Merge pull request #2868 from kmlebedev/hashicorp_raft

hashicorp raft
2024-01-19 02:48:24 +00:00 · 2022-04-10 23:00:05 -07:00 · 2022-04-10 23:00:05 -07:00 · a87f57e47c
parent c6ec5269f4 931cb9e581
commit a87f57e47c
33 changed files with 1817 additions and 252 deletions
--- a/docker/Makefile
+++ b/docker/Makefile
@ -55,6 +55,9 @@ cluster: build
 2clusters: build
 	docker-compose -f compose/local-clusters-compose.yml -p seaweedfs up

+hashicorp_raft: build
+	docker-compose -f compose/local-hashicorp-raft-compose.yml -p seaweedfs up
+
 s3tests: build s3tests_build
 	docker-compose -f compose/local-s3tests-compose.yml -p seaweedfs up

--- a/docker/compose/local-hashicorp-raft-compose.yml
+++ b/docker/compose/local-hashicorp-raft-compose.yml
@ -0,0 +1,89 @@
+version: '2'
+
+services:
+  master0:
+    image: chrislusf/seaweedfs:local
+    ports:
+      - 9333:9333
+      - 19333:19333
+    command: "-v=4 master -volumeSizeLimitMB 100 -raftHashicorp -ip=master0 -port=9333 -peers=master1:9334,master2:9335 -mdir=/data"
+    volumes:
+      - ./master/0:/data
+    environment:
+      WEED_MASTER_VOLUME_GROWTH_COPY_1: 1
+      WEED_MASTER_VOLUME_GROWTH_COPY_2: 2
+      WEED_MASTER_VOLUME_GROWTH_COPY_OTHER: 1
+  master1:
+    image: chrislusf/seaweedfs:local
+    ports:
+      - 9334:9334
+      - 19334:19334
+    command: "-v=4 master -volumeSizeLimitMB 100 -raftHashicorp -ip=master1 -port=9334 -peers=master0:9333,master2:9335 -mdir=/data"
+    volumes:
+      - ./master/1:/data
+    environment:
+      WEED_MASTER_VOLUME_GROWTH_COPY_1: 1
+      WEED_MASTER_VOLUME_GROWTH_COPY_2: 2
+      WEED_MASTER_VOLUME_GROWTH_COPY_OTHER: 1
+  master2:
+    image: chrislusf/seaweedfs:local
+    ports:
+      - 9335:9335
+      - 19335:19335
+    command: "-v=4 master -volumeSizeLimitMB 100 -raftHashicorp -ip=master2 -port=9335 -peers=master0:9333,master1:9334 -mdir=/data"
+    volumes:
+      - ./master/2:/data
+    environment:
+      WEED_MASTER_VOLUME_GROWTH_COPY_1: 1
+      WEED_MASTER_VOLUME_GROWTH_COPY_2: 2
+      WEED_MASTER_VOLUME_GROWTH_COPY_OTHER: 1
+  volume1:
+    image: chrislusf/seaweedfs:local
+    ports:
+      - 8080:8080
+      - 18080:18080
+    command: 'volume -dataCenter=dc1 -rack=v1 -mserver="master0:9333,master1:9334,master2:9335" -port=8080 -ip=volume1 -publicUrl=localhost:8080 -preStopSeconds=1'
+    depends_on:
+      - master0
+      - master1
+  volume2:
+    image: chrislusf/seaweedfs:local
+    ports:
+      - 8082:8082
+      - 18082:18082
+    command: 'volume -dataCenter=dc2 -rack=v2 -mserver="master0:9333,master1:9334,master2:9335" -port=8082 -ip=volume2 -publicUrl=localhost:8082 -preStopSeconds=1'
+    depends_on:
+      - master0
+      - master1
+  volume3:
+    image: chrislusf/seaweedfs:local
+    ports:
+      - 8083:8083
+      - 18083:18083
+    command: 'volume -dataCenter=dc3 -rack=v3 -mserver="master0:9333,master1:9334,master2:9335" -port=8083 -ip=volume3 -publicUrl=localhost:8083 -preStopSeconds=1'
+    depends_on:
+      - master0
+      - master1
+  filer:
+    image: chrislusf/seaweedfs:local
+    ports:
+      - 8888:8888
+      - 18888:18888
+      - 8111:8111
+    command: 'filer -defaultReplicaPlacement=100 -iam -master="master0:9333,master1:9334,master2:9335"'
+    depends_on:
+      - master0
+      - master1
+      - volume1
+      - volume2
+  s3:
+    image: chrislusf/seaweedfs:local
+    ports:
+      - 8333:8333
+    command: '-v=9 s3 -ip.bind="s3" -filer="filer:8888"'
+    depends_on:
+      - master0
+      - master1
+      - volume1
+      - volume2
+      - filer
--- a/go.mod
+++ b/go.mod
@ -148,13 +148,17 @@ require (
 )

 require (
+	github.com/Jille/raft-grpc-transport v1.2.0
 	github.com/fluent/fluent-logger-golang v1.9.0
 	github.com/hanwen/go-fuse/v2 v2.1.0
+	github.com/hashicorp/raft v1.3.6
+	github.com/hashicorp/raft-boltdb v0.0.0-20220329195025-15018e9b97e0
 )

 require (
 	cloud.google.com/go/compute v1.5.0 // indirect
 	cloud.google.com/go/iam v0.3.0 // indirect
+	github.com/armon/go-metrics v0.3.10 // indirect
 	github.com/aws/aws-sdk-go-v2 v1.16.2 // indirect
 	github.com/aws/aws-sdk-go-v2/config v1.15.3 // indirect
 	github.com/aws/aws-sdk-go-v2/credentials v1.11.2 // indirect
@ -168,17 +172,24 @@ require (
 	github.com/aws/aws-sdk-go-v2/service/sso v1.11.3 // indirect
 	github.com/aws/aws-sdk-go-v2/service/sts v1.16.3 // indirect
 	github.com/aws/smithy-go v1.11.2 // indirect
+	github.com/boltdb/bolt v1.3.1 // indirect
 	github.com/d4l3k/messagediff v1.2.1 // indirect
+	github.com/fatih/color v1.13.0 // indirect
 	github.com/fclairamb/go-log v0.1.0 // indirect
 	github.com/gogo/protobuf v1.3.2 // indirect
 	github.com/googleapis/go-type-adapters v1.0.0 // indirect
 	github.com/googleapis/google-cloud-go-testing v0.0.0-20200911160855-bcd43fbb19e8 // indirect
+	github.com/hashicorp/go-hclog v1.0.0 // indirect
+	github.com/hashicorp/go-immutable-radix v1.3.1 // indirect
+	github.com/hashicorp/go-msgpack v1.1.5 // indirect
+	github.com/hashicorp/golang-lru v0.5.4 // indirect
 	github.com/jcmturner/aescts/v2 v2.0.0 // indirect
 	github.com/jcmturner/dnsutils/v2 v2.0.0 // indirect
 	github.com/jcmturner/goidentity/v6 v6.0.1 // indirect
 	github.com/jcmturner/rpc/v2 v2.0.3 // indirect
 	github.com/josharian/intern v1.0.0 // indirect
 	github.com/klauspost/cpuid/v2 v2.0.6 // indirect
+	github.com/mattn/go-colorable v0.1.12 // indirect
 	github.com/mattn/go-runewidth v0.0.7 // indirect
 	github.com/mattn/go-sqlite3 v2.0.1+incompatible // indirect
 	github.com/nats-io/nats.go v1.13.1-0.20220121202836-972a071d373d // indirect
--- a/go.sum
+++ b/go.sum
@ -115,7 +115,11 @@ github.com/Azure/go-autorest/tracing v0.6.0 h1:TYi4+3m5t6K48TGI9AUdb+IzbnSxvnvUM
 github.com/Azure/go-autorest/tracing v0.6.0/go.mod h1:+vhtPC754Xsa23ID7GlGsrdKBpUA79WCAKPPZVC2DeU=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
+github.com/DataDog/datadog-go v2.2.0+incompatible/go.mod h1:LButxg5PwREeZtORoXG3tL4fMGNddJ+vMq1mwgfaqoQ=
+github.com/DataDog/datadog-go v3.2.0+incompatible/go.mod h1:LButxg5PwREeZtORoXG3tL4fMGNddJ+vMq1mwgfaqoQ=
 github.com/GoogleCloudPlatform/cloudsql-proxy v1.29.0/go.mod h1:spvB9eLJH9dutlbPSRmHvSXXHOwGRyeXh1jVdquA2G8=
+github.com/Jille/raft-grpc-transport v1.2.0 h1:W/YSPz8IsirEyomjKmDog5Xk71o9+l4KhyMEX2TsgSs=
+github.com/Jille/raft-grpc-transport v1.2.0/go.mod h1:GQGUXJfjlzwA390Ox1AyVYpjCLhtGd6yqY9Sb5hpQfc=
 github.com/Knetic/govaluate v3.0.1-0.20171022003610-9aa49832a739+incompatible/go.mod h1:r7JcOSlj0wfOMncg0iLm8Leh48TZaKVeNIfJntJ2wa0=
 github.com/Masterminds/semver/v3 v3.1.1/go.mod h1:VPu/7SZ7ePZ3QOrcuXROw5FAcLl4a0cBrbBpGY/8hQs=
 github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
@ -138,6 +142,11 @@ github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d/go.mod h1:rBZYJk5
 github.com/antihax/optional v1.0.0/go.mod h1:uupD/76wgC+ih3iEmQUL+0Ugr19nfwCT1kdvxnR2qWY=
 github.com/armon/circbuf v0.0.0-20150827004946-bbbad097214e/go.mod h1:3U/XgcO3hCbHZ8TKRvWD2dDTCfh9M9ya+I9JpbB7O8o=
 github.com/armon/go-metrics v0.0.0-20180917152333-f0300d1749da/go.mod h1:Q73ZrmVTwzkszR9V5SSuryQ31EELlFMUz1kKyl939pY=
+github.com/armon/go-metrics v0.0.0-20190430140413-ec5e00d3c878/go.mod h1:3AMJUQhVx52RsWOnlkpikZr01T/yAVN2gn0861vByNg=
+github.com/armon/go-metrics v0.3.8/go.mod h1:4O98XIr/9W0sxpJ8UaYkvjk10Iff7SnFrb4QAOwNTFc=
+github.com/armon/go-metrics v0.3.9/go.mod h1:4O98XIr/9W0sxpJ8UaYkvjk10Iff7SnFrb4QAOwNTFc=
+github.com/armon/go-metrics v0.3.10 h1:FR+drcQStOe+32sYyJYyZ7FIdgoGGBnwLl+flodp8Uo=
+github.com/armon/go-metrics v0.3.10/go.mod h1:4O98XIr/9W0sxpJ8UaYkvjk10Iff7SnFrb4QAOwNTFc=
 github.com/armon/go-radix v0.0.0-20180808171621-7fddfc383310/go.mod h1:ufUuZ+zHj4x4TnLV4JWEpy2hxWSpsRywHrMgIH9cCH8=
 github.com/armon/go-radix v1.0.0/go.mod h1:ufUuZ+zHj4x4TnLV4JWEpy2hxWSpsRywHrMgIH9cCH8=
 github.com/aws/aws-sdk-go v1.15.27/go.mod h1:mFuSZ37Z9YOHbQEwBWztmVzqXrEkub65tZoCYDt7FT0=
@ -195,6 +204,8 @@ github.com/bitly/go-hostpool v0.0.0-20171023180738-a3a6125de932 h1:mXoPYz/Ul5HYE
 github.com/bitly/go-hostpool v0.0.0-20171023180738-a3a6125de932/go.mod h1:NOuUCSz6Q9T7+igc/hlvDOUdtWKryOrtFyIVABv/p7k=
 github.com/bmizerany/assert v0.0.0-20160611221934-b7ed37b82869 h1:DDGfHa7BWjL4YnC6+E63dPcxHo2sUxDIu8g3QgEJdRY=
 github.com/bmizerany/assert v0.0.0-20160611221934-b7ed37b82869/go.mod h1:Ekp36dRnpXw/yCqJaO+ZrUyxD+3VXMFFr56k5XYrpB4=
+github.com/boltdb/bolt v1.3.1 h1:JQmyP4ZBrce+ZQu0dY660FMfatumYDLun9hBCUVIkF4=
+github.com/boltdb/bolt v1.3.1/go.mod h1:clJnj/oiGkjum5o1McbSZDSLxVThjynRyGBgiAx27Ps=
 github.com/buraksezer/consistent v0.0.0-20191006190839-693edf70fd72 h1:fUmDBbSvv1uOzo/t8WaxZMVb7BxJ8JECo5lGoR9c5bA=
 github.com/buraksezer/consistent v0.0.0-20191006190839-693edf70fd72/go.mod h1:OEE5igu/CDjGegM1Jn6ZMo7R6LlV/JChAkjfQQIRLpg=
 github.com/bwmarrin/snowflake v0.3.0 h1:xm67bEhkKh6ij1790JB83OujPR5CzNe8QuQqAgISZN0=
@ -213,6 +224,8 @@ github.com/chrislusf/raft v1.0.8/go.mod h1:Ep5DP+mJSosjfKiix1uU7Lc2Df/SX4oGJEpZl
 github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
 github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI=
 github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
+github.com/circonus-labs/circonus-gometrics v2.3.1+incompatible/go.mod h1:nmEj6Dob7S7YxXgwXpfOuvO54S+tGdZdw9fuRZt25Ag=
+github.com/circonus-labs/circonusllhist v0.1.3/go.mod h1:kMXHVDlOchFAehlya5ePtbp5jckzBHf4XRpQvBOLI+I=
 github.com/clbanning/x2j v0.0.0-20191024224557-825249438eec/go.mod h1:jMjuTZXRI4dUb/I5gc9Hdhagfvm9+RyrPryS/auMzxE=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
 github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc=
@ -282,6 +295,9 @@ github.com/facebookgo/subset v0.0.0-20200203212716-c811ad88dec4 h1:7HZCaLC5+BZpm
 github.com/facebookgo/subset v0.0.0-20200203212716-c811ad88dec4/go.mod h1:5tD+neXqOorC30/tWg0LCSkrqj/AR6gu8yY8/fpw1q0=
 github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5KwzbycvMj4=
 github.com/fatih/color v1.9.0/go.mod h1:eQcE1qtQxscV5RaZvpXrrb8Drkc3/DdQ+uUYCNjL+zU=
+github.com/fatih/color v1.12.0/go.mod h1:ELkj/draVOlAH/xkhN6mQ50Qd0MPOk5AAr3maGEBuJM=
+github.com/fatih/color v1.13.0 h1:8LOYc1KYPPmyKMuN8QV2DNRWNbLo6LZ0iLs8+mlH53w=
+github.com/fatih/color v1.13.0/go.mod h1:kLAiJbzzSOZDVNGyDpeOxJ47H46qBXwg5ILebYFFOfk=
 github.com/fclairamb/ftpserverlib v0.17.0 h1:Eo8K8p8WiYQEum78n67ldIR6Cgo4H1HJA3IlXUu81d4=
 github.com/fclairamb/ftpserverlib v0.17.0/go.mod h1:Esiksahi2IQa9QSPl+0WSmysCumi1oyzPC7oUMPmTn4=
 github.com/fclairamb/go-log v0.1.0 h1:fNoqk8w62i4EDEuRzDgHdDVTqMYSyr3DS981R7F2x/Y=
@ -420,6 +436,8 @@ github.com/google/go-replayers/grpcreplay v1.1.0/go.mod h1:qzAvJ8/wi57zq7gWqaE6A
 github.com/google/go-replayers/httpreplay v1.1.1 h1:H91sIMlt1NZzN7R+/ASswyouLJfW0WLW7fhyUFvDEkY=
 github.com/google/go-replayers/httpreplay v1.1.1/go.mod h1:gN9GeLIs7l6NUoVaSSnv2RiqK1NiwAmD0MrKeC9IIks=
 github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
+github.com/google/gofuzz v1.2.0 h1:xRy4A+RhZaiKjJ1bPfwQ8sedCA+YS2YcCHW6ec7JMi0=
+github.com/google/gofuzz v1.2.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
 github.com/google/martian v2.1.0+incompatible/go.mod h1:9I4somxYTbIHy5NJKHRl3wXiIaQGbYVAs8BPL6v8lEs=
 github.com/google/martian v2.1.1-0.20190517191504-25dcb96d9e51+incompatible h1:xmapqc1AyLoB+ddYT6r04bD9lIjlOqGaREovi0SzFaE=
 github.com/google/martian v2.1.1-0.20190517191504-25dcb96d9e51+incompatible/go.mod h1:9I4somxYTbIHy5NJKHRl3wXiIaQGbYVAs8BPL6v8lEs=
@ -485,13 +503,24 @@ github.com/hashicorp/consul/api v1.8.1/go.mod h1:sDjTOq0yUyv5G4h+BqSea7Fn6BU+Xbo
 github.com/hashicorp/consul/sdk v0.7.0/go.mod h1:fY08Y9z5SvJqevyZNy6WWPXiG3KwBPAvlcdx16zZ0fM=
 github.com/hashicorp/errwrap v1.0.0 h1:hLrqtEDnRye3+sgx6z4qVLNuviH3MR5aQ0ykNJa/UYA=
 github.com/hashicorp/errwrap v1.0.0/go.mod h1:YH+1FKiLXxHSkmPseP+kNlulaMuP3n2brvKWEqk/Jc4=
+github.com/hashicorp/go-cleanhttp v0.5.0/go.mod h1:JpRdi6/HCYpAwUzNwuwqhbovhLtngrth3wmdIIUrZ80=
 github.com/hashicorp/go-cleanhttp v0.5.1/go.mod h1:JpRdi6/HCYpAwUzNwuwqhbovhLtngrth3wmdIIUrZ80=
+github.com/hashicorp/go-hclog v0.9.1/go.mod h1:5CU+agLiy3J7N7QjHK5d05KxGsuXiQLrjA0H7acj2lQ=
 github.com/hashicorp/go-hclog v0.12.0/go.mod h1:whpDNt7SSdeAju8AWKIWsul05p54N/39EeqMAyrmvFQ=
+github.com/hashicorp/go-hclog v0.16.2/go.mod h1:whpDNt7SSdeAju8AWKIWsul05p54N/39EeqMAyrmvFQ=
+github.com/hashicorp/go-hclog v1.0.0 h1:bkKf0BeBXcSYa7f5Fyi9gMuQ8gNsxeiNpZjR6VxNZeo=
+github.com/hashicorp/go-hclog v1.0.0/go.mod h1:whpDNt7SSdeAju8AWKIWsul05p54N/39EeqMAyrmvFQ=
 github.com/hashicorp/go-immutable-radix v1.0.0/go.mod h1:0y9vanUI8NX6FsYoO3zeMjhV/C5i9g4Q3DwcSNZ4P60=
+github.com/hashicorp/go-immutable-radix v1.3.1 h1:DKHmCUm2hRBK510BaiZlwvpD40f8bJFeZnpfm2KLowc=
+github.com/hashicorp/go-immutable-radix v1.3.1/go.mod h1:0y9vanUI8NX6FsYoO3zeMjhV/C5i9g4Q3DwcSNZ4P60=
 github.com/hashicorp/go-msgpack v0.5.3/go.mod h1:ahLV/dePpqEmjfWmKiqvPkv/twdG7iPBM1vqhUKIvfM=
+github.com/hashicorp/go-msgpack v0.5.5/go.mod h1:ahLV/dePpqEmjfWmKiqvPkv/twdG7iPBM1vqhUKIvfM=
+github.com/hashicorp/go-msgpack v1.1.5 h1:9byZdVjKTe5mce63pRVNP1L7UAmdHOTEMGehn6KvJWs=
+github.com/hashicorp/go-msgpack v1.1.5/go.mod h1:gWVc3sv/wbDmR3rQsj1CAktEZzoz1YNK9NfGLXJ69/4=
 github.com/hashicorp/go-multierror v1.0.0/go.mod h1:dHtQlpGsu+cZNNAkkCN/P3hoUDHhCYQXV3UM06sGGrk=
 github.com/hashicorp/go-multierror v1.1.0 h1:B9UzwGQJehnUY1yNrnwREHc3fGbC2xefo8g4TbElacI=
 github.com/hashicorp/go-multierror v1.1.0/go.mod h1:spPvp8C1qA32ftKqdAHm4hHTbPw+vmowP0z+KUhOZdA=
+github.com/hashicorp/go-retryablehttp v0.5.3/go.mod h1:9B5zBasrRhHXnJnui7y6sL7es7NDiJgTc6Er0maI1Xs=
 github.com/hashicorp/go-rootcerts v1.0.2/go.mod h1:pqUvnprVnM5bf7AOirdbb01K4ccR319Vf4pU3K5EGc8=
 github.com/hashicorp/go-sockaddr v1.0.0/go.mod h1:7Xibr9yA9JjQq1JpNB2Vw7kxv8xerXegt+ozgdvDeDU=
 github.com/hashicorp/go-syslog v1.0.0/go.mod h1:qPfqrKkXGihmCqbJM2mZgkZGvKG1dFdvsLplgctolz4=
@ -501,11 +530,19 @@ github.com/hashicorp/go-uuid v1.0.2 h1:cfejS+Tpcp13yd5nYHWDI6qVCny6wyX2Mt5SGur2I
 github.com/hashicorp/go-uuid v1.0.2/go.mod h1:6SBZvOh/SIDV7/2o3Jml5SYk/TvGqwFJ/bN7x4byOro=
 github.com/hashicorp/golang-lru v0.5.0/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
 github.com/hashicorp/golang-lru v0.5.1/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
+github.com/hashicorp/golang-lru v0.5.4 h1:YDjusn29QI/Das2iO9M0BHnIbxPeyuCHsjMW+lJfyTc=
+github.com/hashicorp/golang-lru v0.5.4/go.mod h1:iADmTwqILo4mZ8BN3D2Q6+9jd8WM5uGBxy+E8yxSoD4=
 github.com/hashicorp/hcl v1.0.0 h1:0Anlzjpi4vEasTeNFn2mLJgTSwt0+6sfsiTG8qcWGx4=
 github.com/hashicorp/hcl v1.0.0/go.mod h1:E5yfLk+7swimpb2L/Alb/PJmXilQ/rhwaUYs4T20WEQ=
 github.com/hashicorp/logutils v1.0.0/go.mod h1:QIAnNjmIWmVIIkWDTG1z5v++HQmx9WQRO+LraFDTW64=
 github.com/hashicorp/mdns v1.0.1/go.mod h1:4gW7WsVCke5TE7EPeYliwHlRUyBtfCwuFwuMg2DmyNY=
 github.com/hashicorp/memberlist v0.2.2/go.mod h1:MS2lj3INKhZjWNqd3N0m3J+Jxf3DAOnAH9VT3Sh9MUE=
+github.com/hashicorp/raft v1.1.0/go.mod h1:4Ak7FSPnuvmb0GV6vgIAJ4vYT4bek9bb6Q+7HVbyzqM=
+github.com/hashicorp/raft v1.3.1/go.mod h1:4Ak7FSPnuvmb0GV6vgIAJ4vYT4bek9bb6Q+7HVbyzqM=
+github.com/hashicorp/raft v1.3.6 h1:v5xW5KzByoerQlN/o31VJrFNiozgzGyDoMgDJgXpsto=
+github.com/hashicorp/raft v1.3.6/go.mod h1:4Ak7FSPnuvmb0GV6vgIAJ4vYT4bek9bb6Q+7HVbyzqM=
+github.com/hashicorp/raft-boltdb v0.0.0-20220329195025-15018e9b97e0 h1:CO8dBMLH6dvE1jTn/30ZZw3iuPsNfajshWoJTnVc5cc=
+github.com/hashicorp/raft-boltdb v0.0.0-20220329195025-15018e9b97e0/go.mod h1:nTakvJ4XYq45UXtn0DbwR4aU9ZdjlnIenpbs6Cd+FM0=
 github.com/hashicorp/serf v0.9.5/go.mod h1:UWDWwZeL5cuWDJdl0C6wrvrUwEqtQ4ZKBKKENpqIUyk=
 github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU=
 github.com/hudl/fargo v1.3.0/go.mod h1:y3CKSmjA+wD2gak7sUSXTAoopbhU08POFhmITJgmKTg=
@ -640,6 +677,10 @@ github.com/mattn/go-colorable v0.0.9/go.mod h1:9vuHe8Xs5qXnSaW/c/ABM9alt+Vo+STaO
 github.com/mattn/go-colorable v0.1.1/go.mod h1:FuOcm+DKB9mbwrcAfNl7/TZVBZ6rcnceauSikq3lYCQ=
 github.com/mattn/go-colorable v0.1.4/go.mod h1:U0ppj6V5qS13XJ6of8GYAs25YV2eR4EVcfRqFIhoBtE=
 github.com/mattn/go-colorable v0.1.6/go.mod h1:u6P/XSegPjTcexA+o6vUJrdnUu04hMope9wVRipJSqc=
+github.com/mattn/go-colorable v0.1.8/go.mod h1:u6P/XSegPjTcexA+o6vUJrdnUu04hMope9wVRipJSqc=
+github.com/mattn/go-colorable v0.1.9/go.mod h1:u6P/XSegPjTcexA+o6vUJrdnUu04hMope9wVRipJSqc=
+github.com/mattn/go-colorable v0.1.12 h1:jF+Du6AlPIjs2BiUiQlKOX0rt3SujHxPnksPKZbaA40=
+github.com/mattn/go-colorable v0.1.12/go.mod h1:u5H1YNBxpqRaxsYJYSkiCWKzEfiAb1Gb520KVy5xxl4=
 github.com/mattn/go-ieproxy v0.0.1/go.mod h1:pYabZ6IHcRpFh7vIaLfK7rdcWgFEb3SFJ6/gNWuh88E=
 github.com/mattn/go-ieproxy v0.0.3 h1:YkaHmK1CzE5C4O7A3hv3TCbfNDPSCf0RKZFX+VhBeYk=
 github.com/mattn/go-ieproxy v0.0.3/go.mod h1:6ZpRmhBaYuBX1U2za+9rC9iCGLsSp2tftelZne7CPko=
@ -722,6 +763,8 @@ github.com/opentracing/opentracing-go v1.1.0/go.mod h1:UkNAQd3GIcIGf0SeVgPpRdFSt
 github.com/opentracing/opentracing-go v1.2.0/go.mod h1:GxEUsuufX4nBwe+T+Wl9TAgYrxe9dPLANfrWvHYVTgc=
 github.com/openzipkin/zipkin-go v0.2.5/go.mod h1:KpXfKdgRDnnhsxw4pNIH9Md5lyFqKUa4YDFlwRYAMyE=
 github.com/pascaldekloe/goe v0.0.0-20180627143212-57f6aae5913c/go.mod h1:lzWF7FIEvWOWxwDKqyGYQf6ZUaNfKdP144TG7ZOy1lc=
+github.com/pascaldekloe/goe v0.1.0 h1:cBOtyMzM9HTpWjXfbbunk26uA6nG3a8n06Wieeh0MwY=
+github.com/pascaldekloe/goe v0.1.0/go.mod h1:lzWF7FIEvWOWxwDKqyGYQf6ZUaNfKdP144TG7ZOy1lc=
 github.com/pelletier/go-toml v1.9.4 h1:tjENF6MfZAg8e4ZmZTeWaWiT2vXtsoO6+iuOjFhECwM=
 github.com/pelletier/go-toml v1.9.4/go.mod h1:u1nR/EPcESfeI/szUZKdtJ0xRNbUoANCkoOuaOx1Y+c=
 github.com/performancecopilot/speed v3.0.0+incompatible/go.mod h1:/CLtqpZ5gBg1M9iaPbIdPPGyKcA8hKdoy6hAWba7Yac=
@ -747,7 +790,9 @@ github.com/posener/complete v1.2.3/go.mod h1:WZIdtGGp+qx0sLrYKtIRAruyNpv6hFCicSg
 github.com/pquerna/cachecontrol v0.1.0 h1:yJMy84ti9h/+OEWa752kBTKv4XC30OtVVHYv/8cTqKc=
 github.com/pquerna/cachecontrol v0.1.0/go.mod h1:NrUG3Z7Rdu85UNR3vm7SOsl1nFIeSiQnrHV5K9mBcUI=
 github.com/prometheus/client_golang v0.9.1/go.mod h1:7SWBe2y4D6OKWSNQJUaRYU/AaXPKyh/dDVn+NZz0KFw=
+github.com/prometheus/client_golang v0.9.2/go.mod h1:OsXs2jCmiKlQ1lTBmv21f2mNfw4xf/QclQDMrYNZzcM=
 github.com/prometheus/client_golang v1.0.0/go.mod h1:db9x61etRT2tGnBNRi70OPL5FsnadC4Ky3P0J6CfImo=
+github.com/prometheus/client_golang v1.4.0/go.mod h1:e9GMxYsXl05ICDXkRhurwBS4Q3OK1iX/F2sw+iXX5zU=
 github.com/prometheus/client_golang v1.7.1/go.mod h1:PY5Wy2awLA44sXw4AOSfFBetzPP4j5+D6mVACh+pe2M=
 github.com/prometheus/client_golang v1.11.0/go.mod h1:Z6t4BnS23TR94PD6BsDNk8yVqroYurpAkEiz0P2BEV0=
 github.com/prometheus/client_golang v1.12.1 h1:ZiaPsmm9uiBeaSMRznKsCDNtPCS0T3JVDGF+06gjBzk=
@ -757,13 +802,17 @@ github.com/prometheus/client_model v0.0.0-20190129233127-fd36f4220a90/go.mod h1:
 github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
 github.com/prometheus/client_model v0.2.0 h1:uq5h0d+GuxiXLJLNABMgp2qUWDPiLvgCzz2dUR+/W/M=
 github.com/prometheus/client_model v0.2.0/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
+github.com/prometheus/common v0.0.0-20181126121408-4724e9255275/go.mod h1:daVV7qP5qjZbuso7PdcryaAu0sAZbrN9i7WWcTMWvro=
 github.com/prometheus/common v0.4.1/go.mod h1:TNfzLD0ON7rHzMJeJkieUDPYmFC7Snx/y86RQel1bk4=
+github.com/prometheus/common v0.9.1/go.mod h1:yhUN8i9wzaXS3w1O07YhxHEBxD+W35wd8bs7vj7HSQ4=
 github.com/prometheus/common v0.10.0/go.mod h1:Tlit/dnDKsSWFlCLTWaA1cyBgKHSMdTB80sz/V91rCo=
 github.com/prometheus/common v0.26.0/go.mod h1:M7rCNAaPfAosfx8veZJCuw84e35h3Cfd9VFqTh1DIvc=
 github.com/prometheus/common v0.32.1 h1:hWIdL3N2HoUx3B8j3YN9mWor0qhY/NlEKZEaXxuIRh4=
 github.com/prometheus/common v0.32.1/go.mod h1:vu+V0TpY+O6vW9J44gczi3Ap/oXXR10b+M/gUGO4Hls=
 github.com/prometheus/procfs v0.0.0-20181005140218-185b4288413d/go.mod h1:c3At6R/oaqEKCNdg8wHV1ftS6bRYblBhIjjI8uT2IGk=
+github.com/prometheus/procfs v0.0.0-20181204211112-1dc9a6cbc91a/go.mod h1:c3At6R/oaqEKCNdg8wHV1ftS6bRYblBhIjjI8uT2IGk=
 github.com/prometheus/procfs v0.0.2/go.mod h1:TjEm7ze935MbeOT/UhFTIMYKhuLP4wbCsTZCD3I8kEA=
+github.com/prometheus/procfs v0.0.8/go.mod h1:7Qr8sr6344vo1JqZ6HhLceV9o3AJ1Ff+GxbHq6oeK9A=
 github.com/prometheus/procfs v0.1.3/go.mod h1:lV6e/gmhEcM9IjHGsFOCxxuZ+z1YqCvr4OA4YeYWdaU=
 github.com/prometheus/procfs v0.6.0/go.mod h1:cz+aTbrPOrUb4q7XlbU9ygM+/jj0fzG6c1xBZuNvfVA=
 github.com/prometheus/procfs v0.7.3 h1:4jVXhlkAyzOScmCkXBTOLRLTz8EeU+eyjrwB/EPq0VU=
@ -848,6 +897,7 @@ github.com/tinylib/msgp v1.1.6 h1:i+SbKraHhnrf9M5MYmvQhFnbLhAXSDWF8WWsuyRdocw=
 github.com/tinylib/msgp v1.1.6/go.mod h1:75BAfg2hauQhs3qedfdDZmWAPcFMAvJE5b9rGOMufyw=
 github.com/tsuna/gohbase v0.0.0-20201125011725-348991136365 h1:6iRwZdrFUzbcVYZwa8dXTIILGIxmmhjyUPJEcwzPGaU=
 github.com/tsuna/gohbase v0.0.0-20201125011725-348991136365/go.mod h1:zj0GJHGvyf1ed3Jm/Tb4830c/ZKDq+YoLsCt2rGQuT0=
+github.com/tv42/httpunix v0.0.0-20150427012821-b75d8614f926/go.mod h1:9ESjWnEqriFuLhtthL60Sar/7RFoluCcXsuvEwTV5KM=
 github.com/tylertreat/BoomFilters v0.0.0-20210315201527-1a82519a3e43 h1:QEePdg0ty2r0t1+qwfZmQ4OOl/MB2UXIeJSpIZv56lg=
 github.com/tylertreat/BoomFilters v0.0.0-20210315201527-1a82519a3e43/go.mod h1:OYRfF6eb5wY9VRFkXJH8FFBi3plw2v+giaIu7P054pM=
 github.com/ugorji/go v1.1.7/go.mod h1:kZn38zHttfInRq0xu/PH0az30d+z6vm202qpg1oXVMw=
@ -1000,6 +1050,7 @@ golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73r
 golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20181023162649-9b4f9f5ad519/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20181114220301-adae6a3d119a/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
+golang.org/x/net v0.0.0-20181201002055-351d144fa1fc/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20190108225652-1e06a53dbb7e/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20190213061140-3a22650c66bd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
@ -1042,6 +1093,7 @@ golang.org/x/net v0.0.0-20210428140749-89ef3d95e781/go.mod h1:OJAsFXCWl8Ukc7SiCT
 golang.org/x/net v0.0.0-20210503060351-7fd8e65b6420/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
 golang.org/x/net v0.0.0-20210525063256-abc453219eb5/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
 golang.org/x/net v0.0.0-20210610132358-84b48f89b13b/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
+golang.org/x/net v0.0.0-20210907225631-ff17edfbf26d/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
 golang.org/x/net v0.0.0-20211020060615-d418f374d309/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
 golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
 golang.org/x/net v0.0.0-20220107192237-5cfca573fb4d/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
@ -1162,8 +1214,10 @@ golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c/go.mod h1:oPkhp1MJrh7nUepCBc
 golang.org/x/sys v0.0.0-20210806184541-e5e7981a1069/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210823070655-63515b42dcdf/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210902050250-f475640dd07b/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20210906170528-6f6e22806c34/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210908233432-aa78b53d3365/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210917161153-d61c044b1678/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20210927094055-39ccf1dd6fa6/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20211007075335-d3039528d8ac/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20211116061358-0a5406a5449c/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20211117180635-dee7805ff2e1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
@ -1208,6 +1262,7 @@ golang.org/x/tools v0.0.0-20190312151545-0bb0c0a6e846/go.mod h1:LCzVGOaR6xXOjkQ3
 golang.org/x/tools v0.0.0-20190312170243-e65039ee4138/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
 golang.org/x/tools v0.0.0-20190328211700-ab21143f2384/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
 golang.org/x/tools v0.0.0-20190422233926-fe54fb35175b/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
+golang.org/x/tools v0.0.0-20190424220101-1e8e1cfdf96b/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
 golang.org/x/tools v0.0.0-20190425150028-36563e24a262/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
 golang.org/x/tools v0.0.0-20190425163242-31fd60d6bfdc/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
 golang.org/x/tools v0.0.0-20190506145303-2d16b83fe98c/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
--- a/weed/cluster/cluster.go
+++ b/weed/cluster/cluster.go
@ -81,6 +81,15 @@ func (cluster *Cluster) AddClusterNode(nodeType string, address pb.ServerAddress
 			},
 		}
 	case MasterType:
+		return []*master_pb.KeepConnectedResponse{
+			{
+				ClusterNodeUpdate: &master_pb.ClusterNodeUpdate{
+					NodeType: nodeType,
+					Address:  string(address),
+					IsAdd:    true,
+				},
+			},
+		}
 	}
 	return nil
 }
@ -120,6 +129,15 @@ func (cluster *Cluster) RemoveClusterNode(nodeType string, address pb.ServerAddr
 			}
 		}
 	case MasterType:
+		return []*master_pb.KeepConnectedResponse{
+			{
+				ClusterNodeUpdate: &master_pb.ClusterNodeUpdate{
+					NodeType: nodeType,
+					Address:  string(address),
+					IsAdd:    false,
+				},
+			},
+		}
 	}
 	return nil
 }
--- a/weed/command/master.go
+++ b/weed/command/master.go
@ -48,6 +48,8 @@ type MasterOptions struct {
 	metricsHttpPort    *int
 	heartbeatInterval  *time.Duration
 	electionTimeout    *time.Duration
+	raftHashicorp      *bool
+	raftBootstrap      *bool
 }

 func init() {
@ -71,6 +73,8 @@ func init() {
 	m.raftResumeState = cmdMaster.Flag.Bool("resumeState", false, "resume previous state on start master server")
 	m.heartbeatInterval = cmdMaster.Flag.Duration("heartbeatInterval", 300*time.Millisecond, "heartbeat interval of master servers, and will be randomly multiplied by [1, 1.25)")
 	m.electionTimeout = cmdMaster.Flag.Duration("electionTimeout", 10*time.Second, "election timeout of master servers")
+	m.raftHashicorp = cmdMaster.Flag.Bool("raftHashicorp", false, "use hashicorp raft")
+	m.raftBootstrap = cmdMaster.Flag.Bool("raftBootstrap", false, "Whether to bootstrap the Raft cluster")
 }

 var cmdMaster = &Command{
@ -156,13 +160,25 @@ func startMaster(masterOption MasterOptions, masterWhiteList []string) {
 		RaftResumeState:   *masterOption.raftResumeState,
 		HeartbeatInterval: *masterOption.heartbeatInterval,
 		ElectionTimeout:   *masterOption.electionTimeout,
+		RaftBootstrap:     *m.raftBootstrap,
 	}
-	raftServer, err := weed_server.NewRaftServer(raftServerOption)
-	if raftServer == nil {
-		glog.Fatalf("please verify %s is writable, see https://github.com/chrislusf/seaweedfs/issues/717: %s", *masterOption.metaFolder, err)
+	var raftServer *weed_server.RaftServer
+	var err error
+	if *m.raftHashicorp {
+		if raftServer, err = weed_server.NewHashicorpRaftServer(raftServerOption); err != nil {
+			glog.Fatalf("NewHashicorpRaftServer: %s", err)
+		}
+	} else {
+		raftServer, err = weed_server.NewRaftServer(raftServerOption)
+		if raftServer == nil {
+			glog.Fatalf("please verify %s is writable, see https://github.com/chrislusf/seaweedfs/issues/717: %s", *masterOption.metaFolder, err)
+		}
 	}
 	ms.SetRaftServer(raftServer)
 	r.HandleFunc("/cluster/status", raftServer.StatusHandler).Methods("GET")
+	if *m.raftHashicorp {
+		r.HandleFunc("/raft/stats", raftServer.StatsRaftHandler).Methods("GET")
+	}
 	// starting grpc server
 	grpcPort := *masterOption.portGrpc
 	grpcL, grpcLocalL, err := util.NewIpAndLocalListeners(*masterOption.ipBind, grpcPort, 0)
@ -171,7 +187,11 @@ func startMaster(masterOption MasterOptions, masterWhiteList []string) {
 	}
 	grpcS := pb.NewGrpcServer(security.LoadServerTLS(util.GetViper(), "grpc.master"))
 	master_pb.RegisterSeaweedServer(grpcS, ms)
-	protobuf.RegisterRaftServer(grpcS, raftServer)
+	if *m.raftHashicorp {
+		raftServer.TransportManager.Register(grpcS)
+	} else {
+		protobuf.RegisterRaftServer(grpcS, raftServer)
+	}
 	reflection.Register(grpcS)
 	glog.V(0).Infof("Start Seaweed Master %s grpc server at %s:%d", util.Version(), *masterOption.ipBind, grpcPort)
 	if grpcLocalL != nil {
@ -179,14 +199,17 @@ func startMaster(masterOption MasterOptions, masterWhiteList []string) {
 	}
 	go grpcS.Serve(grpcL)

-	go func() {
-		time.Sleep(1500 * time.Millisecond)
-		if ms.Topo.RaftServer.Leader() == "" && ms.Topo.RaftServer.IsLogEmpty() && isTheFirstOne(myMasterAddress, peers) {
-			if ms.MasterClient.FindLeaderFromOtherPeers(myMasterAddress) == "" {
-				raftServer.DoJoinCommand()
+	timeSleep := 1500 * time.Millisecond
+	if !*m.raftHashicorp {
+		go func() {
+			time.Sleep(timeSleep)
+			if ms.Topo.RaftServer.Leader() == "" && ms.Topo.RaftServer.IsLogEmpty() && isTheFirstOne(myMasterAddress, peers) {
+				if ms.MasterClient.FindLeaderFromOtherPeers(myMasterAddress) == "" {
+					raftServer.DoJoinCommand()
+				}
 			}
-		}
-	}()
+		}()
+	}

 	go ms.MasterClient.KeepConnectedToMaster()

--- a/weed/pb/filer_pb/filer.pb.go
+++ b/weed/pb/filer_pb/filer.pb.go
@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.26.0
-// 	protoc        v3.17.3
+// 	protoc-gen-go v1.28.0
+// 	protoc        v3.19.4
 // source: filer.proto

 package filer_pb
--- a/weed/pb/filer_pb/filer_grpc.pb.go
+++ b/weed/pb/filer_pb/filer_grpc.pb.go
@ -11,7 +11,6 @@ import (

 // This is a compile-time assertion to ensure that this generated file
 // is compatible with the grpc package it is being compiled against.
-// Requires gRPC-Go v1.32.0 or later.
 const _ = grpc.SupportPackageIsVersion7

 // SeaweedFilerClient is the client API for SeaweedFiler service.
--- a/weed/pb/iam_pb/iam.pb.go
+++ b/weed/pb/iam_pb/iam.pb.go
@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.26.0
-// 	protoc        v3.17.3
+// 	protoc-gen-go v1.28.0
+// 	protoc        v3.19.4
 // source: iam.proto

 package iam_pb
--- a/weed/pb/iam_pb/iam_grpc.pb.go
+++ b/weed/pb/iam_pb/iam_grpc.pb.go
@ -8,7 +8,6 @@ import (

 // This is a compile-time assertion to ensure that this generated file
 // is compatible with the grpc package it is being compiled against.
-// Requires gRPC-Go v1.32.0 or later.
 const _ = grpc.SupportPackageIsVersion7

 // SeaweedIdentityAccessManagementClient is the client API for SeaweedIdentityAccessManagement service.
--- a/weed/pb/master.proto
+++ b/weed/pb/master.proto
@ -37,6 +37,12 @@ service Seaweed {
  }
  rpc Ping (PingRequest) returns (PingResponse) {
  }
+  rpc RaftListClusterServers (RaftListClusterServersRequest) returns (RaftListClusterServersResponse) {
+  }
+  rpc RaftAddServer (RaftAddServerRequest) returns (RaftAddServerResponse) {
+  }
+  rpc RaftRemoveServer (RaftRemoveServerRequest) returns (RaftRemoveServerResponse) {
+  }
 }

 //////////////////////////////////////////////////
@ -338,3 +344,29 @@ message PingRequest {
 }
 message PingResponse {
 }
+
+message RaftAddServerRequest {
+  string id = 1;
+  string address = 2;
+  bool voter = 3;
+}
+message RaftAddServerResponse {
+}
+
+message RaftRemoveServerRequest {
+  string id = 1;
+  bool force = 2;
+}
+message RaftRemoveServerResponse {
+}
+
+message RaftListClusterServersRequest {
+}
+message RaftListClusterServersResponse {
+  message ClusterServers {
+    string id = 1;
+    string address = 2;
+    string suffrage = 3; //
+  }
+  repeated ClusterServers cluster_servers = 1;
+}
--- a/weed/pb/master_pb/master.pb.go
+++ b/weed/pb/master_pb/master.pb.go
@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.26.0
-// 	protoc        v3.17.3
+// 	protoc-gen-go v1.28.0
+// 	protoc        v3.19.4
 // source: master.proto

 package master_pb
@ -2977,6 +2977,285 @@ func (*PingResponse) Descriptor() ([]byte, []int) {
 	return file_master_proto_rawDescGZIP(), []int{44}
 }

+type RaftAddServerRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Id      string `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
+	Address string `protobuf:"bytes,2,opt,name=address,proto3" json:"address,omitempty"`
+	Voter   bool   `protobuf:"varint,3,opt,name=voter,proto3" json:"voter,omitempty"`
+}
+
+func (x *RaftAddServerRequest) Reset() {
+	*x = RaftAddServerRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_master_proto_msgTypes[45]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *RaftAddServerRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*RaftAddServerRequest) ProtoMessage() {}
+
+func (x *RaftAddServerRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_master_proto_msgTypes[45]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use RaftAddServerRequest.ProtoReflect.Descriptor instead.
+func (*RaftAddServerRequest) Descriptor() ([]byte, []int) {
+	return file_master_proto_rawDescGZIP(), []int{45}
+}
+
+func (x *RaftAddServerRequest) GetId() string {
+	if x != nil {
+		return x.Id
+	}
+	return ""
+}
+
+func (x *RaftAddServerRequest) GetAddress() string {
+	if x != nil {
+		return x.Address
+	}
+	return ""
+}
+
+func (x *RaftAddServerRequest) GetVoter() bool {
+	if x != nil {
+		return x.Voter
+	}
+	return false
+}
+
+type RaftAddServerResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+}
+
+func (x *RaftAddServerResponse) Reset() {
+	*x = RaftAddServerResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_master_proto_msgTypes[46]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *RaftAddServerResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*RaftAddServerResponse) ProtoMessage() {}
+
+func (x *RaftAddServerResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_master_proto_msgTypes[46]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use RaftAddServerResponse.ProtoReflect.Descriptor instead.
+func (*RaftAddServerResponse) Descriptor() ([]byte, []int) {
+	return file_master_proto_rawDescGZIP(), []int{46}
+}
+
+type RaftRemoveServerRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Id    string `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
+	Force bool   `protobuf:"varint,2,opt,name=force,proto3" json:"force,omitempty"`
+}
+
+func (x *RaftRemoveServerRequest) Reset() {
+	*x = RaftRemoveServerRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_master_proto_msgTypes[47]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *RaftRemoveServerRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*RaftRemoveServerRequest) ProtoMessage() {}
+
+func (x *RaftRemoveServerRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_master_proto_msgTypes[47]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use RaftRemoveServerRequest.ProtoReflect.Descriptor instead.
+func (*RaftRemoveServerRequest) Descriptor() ([]byte, []int) {
+	return file_master_proto_rawDescGZIP(), []int{47}
+}
+
+func (x *RaftRemoveServerRequest) GetId() string {
+	if x != nil {
+		return x.Id
+	}
+	return ""
+}
+
+func (x *RaftRemoveServerRequest) GetForce() bool {
+	if x != nil {
+		return x.Force
+	}
+	return false
+}
+
+type RaftRemoveServerResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+}
+
+func (x *RaftRemoveServerResponse) Reset() {
+	*x = RaftRemoveServerResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_master_proto_msgTypes[48]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *RaftRemoveServerResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*RaftRemoveServerResponse) ProtoMessage() {}
+
+func (x *RaftRemoveServerResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_master_proto_msgTypes[48]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use RaftRemoveServerResponse.ProtoReflect.Descriptor instead.
+func (*RaftRemoveServerResponse) Descriptor() ([]byte, []int) {
+	return file_master_proto_rawDescGZIP(), []int{48}
+}
+
+type RaftListClusterServersRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+}
+
+func (x *RaftListClusterServersRequest) Reset() {
+	*x = RaftListClusterServersRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_master_proto_msgTypes[49]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *RaftListClusterServersRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*RaftListClusterServersRequest) ProtoMessage() {}
+
+func (x *RaftListClusterServersRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_master_proto_msgTypes[49]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use RaftListClusterServersRequest.ProtoReflect.Descriptor instead.
+func (*RaftListClusterServersRequest) Descriptor() ([]byte, []int) {
+	return file_master_proto_rawDescGZIP(), []int{49}
+}
+
+type RaftListClusterServersResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	ClusterServers []*RaftListClusterServersResponse_ClusterServers `protobuf:"bytes,1,rep,name=cluster_servers,json=clusterServers,proto3" json:"cluster_servers,omitempty"`
+}
+
+func (x *RaftListClusterServersResponse) Reset() {
+	*x = RaftListClusterServersResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_master_proto_msgTypes[50]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *RaftListClusterServersResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*RaftListClusterServersResponse) ProtoMessage() {}
+
+func (x *RaftListClusterServersResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_master_proto_msgTypes[50]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use RaftListClusterServersResponse.ProtoReflect.Descriptor instead.
+func (*RaftListClusterServersResponse) Descriptor() ([]byte, []int) {
+	return file_master_proto_rawDescGZIP(), []int{50}
+}
+
+func (x *RaftListClusterServersResponse) GetClusterServers() []*RaftListClusterServersResponse_ClusterServers {
+	if x != nil {
+		return x.ClusterServers
+	}
+	return nil
+}
+
 type SuperBlockExtra_ErasureCoding struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@ -2990,7 +3269,7 @@ type SuperBlockExtra_ErasureCoding struct {
 func (x *SuperBlockExtra_ErasureCoding) Reset() {
 	*x = SuperBlockExtra_ErasureCoding{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_master_proto_msgTypes[47]
+		mi := &file_master_proto_msgTypes[53]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@ -3003,7 +3282,7 @@ func (x *SuperBlockExtra_ErasureCoding) String() string {
 func (*SuperBlockExtra_ErasureCoding) ProtoMessage() {}

 func (x *SuperBlockExtra_ErasureCoding) ProtoReflect() protoreflect.Message {
-	mi := &file_master_proto_msgTypes[47]
+	mi := &file_master_proto_msgTypes[53]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@ -3054,7 +3333,7 @@ type LookupVolumeResponse_VolumeIdLocation struct {
 func (x *LookupVolumeResponse_VolumeIdLocation) Reset() {
 	*x = LookupVolumeResponse_VolumeIdLocation{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_master_proto_msgTypes[48]
+		mi := &file_master_proto_msgTypes[54]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@ -3067,7 +3346,7 @@ func (x *LookupVolumeResponse_VolumeIdLocation) String() string {
 func (*LookupVolumeResponse_VolumeIdLocation) ProtoMessage() {}

 func (x *LookupVolumeResponse_VolumeIdLocation) ProtoReflect() protoreflect.Message {
-	mi := &file_master_proto_msgTypes[48]
+	mi := &file_master_proto_msgTypes[54]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@ -3123,7 +3402,7 @@ type LookupEcVolumeResponse_EcShardIdLocation struct {
 func (x *LookupEcVolumeResponse_EcShardIdLocation) Reset() {
 	*x = LookupEcVolumeResponse_EcShardIdLocation{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_master_proto_msgTypes[53]
+		mi := &file_master_proto_msgTypes[59]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@ -3136,7 +3415,7 @@ func (x *LookupEcVolumeResponse_EcShardIdLocation) String() string {
 func (*LookupEcVolumeResponse_EcShardIdLocation) ProtoMessage() {}

 func (x *LookupEcVolumeResponse_EcShardIdLocation) ProtoReflect() protoreflect.Message {
-	mi := &file_master_proto_msgTypes[53]
+	mi := &file_master_proto_msgTypes[59]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@ -3179,7 +3458,7 @@ type ListClusterNodesResponse_ClusterNode struct {
 func (x *ListClusterNodesResponse_ClusterNode) Reset() {
 	*x = ListClusterNodesResponse_ClusterNode{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_master_proto_msgTypes[54]
+		mi := &file_master_proto_msgTypes[60]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@ -3192,7 +3471,7 @@ func (x *ListClusterNodesResponse_ClusterNode) String() string {
 func (*ListClusterNodesResponse_ClusterNode) ProtoMessage() {}

 func (x *ListClusterNodesResponse_ClusterNode) ProtoReflect() protoreflect.Message {
-	mi := &file_master_proto_msgTypes[54]
+	mi := &file_master_proto_msgTypes[60]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@ -3229,6 +3508,69 @@ func (x *ListClusterNodesResponse_ClusterNode) GetIsLeader() bool {
 	return false
 }

+type RaftListClusterServersResponse_ClusterServers struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Id       string `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
+	Address  string `protobuf:"bytes,2,opt,name=address,proto3" json:"address,omitempty"`
+	Suffrage string `protobuf:"bytes,3,opt,name=suffrage,proto3" json:"suffrage,omitempty"` //
+}
+
+func (x *RaftListClusterServersResponse_ClusterServers) Reset() {
+	*x = RaftListClusterServersResponse_ClusterServers{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_master_proto_msgTypes[61]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *RaftListClusterServersResponse_ClusterServers) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*RaftListClusterServersResponse_ClusterServers) ProtoMessage() {}
+
+func (x *RaftListClusterServersResponse_ClusterServers) ProtoReflect() protoreflect.Message {
+	mi := &file_master_proto_msgTypes[61]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use RaftListClusterServersResponse_ClusterServers.ProtoReflect.Descriptor instead.
+func (*RaftListClusterServersResponse_ClusterServers) Descriptor() ([]byte, []int) {
+	return file_master_proto_rawDescGZIP(), []int{50, 0}
+}
+
+func (x *RaftListClusterServersResponse_ClusterServers) GetId() string {
+	if x != nil {
+		return x.Id
+	}
+	return ""
+}
+
+func (x *RaftListClusterServersResponse_ClusterServers) GetAddress() string {
+	if x != nil {
+		return x.Address
+	}
+	return ""
+}
+
+func (x *RaftListClusterServersResponse_ClusterServers) GetSuffrage() string {
+	if x != nil {
+		return x.Suffrage
+	}
+	return ""
+}
+
 var File_master_proto protoreflect.FileDescriptor

 var file_master_proto_rawDesc = []byte{
@ -3726,91 +4068,138 @@ var file_master_proto_rawDesc = []byte{
 	0x65, 0x74, 0x12, 0x1f, 0x0a, 0x0b, 0x74, 0x61, 0x72, 0x67, 0x65, 0x74, 0x5f, 0x74, 0x79, 0x70,
 	0x65, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x0a, 0x74, 0x61, 0x72, 0x67, 0x65, 0x74, 0x54,
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-	0x61, 0x73, 0x74, 0x65, 0x72, 0x5f, 0x70, 0x62, 0x2e, 0x4b, 0x65, 0x65, 0x70, 0x43, 0x6f, 0x6e,
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 }

 var (
@ -3825,7 +4214,7 @@ func file_master_proto_rawDescGZIP() []byte {
 	return file_master_proto_rawDescData
 }

-var file_master_proto_msgTypes = make([]protoimpl.MessageInfo, 55)
+var file_master_proto_msgTypes = make([]protoimpl.MessageInfo, 62)
 var file_master_proto_goTypes = []interface{}{
 	(*Heartbeat)(nil),                             // 0: master_pb.Heartbeat
 	(*HeartbeatResponse)(nil),                     // 1: master_pb.HeartbeatResponse
@ -3872,16 +4261,23 @@ var file_master_proto_goTypes = []interface{}{
 	(*ReleaseAdminTokenResponse)(nil),             // 42: master_pb.ReleaseAdminTokenResponse
 	(*PingRequest)(nil),                           // 43: master_pb.PingRequest
 	(*PingResponse)(nil),                          // 44: master_pb.PingResponse
-	nil,                                           // 45: master_pb.Heartbeat.MaxVolumeCountsEntry
-	nil,                                           // 46: master_pb.StorageBackend.PropertiesEntry
-	(*SuperBlockExtra_ErasureCoding)(nil),         // 47: master_pb.SuperBlockExtra.ErasureCoding
-	(*LookupVolumeResponse_VolumeIdLocation)(nil), // 48: master_pb.LookupVolumeResponse.VolumeIdLocation
-	nil, // 49: master_pb.DataNodeInfo.DiskInfosEntry
-	nil, // 50: master_pb.RackInfo.DiskInfosEntry
-	nil, // 51: master_pb.DataCenterInfo.DiskInfosEntry
-	nil, // 52: master_pb.TopologyInfo.DiskInfosEntry
-	(*LookupEcVolumeResponse_EcShardIdLocation)(nil), // 53: master_pb.LookupEcVolumeResponse.EcShardIdLocation
-	(*ListClusterNodesResponse_ClusterNode)(nil),     // 54: master_pb.ListClusterNodesResponse.ClusterNode
+	(*RaftAddServerRequest)(nil),                  // 45: master_pb.RaftAddServerRequest
+	(*RaftAddServerResponse)(nil),                 // 46: master_pb.RaftAddServerResponse
+	(*RaftRemoveServerRequest)(nil),               // 47: master_pb.RaftRemoveServerRequest
+	(*RaftRemoveServerResponse)(nil),              // 48: master_pb.RaftRemoveServerResponse
+	(*RaftListClusterServersRequest)(nil),         // 49: master_pb.RaftListClusterServersRequest
+	(*RaftListClusterServersResponse)(nil),        // 50: master_pb.RaftListClusterServersResponse
+	nil,                                           // 51: master_pb.Heartbeat.MaxVolumeCountsEntry
+	nil,                                           // 52: master_pb.StorageBackend.PropertiesEntry
+	(*SuperBlockExtra_ErasureCoding)(nil),         // 53: master_pb.SuperBlockExtra.ErasureCoding
+	(*LookupVolumeResponse_VolumeIdLocation)(nil), // 54: master_pb.LookupVolumeResponse.VolumeIdLocation
+	nil, // 55: master_pb.DataNodeInfo.DiskInfosEntry
+	nil, // 56: master_pb.RackInfo.DiskInfosEntry
+	nil, // 57: master_pb.DataCenterInfo.DiskInfosEntry
+	nil, // 58: master_pb.TopologyInfo.DiskInfosEntry
+	(*LookupEcVolumeResponse_EcShardIdLocation)(nil),      // 59: master_pb.LookupEcVolumeResponse.EcShardIdLocation
+	(*ListClusterNodesResponse_ClusterNode)(nil),          // 60: master_pb.ListClusterNodesResponse.ClusterNode
+	(*RaftListClusterServersResponse_ClusterServers)(nil), // 61: master_pb.RaftListClusterServersResponse.ClusterServers
 }
 var file_master_proto_depIdxs = []int32{
 	2,  // 0: master_pb.Heartbeat.volumes:type_name -> master_pb.VolumeInformationMessage
@ -3890,70 +4286,77 @@ var file_master_proto_depIdxs = []int32{
 	4,  // 3: master_pb.Heartbeat.ec_shards:type_name -> master_pb.VolumeEcShardInformationMessage
 	4,  // 4: master_pb.Heartbeat.new_ec_shards:type_name -> master_pb.VolumeEcShardInformationMessage
 	4,  // 5: master_pb.Heartbeat.deleted_ec_shards:type_name -> master_pb.VolumeEcShardInformationMessage
-	45, // 6: master_pb.Heartbeat.max_volume_counts:type_name -> master_pb.Heartbeat.MaxVolumeCountsEntry
+	51, // 6: master_pb.Heartbeat.max_volume_counts:type_name -> master_pb.Heartbeat.MaxVolumeCountsEntry
 	5,  // 7: master_pb.HeartbeatResponse.storage_backends:type_name -> master_pb.StorageBackend
-	46, // 8: master_pb.StorageBackend.properties:type_name -> master_pb.StorageBackend.PropertiesEntry
-	47, // 9: master_pb.SuperBlockExtra.erasure_coding:type_name -> master_pb.SuperBlockExtra.ErasureCoding
+	52, // 8: master_pb.StorageBackend.properties:type_name -> master_pb.StorageBackend.PropertiesEntry
+	53, // 9: master_pb.SuperBlockExtra.erasure_coding:type_name -> master_pb.SuperBlockExtra.ErasureCoding
 	9,  // 10: master_pb.KeepConnectedResponse.volume_location:type_name -> master_pb.VolumeLocation
 	10, // 11: master_pb.KeepConnectedResponse.cluster_node_update:type_name -> master_pb.ClusterNodeUpdate
-	48, // 12: master_pb.LookupVolumeResponse.volume_id_locations:type_name -> master_pb.LookupVolumeResponse.VolumeIdLocation
+	54, // 12: master_pb.LookupVolumeResponse.volume_id_locations:type_name -> master_pb.LookupVolumeResponse.VolumeIdLocation
 	14, // 13: master_pb.AssignResponse.replicas:type_name -> master_pb.Location
 	14, // 14: master_pb.AssignResponse.location:type_name -> master_pb.Location
 	19, // 15: master_pb.CollectionListResponse.collections:type_name -> master_pb.Collection
 	2,  // 16: master_pb.DiskInfo.volume_infos:type_name -> master_pb.VolumeInformationMessage
 	4,  // 17: master_pb.DiskInfo.ec_shard_infos:type_name -> master_pb.VolumeEcShardInformationMessage
-	49, // 18: master_pb.DataNodeInfo.diskInfos:type_name -> master_pb.DataNodeInfo.DiskInfosEntry
+	55, // 18: master_pb.DataNodeInfo.diskInfos:type_name -> master_pb.DataNodeInfo.DiskInfosEntry
 	25, // 19: master_pb.RackInfo.data_node_infos:type_name -> master_pb.DataNodeInfo
-	50, // 20: master_pb.RackInfo.diskInfos:type_name -> master_pb.RackInfo.DiskInfosEntry
+	56, // 20: master_pb.RackInfo.diskInfos:type_name -> master_pb.RackInfo.DiskInfosEntry
 	26, // 21: master_pb.DataCenterInfo.rack_infos:type_name -> master_pb.RackInfo
-	51, // 22: master_pb.DataCenterInfo.diskInfos:type_name -> master_pb.DataCenterInfo.DiskInfosEntry
+	57, // 22: master_pb.DataCenterInfo.diskInfos:type_name -> master_pb.DataCenterInfo.DiskInfosEntry
 	27, // 23: master_pb.TopologyInfo.data_center_infos:type_name -> master_pb.DataCenterInfo
-	52, // 24: master_pb.TopologyInfo.diskInfos:type_name -> master_pb.TopologyInfo.DiskInfosEntry
+	58, // 24: master_pb.TopologyInfo.diskInfos:type_name -> master_pb.TopologyInfo.DiskInfosEntry
 	28, // 25: master_pb.VolumeListResponse.topology_info:type_name -> master_pb.TopologyInfo
-	53, // 26: master_pb.LookupEcVolumeResponse.shard_id_locations:type_name -> master_pb.LookupEcVolumeResponse.EcShardIdLocation
+	59, // 26: master_pb.LookupEcVolumeResponse.shard_id_locations:type_name -> master_pb.LookupEcVolumeResponse.EcShardIdLocation
 	5,  // 27: master_pb.GetMasterConfigurationResponse.storage_backends:type_name -> master_pb.StorageBackend
-	54, // 28: master_pb.ListClusterNodesResponse.cluster_nodes:type_name -> master_pb.ListClusterNodesResponse.ClusterNode
-	14, // 29: master_pb.LookupVolumeResponse.VolumeIdLocation.locations:type_name -> master_pb.Location
-	24, // 30: master_pb.DataNodeInfo.DiskInfosEntry.value:type_name -> master_pb.DiskInfo
-	24, // 31: master_pb.RackInfo.DiskInfosEntry.value:type_name -> master_pb.DiskInfo
-	24, // 32: master_pb.DataCenterInfo.DiskInfosEntry.value:type_name -> master_pb.DiskInfo
-	24, // 33: master_pb.TopologyInfo.DiskInfosEntry.value:type_name -> master_pb.DiskInfo
-	14, // 34: master_pb.LookupEcVolumeResponse.EcShardIdLocation.locations:type_name -> master_pb.Location
-	0,  // 35: master_pb.Seaweed.SendHeartbeat:input_type -> master_pb.Heartbeat
-	8,  // 36: master_pb.Seaweed.KeepConnected:input_type -> master_pb.KeepConnectedRequest
-	12, // 37: master_pb.Seaweed.LookupVolume:input_type -> master_pb.LookupVolumeRequest
-	15, // 38: master_pb.Seaweed.Assign:input_type -> master_pb.AssignRequest
-	17, // 39: master_pb.Seaweed.Statistics:input_type -> master_pb.StatisticsRequest
-	20, // 40: master_pb.Seaweed.CollectionList:input_type -> master_pb.CollectionListRequest
-	22, // 41: master_pb.Seaweed.CollectionDelete:input_type -> master_pb.CollectionDeleteRequest
-	29, // 42: master_pb.Seaweed.VolumeList:input_type -> master_pb.VolumeListRequest
-	31, // 43: master_pb.Seaweed.LookupEcVolume:input_type -> master_pb.LookupEcVolumeRequest
-	33, // 44: master_pb.Seaweed.VacuumVolume:input_type -> master_pb.VacuumVolumeRequest
-	35, // 45: master_pb.Seaweed.GetMasterConfiguration:input_type -> master_pb.GetMasterConfigurationRequest
-	37, // 46: master_pb.Seaweed.ListClusterNodes:input_type -> master_pb.ListClusterNodesRequest
-	39, // 47: master_pb.Seaweed.LeaseAdminToken:input_type -> master_pb.LeaseAdminTokenRequest
-	41, // 48: master_pb.Seaweed.ReleaseAdminToken:input_type -> master_pb.ReleaseAdminTokenRequest
-	43, // 49: master_pb.Seaweed.Ping:input_type -> master_pb.PingRequest
-	1,  // 50: master_pb.Seaweed.SendHeartbeat:output_type -> master_pb.HeartbeatResponse
-	11, // 51: master_pb.Seaweed.KeepConnected:output_type -> master_pb.KeepConnectedResponse
-	13, // 52: master_pb.Seaweed.LookupVolume:output_type -> master_pb.LookupVolumeResponse
-	16, // 53: master_pb.Seaweed.Assign:output_type -> master_pb.AssignResponse
-	18, // 54: master_pb.Seaweed.Statistics:output_type -> master_pb.StatisticsResponse
-	21, // 55: master_pb.Seaweed.CollectionList:output_type -> master_pb.CollectionListResponse
-	23, // 56: master_pb.Seaweed.CollectionDelete:output_type -> master_pb.CollectionDeleteResponse
-	30, // 57: master_pb.Seaweed.VolumeList:output_type -> master_pb.VolumeListResponse
-	32, // 58: master_pb.Seaweed.LookupEcVolume:output_type -> master_pb.LookupEcVolumeResponse
-	34, // 59: master_pb.Seaweed.VacuumVolume:output_type -> master_pb.VacuumVolumeResponse
-	36, // 60: master_pb.Seaweed.GetMasterConfiguration:output_type -> master_pb.GetMasterConfigurationResponse
-	38, // 61: master_pb.Seaweed.ListClusterNodes:output_type -> master_pb.ListClusterNodesResponse
-	40, // 62: master_pb.Seaweed.LeaseAdminToken:output_type -> master_pb.LeaseAdminTokenResponse
-	42, // 63: master_pb.Seaweed.ReleaseAdminToken:output_type -> master_pb.ReleaseAdminTokenResponse
-	44, // 64: master_pb.Seaweed.Ping:output_type -> master_pb.PingResponse
-	50, // [50:65] is the sub-list for method output_type
-	35, // [35:50] is the sub-list for method input_type
-	35, // [35:35] is the sub-list for extension type_name
-	35, // [35:35] is the sub-list for extension extendee
-	0,  // [0:35] is the sub-list for field type_name
+	60, // 28: master_pb.ListClusterNodesResponse.cluster_nodes:type_name -> master_pb.ListClusterNodesResponse.ClusterNode
+	61, // 29: master_pb.RaftListClusterServersResponse.cluster_servers:type_name -> master_pb.RaftListClusterServersResponse.ClusterServers
+	14, // 30: master_pb.LookupVolumeResponse.VolumeIdLocation.locations:type_name -> master_pb.Location
+	24, // 31: master_pb.DataNodeInfo.DiskInfosEntry.value:type_name -> master_pb.DiskInfo
+	24, // 32: master_pb.RackInfo.DiskInfosEntry.value:type_name -> master_pb.DiskInfo
+	24, // 33: master_pb.DataCenterInfo.DiskInfosEntry.value:type_name -> master_pb.DiskInfo
+	24, // 34: master_pb.TopologyInfo.DiskInfosEntry.value:type_name -> master_pb.DiskInfo
+	14, // 35: master_pb.LookupEcVolumeResponse.EcShardIdLocation.locations:type_name -> master_pb.Location
+	0,  // 36: master_pb.Seaweed.SendHeartbeat:input_type -> master_pb.Heartbeat
+	8,  // 37: master_pb.Seaweed.KeepConnected:input_type -> master_pb.KeepConnectedRequest
+	12, // 38: master_pb.Seaweed.LookupVolume:input_type -> master_pb.LookupVolumeRequest
+	15, // 39: master_pb.Seaweed.Assign:input_type -> master_pb.AssignRequest
+	17, // 40: master_pb.Seaweed.Statistics:input_type -> master_pb.StatisticsRequest
+	20, // 41: master_pb.Seaweed.CollectionList:input_type -> master_pb.CollectionListRequest
+	22, // 42: master_pb.Seaweed.CollectionDelete:input_type -> master_pb.CollectionDeleteRequest
+	29, // 43: master_pb.Seaweed.VolumeList:input_type -> master_pb.VolumeListRequest
+	31, // 44: master_pb.Seaweed.LookupEcVolume:input_type -> master_pb.LookupEcVolumeRequest
+	33, // 45: master_pb.Seaweed.VacuumVolume:input_type -> master_pb.VacuumVolumeRequest
+	35, // 46: master_pb.Seaweed.GetMasterConfiguration:input_type -> master_pb.GetMasterConfigurationRequest
+	37, // 47: master_pb.Seaweed.ListClusterNodes:input_type -> master_pb.ListClusterNodesRequest
+	39, // 48: master_pb.Seaweed.LeaseAdminToken:input_type -> master_pb.LeaseAdminTokenRequest
+	41, // 49: master_pb.Seaweed.ReleaseAdminToken:input_type -> master_pb.ReleaseAdminTokenRequest
+	43, // 50: master_pb.Seaweed.Ping:input_type -> master_pb.PingRequest
+	49, // 51: master_pb.Seaweed.RaftListClusterServers:input_type -> master_pb.RaftListClusterServersRequest
+	45, // 52: master_pb.Seaweed.RaftAddServer:input_type -> master_pb.RaftAddServerRequest
+	47, // 53: master_pb.Seaweed.RaftRemoveServer:input_type -> master_pb.RaftRemoveServerRequest
+	1,  // 54: master_pb.Seaweed.SendHeartbeat:output_type -> master_pb.HeartbeatResponse
+	11, // 55: master_pb.Seaweed.KeepConnected:output_type -> master_pb.KeepConnectedResponse
+	13, // 56: master_pb.Seaweed.LookupVolume:output_type -> master_pb.LookupVolumeResponse
+	16, // 57: master_pb.Seaweed.Assign:output_type -> master_pb.AssignResponse
+	18, // 58: master_pb.Seaweed.Statistics:output_type -> master_pb.StatisticsResponse
+	21, // 59: master_pb.Seaweed.CollectionList:output_type -> master_pb.CollectionListResponse
+	23, // 60: master_pb.Seaweed.CollectionDelete:output_type -> master_pb.CollectionDeleteResponse
+	30, // 61: master_pb.Seaweed.VolumeList:output_type -> master_pb.VolumeListResponse
+	32, // 62: master_pb.Seaweed.LookupEcVolume:output_type -> master_pb.LookupEcVolumeResponse
+	34, // 63: master_pb.Seaweed.VacuumVolume:output_type -> master_pb.VacuumVolumeResponse
+	36, // 64: master_pb.Seaweed.GetMasterConfiguration:output_type -> master_pb.GetMasterConfigurationResponse
+	38, // 65: master_pb.Seaweed.ListClusterNodes:output_type -> master_pb.ListClusterNodesResponse
+	40, // 66: master_pb.Seaweed.LeaseAdminToken:output_type -> master_pb.LeaseAdminTokenResponse
+	42, // 67: master_pb.Seaweed.ReleaseAdminToken:output_type -> master_pb.ReleaseAdminTokenResponse
+	44, // 68: master_pb.Seaweed.Ping:output_type -> master_pb.PingResponse
+	50, // 69: master_pb.Seaweed.RaftListClusterServers:output_type -> master_pb.RaftListClusterServersResponse
+	46, // 70: master_pb.Seaweed.RaftAddServer:output_type -> master_pb.RaftAddServerResponse
+	48, // 71: master_pb.Seaweed.RaftRemoveServer:output_type -> master_pb.RaftRemoveServerResponse
+	54, // [54:72] is the sub-list for method output_type
+	36, // [36:54] is the sub-list for method input_type
+	36, // [36:36] is the sub-list for extension type_name
+	36, // [36:36] is the sub-list for extension extendee
+	0,  // [0:36] is the sub-list for field type_name
 }

 func init() { file_master_proto_init() }
@ -4502,8 +4905,32 @@ func file_master_proto_init() {
 				return nil
 			}
 		}
+		file_master_proto_msgTypes[45].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*RaftAddServerRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_master_proto_msgTypes[46].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*RaftAddServerResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
 		file_master_proto_msgTypes[47].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*SuperBlockExtra_ErasureCoding); i {
+			switch v := v.(*RaftRemoveServerRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@ -4515,7 +4942,31 @@ func file_master_proto_init() {
 			}
 		}
 		file_master_proto_msgTypes[48].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*LookupVolumeResponse_VolumeIdLocation); i {
+			switch v := v.(*RaftRemoveServerResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_master_proto_msgTypes[49].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*RaftListClusterServersRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_master_proto_msgTypes[50].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*RaftListClusterServersResponse); i {
 			case 0:
 				return &v.state
 			case 1:
@ -4527,7 +4978,7 @@ func file_master_proto_init() {
 			}
 		}
 		file_master_proto_msgTypes[53].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*LookupEcVolumeResponse_EcShardIdLocation); i {
+			switch v := v.(*SuperBlockExtra_ErasureCoding); i {
 			case 0:
 				return &v.state
 			case 1:
@ -4539,6 +4990,30 @@ func file_master_proto_init() {
 			}
 		}
 		file_master_proto_msgTypes[54].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*LookupVolumeResponse_VolumeIdLocation); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_master_proto_msgTypes[59].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*LookupEcVolumeResponse_EcShardIdLocation); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_master_proto_msgTypes[60].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*ListClusterNodesResponse_ClusterNode); i {
 			case 0:
 				return &v.state
@ -4550,6 +5025,18 @@ func file_master_proto_init() {
 				return nil
 			}
 		}
+		file_master_proto_msgTypes[61].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*RaftListClusterServersResponse_ClusterServers); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
 	}
 	type x struct{}
 	out := protoimpl.TypeBuilder{
@ -4557,7 +5044,7 @@ func file_master_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_master_proto_rawDesc,
 			NumEnums:      0,
-			NumMessages:   55,
+			NumMessages:   62,
 			NumExtensions: 0,
 			NumServices:   1,
 		},
--- a/weed/pb/master_pb/master_grpc.pb.go
+++ b/weed/pb/master_pb/master_grpc.pb.go
@ -11,7 +11,6 @@ import (

 // This is a compile-time assertion to ensure that this generated file
 // is compatible with the grpc package it is being compiled against.
-// Requires gRPC-Go v1.32.0 or later.
 const _ = grpc.SupportPackageIsVersion7

 // SeaweedClient is the client API for Seaweed service.
@ -33,6 +32,9 @@ type SeaweedClient interface {
 	LeaseAdminToken(ctx context.Context, in *LeaseAdminTokenRequest, opts ...grpc.CallOption) (*LeaseAdminTokenResponse, error)
 	ReleaseAdminToken(ctx context.Context, in *ReleaseAdminTokenRequest, opts ...grpc.CallOption) (*ReleaseAdminTokenResponse, error)
 	Ping(ctx context.Context, in *PingRequest, opts ...grpc.CallOption) (*PingResponse, error)
+	RaftListClusterServers(ctx context.Context, in *RaftListClusterServersRequest, opts ...grpc.CallOption) (*RaftListClusterServersResponse, error)
+	RaftAddServer(ctx context.Context, in *RaftAddServerRequest, opts ...grpc.CallOption) (*RaftAddServerResponse, error)
+	RaftRemoveServer(ctx context.Context, in *RaftRemoveServerRequest, opts ...grpc.CallOption) (*RaftRemoveServerResponse, error)
 }

 type seaweedClient struct {
@ -222,6 +224,33 @@ func (c *seaweedClient) Ping(ctx context.Context, in *PingRequest, opts ...grpc.
 	return out, nil
 }

+func (c *seaweedClient) RaftListClusterServers(ctx context.Context, in *RaftListClusterServersRequest, opts ...grpc.CallOption) (*RaftListClusterServersResponse, error) {
+	out := new(RaftListClusterServersResponse)
+	err := c.cc.Invoke(ctx, "/master_pb.Seaweed/RaftListClusterServers", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *seaweedClient) RaftAddServer(ctx context.Context, in *RaftAddServerRequest, opts ...grpc.CallOption) (*RaftAddServerResponse, error) {
+	out := new(RaftAddServerResponse)
+	err := c.cc.Invoke(ctx, "/master_pb.Seaweed/RaftAddServer", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *seaweedClient) RaftRemoveServer(ctx context.Context, in *RaftRemoveServerRequest, opts ...grpc.CallOption) (*RaftRemoveServerResponse, error) {
+	out := new(RaftRemoveServerResponse)
+	err := c.cc.Invoke(ctx, "/master_pb.Seaweed/RaftRemoveServer", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
 // SeaweedServer is the server API for Seaweed service.
 // All implementations must embed UnimplementedSeaweedServer
 // for forward compatibility
@ -241,6 +270,9 @@ type SeaweedServer interface {
 	LeaseAdminToken(context.Context, *LeaseAdminTokenRequest) (*LeaseAdminTokenResponse, error)
 	ReleaseAdminToken(context.Context, *ReleaseAdminTokenRequest) (*ReleaseAdminTokenResponse, error)
 	Ping(context.Context, *PingRequest) (*PingResponse, error)
+	RaftListClusterServers(context.Context, *RaftListClusterServersRequest) (*RaftListClusterServersResponse, error)
+	RaftAddServer(context.Context, *RaftAddServerRequest) (*RaftAddServerResponse, error)
+	RaftRemoveServer(context.Context, *RaftRemoveServerRequest) (*RaftRemoveServerResponse, error)
 	mustEmbedUnimplementedSeaweedServer()
 }

@ -293,6 +325,15 @@ func (UnimplementedSeaweedServer) ReleaseAdminToken(context.Context, *ReleaseAdm
 func (UnimplementedSeaweedServer) Ping(context.Context, *PingRequest) (*PingResponse, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method Ping not implemented")
 }
+func (UnimplementedSeaweedServer) RaftListClusterServers(context.Context, *RaftListClusterServersRequest) (*RaftListClusterServersResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method RaftListClusterServers not implemented")
+}
+func (UnimplementedSeaweedServer) RaftAddServer(context.Context, *RaftAddServerRequest) (*RaftAddServerResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method RaftAddServer not implemented")
+}
+func (UnimplementedSeaweedServer) RaftRemoveServer(context.Context, *RaftRemoveServerRequest) (*RaftRemoveServerResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method RaftRemoveServer not implemented")
+}
 func (UnimplementedSeaweedServer) mustEmbedUnimplementedSeaweedServer() {}

 // UnsafeSeaweedServer may be embedded to opt out of forward compatibility for this service.
@ -592,6 +633,60 @@ func _Seaweed_Ping_Handler(srv interface{}, ctx context.Context, dec func(interf
 	return interceptor(ctx, in, info, handler)
 }

+func _Seaweed_RaftListClusterServers_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(RaftListClusterServersRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(SeaweedServer).RaftListClusterServers(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/master_pb.Seaweed/RaftListClusterServers",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(SeaweedServer).RaftListClusterServers(ctx, req.(*RaftListClusterServersRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _Seaweed_RaftAddServer_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(RaftAddServerRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(SeaweedServer).RaftAddServer(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/master_pb.Seaweed/RaftAddServer",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(SeaweedServer).RaftAddServer(ctx, req.(*RaftAddServerRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _Seaweed_RaftRemoveServer_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(RaftRemoveServerRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(SeaweedServer).RaftRemoveServer(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/master_pb.Seaweed/RaftRemoveServer",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(SeaweedServer).RaftRemoveServer(ctx, req.(*RaftRemoveServerRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
 // Seaweed_ServiceDesc is the grpc.ServiceDesc for Seaweed service.
 // It's only intended for direct use with grpc.RegisterService,
 // and not to be introspected or modified (even as a copy)
@ -651,6 +746,18 @@ var Seaweed_ServiceDesc = grpc.ServiceDesc{
 			MethodName: "Ping",
 			Handler:    _Seaweed_Ping_Handler,
 		},
+		{
+			MethodName: "RaftListClusterServers",
+			Handler:    _Seaweed_RaftListClusterServers_Handler,
+		},
+		{
+			MethodName: "RaftAddServer",
+			Handler:    _Seaweed_RaftAddServer_Handler,
+		},
+		{
+			MethodName: "RaftRemoveServer",
+			Handler:    _Seaweed_RaftRemoveServer_Handler,
+		},
 	},
 	Streams: []grpc.StreamDesc{
 		{
--- a/weed/pb/messaging_pb/messaging.pb.go
+++ b/weed/pb/messaging_pb/messaging.pb.go
@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.26.0
-// 	protoc        v3.17.3
+// 	protoc-gen-go v1.28.0
+// 	protoc        v3.19.4
 // source: messaging.proto

 package messaging_pb
--- a/weed/pb/messaging_pb/messaging_grpc.pb.go
+++ b/weed/pb/messaging_pb/messaging_grpc.pb.go
@ -11,7 +11,6 @@ import (

 // This is a compile-time assertion to ensure that this generated file
 // is compatible with the grpc package it is being compiled against.
-// Requires gRPC-Go v1.32.0 or later.
 const _ = grpc.SupportPackageIsVersion7

 // SeaweedMessagingClient is the client API for SeaweedMessaging service.
--- a/weed/pb/mount_pb/mount.pb.go
+++ b/weed/pb/mount_pb/mount.pb.go
@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.26.0
-// 	protoc        v3.17.3
+// 	protoc-gen-go v1.28.0
+// 	protoc        v3.19.4
 // source: mount.proto

 package mount_pb
--- a/weed/pb/mount_pb/mount_grpc.pb.go
+++ b/weed/pb/mount_pb/mount_grpc.pb.go
@ -11,7 +11,6 @@ import (

 // This is a compile-time assertion to ensure that this generated file
 // is compatible with the grpc package it is being compiled against.
-// Requires gRPC-Go v1.32.0 or later.
 const _ = grpc.SupportPackageIsVersion7

 // SeaweedMountClient is the client API for SeaweedMount service.
--- a/weed/pb/remote_pb/remote.pb.go
+++ b/weed/pb/remote_pb/remote.pb.go
@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.26.0
-// 	protoc        v3.17.3
+// 	protoc-gen-go v1.28.0
+// 	protoc        v3.19.4
 // source: remote.proto

 package remote_pb
--- a/weed/pb/volume_server_pb/volume_server.pb.go
+++ b/weed/pb/volume_server_pb/volume_server.pb.go
@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.26.0
-// 	protoc        v3.17.3
+// 	protoc-gen-go v1.28.0
+// 	protoc        v3.19.4
 // source: volume_server.proto

 package volume_server_pb
--- a/weed/pb/volume_server_pb/volume_server_grpc.pb.go
+++ b/weed/pb/volume_server_pb/volume_server_grpc.pb.go
@ -11,7 +11,6 @@ import (

 // This is a compile-time assertion to ensure that this generated file
 // is compatible with the grpc package it is being compiled against.
-// Requires gRPC-Go v1.32.0 or later.
 const _ = grpc.SupportPackageIsVersion7

 // VolumeServerClient is the client API for VolumeServer service.
--- a/weed/server/master_grpc_server_raft.go
+++ b/weed/server/master_grpc_server_raft.go
@ -0,0 +1,66 @@
+package weed_server
+
+import (
+	"context"
+	"fmt"
+	"github.com/chrislusf/seaweedfs/weed/cluster"
+	"github.com/chrislusf/seaweedfs/weed/pb/master_pb"
+	"github.com/hashicorp/raft"
+)
+
+func (ms *MasterServer) RaftListClusterServers(ctx context.Context, req *master_pb.RaftListClusterServersRequest) (*master_pb.RaftListClusterServersResponse, error) {
+	resp := &master_pb.RaftListClusterServersResponse{}
+
+	servers := ms.Topo.HashicorpRaft.GetConfiguration().Configuration().Servers
+
+	for _, server := range servers {
+		resp.ClusterServers = append(resp.ClusterServers, &master_pb.RaftListClusterServersResponse_ClusterServers{
+			Id:       string(server.ID),
+			Address:  string(server.Address),
+			Suffrage: server.Suffrage.String(),
+		})
+	}
+	return resp, nil
+}
+
+func (ms *MasterServer) RaftAddServer(ctx context.Context, req *master_pb.RaftAddServerRequest) (*master_pb.RaftAddServerResponse, error) {
+	resp := &master_pb.RaftAddServerResponse{}
+	if ms.Topo.HashicorpRaft.State() != raft.Leader {
+		return nil, fmt.Errorf("raft add server %s failed: %s is no current leader", req.Id, ms.Topo.HashicorpRaft.String())
+	}
+
+	var idxFuture raft.IndexFuture
+	if req.Voter {
+		idxFuture = ms.Topo.HashicorpRaft.AddVoter(raft.ServerID(req.Id), raft.ServerAddress(req.Address), 0, 0)
+	} else {
+		idxFuture = ms.Topo.HashicorpRaft.AddNonvoter(raft.ServerID(req.Id), raft.ServerAddress(req.Address), 0, 0)
+	}
+
+	if err := idxFuture.Error(); err != nil {
+		return nil, err
+	}
+	return resp, nil
+}
+
+func (ms *MasterServer) RaftRemoveServer(ctx context.Context, req *master_pb.RaftRemoveServerRequest) (*master_pb.RaftRemoveServerResponse, error) {
+	resp := &master_pb.RaftRemoveServerResponse{}
+
+	if ms.Topo.HashicorpRaft.State() != raft.Leader {
+		return nil, fmt.Errorf("raft remove server %s failed: %s is no current leader", req.Id, ms.Topo.HashicorpRaft.String())
+	}
+
+	if !req.Force {
+		ms.clientChansLock.RLock()
+		_, ok := ms.clientChans[fmt.Sprintf("%s@%s", cluster.MasterType, req.Id)]
+		ms.clientChansLock.RUnlock()
+		if ok {
+			return resp, fmt.Errorf("raft remove server %s failed: client connection to master exists", req.Id)
+		}
+	}
+
+	idxFuture := ms.Topo.HashicorpRaft.RemoveServer(raft.ServerID(req.Id), 0, 0)
+	if err := idxFuture.Error(); err != nil {
+		return nil, err
+	}
+	return resp, nil
+}
--- a/weed/server/master_server.go
+++ b/weed/server/master_server.go
@ -1,6 +1,7 @@
 package weed_server

 import (
+	"context"
 	"fmt"
 	"github.com/chrislusf/seaweedfs/weed/stats"
 	"net/http"
@ -17,6 +18,7 @@ import (

 	"github.com/chrislusf/raft"
 	"github.com/gorilla/mux"
+	hashicorpRaft "github.com/hashicorp/raft"
 	"google.golang.org/grpc"

 	"github.com/chrislusf/seaweedfs/weed/glog"
@ -30,8 +32,9 @@ import (
 )

 const (
-	SequencerType        = "master.sequencer.type"
-	SequencerSnowflakeId = "master.sequencer.sequencer_snowflake_id"
+	SequencerType         = "master.sequencer.type"
+	SequencerSnowflakeId  = "master.sequencer.sequencer_snowflake_id"
+	RaftServerRemovalTime = 72 * time.Minute
 )

 type MasterOption struct {
@ -62,6 +65,9 @@ type MasterServer struct {

 	boundedLeaderChan chan int

+	onPeerUpdatDoneCn      chan string
+	onPeerUpdatDoneCnExist bool
+
 	// notifying clients
 	clientChansLock sync.RWMutex
 	clientChans     map[string]chan *master_pb.KeepConnectedResponse
@ -112,6 +118,9 @@ func NewMasterServer(r *mux.Router, option *MasterOption, peers map[string]pb.Se
 		Cluster:         cluster.NewCluster(),
 	}
 	ms.boundedLeaderChan = make(chan int, 16)
+	ms.onPeerUpdatDoneCn = make(chan string)
+
+	ms.MasterClient.OnPeerUpdate = ms.OnPeerUpdate

 	seq := ms.createSequencer(option)
 	if nil == seq {
@ -160,19 +169,41 @@ func NewMasterServer(r *mux.Router, option *MasterOption, peers map[string]pb.Se
 }

 func (ms *MasterServer) SetRaftServer(raftServer *RaftServer) {
-	ms.Topo.RaftServer = raftServer.raftServer
-	ms.Topo.RaftServer.AddEventListener(raft.LeaderChangeEventType, func(e raft.Event) {
-		glog.V(0).Infof("leader change event: %+v => %+v", e.PrevValue(), e.Value())
-		stats.MasterLeaderChangeCounter.WithLabelValues(fmt.Sprintf("%+v", e.Value())).Inc()
-		if ms.Topo.RaftServer.Leader() != "" {
-			glog.V(0).Infoln("[", ms.Topo.RaftServer.Name(), "]", ms.Topo.RaftServer.Leader(), "becomes leader.")
-		}
-	})
+	var raftServerName string
+	if raftServer.raftServer != nil {
+		ms.Topo.RaftServer = raftServer.raftServer
+		ms.Topo.RaftServer.AddEventListener(raft.LeaderChangeEventType, func(e raft.Event) {
+			glog.V(0).Infof("leader change event: %+v => %+v", e.PrevValue(), e.Value())
+			stats.MasterLeaderChangeCounter.WithLabelValues(fmt.Sprintf("%+v", e.Value())).Inc()
+			if ms.Topo.RaftServer.Leader() != "" {
+				glog.V(0).Infoln("[", ms.Topo.RaftServer.Name(), "]", ms.Topo.RaftServer.Leader(), "becomes leader.")
+			}
+		})
+		raftServerName = ms.Topo.RaftServer.Name()
+	} else if raftServer.RaftHashicorp != nil {
+		ms.Topo.HashicorpRaft = raftServer.RaftHashicorp
+		leaderCh := raftServer.RaftHashicorp.LeaderCh()
+		prevLeader := ms.Topo.HashicorpRaft.Leader()
+		go func() {
+			for {
+				select {
+				case isLeader := <-leaderCh:
+					leader := ms.Topo.HashicorpRaft.Leader()
+					glog.V(0).Infof("is leader %+v change event: %+v => %+v", isLeader, prevLeader, leader)
+					stats.MasterLeaderChangeCounter.WithLabelValues(fmt.Sprintf("%+v", leader)).Inc()
+					prevLeader = leader
+				}
+			}
+		}()
+		raftServerName = ms.Topo.HashicorpRaft.String()
+	}
 	if ms.Topo.IsLeader() {
-		glog.V(0).Infoln("[", ms.Topo.RaftServer.Name(), "]", "I am the leader!")
+		glog.V(0).Infoln("[", raftServerName, "]", "I am the leader!")
 	} else {
-		if ms.Topo.RaftServer.Leader() != "" {
+		if ms.Topo.RaftServer != nil && ms.Topo.RaftServer.Leader() != "" {
 			glog.V(0).Infoln("[", ms.Topo.RaftServer.Name(), "]", ms.Topo.RaftServer.Leader(), "is the leader.")
+		} else if ms.Topo.HashicorpRaft != nil && ms.Topo.HashicorpRaft.Leader() != "" {
+			glog.V(0).Infoln("[", ms.Topo.HashicorpRaft.String(), "]", ms.Topo.HashicorpRaft.Leader(), "is the leader.")
 		}
 	}
 }
@ -181,31 +212,38 @@ func (ms *MasterServer) proxyToLeader(f http.HandlerFunc) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
 		if ms.Topo.IsLeader() {
 			f(w, r)
-		} else if ms.Topo.RaftServer != nil && ms.Topo.RaftServer.Leader() != "" {
-			ms.boundedLeaderChan <- 1
-			defer func() { <-ms.boundedLeaderChan }()
-			targetUrl, err := url.Parse("http://" + ms.Topo.RaftServer.Leader())
-			if err != nil {
-				writeJsonError(w, r, http.StatusInternalServerError,
-					fmt.Errorf("Leader URL http://%s Parse Error: %v", ms.Topo.RaftServer.Leader(), err))
-				return
-			}
-			glog.V(4).Infoln("proxying to leader", ms.Topo.RaftServer.Leader())
-			proxy := httputil.NewSingleHostReverseProxy(targetUrl)
-			director := proxy.Director
-			proxy.Director = func(req *http.Request) {
-				actualHost, err := security.GetActualRemoteHost(req)
-				if err == nil {
-					req.Header.Set("HTTP_X_FORWARDED_FOR", actualHost)
-				}
-				director(req)
-			}
-			proxy.Transport = util.Transport
-			proxy.ServeHTTP(w, r)
-		} else {
-			// handle requests locally
-			f(w, r)
+			return
 		}
+		var raftServerLeader string
+		if ms.Topo.RaftServer != nil && ms.Topo.RaftServer.Leader() != "" {
+			raftServerLeader = ms.Topo.RaftServer.Leader()
+		} else if ms.Topo.HashicorpRaft != nil && ms.Topo.HashicorpRaft.Leader() != "" {
+			raftServerLeader = string(ms.Topo.HashicorpRaft.Leader())
+		}
+		if raftServerLeader == "" {
+			f(w, r)
+			return
+		}
+		ms.boundedLeaderChan <- 1
+		defer func() { <-ms.boundedLeaderChan }()
+		targetUrl, err := url.Parse("http://" + raftServerLeader)
+		if err != nil {
+			writeJsonError(w, r, http.StatusInternalServerError,
+				fmt.Errorf("Leader URL http://%s Parse Error: %v", raftServerLeader, err))
+			return
+		}
+		glog.V(4).Infoln("proxying to leader", raftServerLeader)
+		proxy := httputil.NewSingleHostReverseProxy(targetUrl)
+		director := proxy.Director
+		proxy.Director = func(req *http.Request) {
+			actualHost, err := security.GetActualRemoteHost(req)
+			if err == nil {
+				req.Header.Set("HTTP_X_FORWARDED_FOR", actualHost)
+			}
+			director(req)
+		}
+		proxy.Transport = util.Transport
+		proxy.ServeHTTP(w, r)
 	}
 }

@ -301,3 +339,57 @@ func (ms *MasterServer) createSequencer(option *MasterOption) sequence.Sequencer
 	}
 	return seq
 }
+
+func (ms *MasterServer) OnPeerUpdate(update *master_pb.ClusterNodeUpdate) {
+	if update.NodeType != cluster.MasterType || ms.Topo.HashicorpRaft == nil {
+		return
+	}
+	glog.V(4).Infof("OnPeerUpdate: %+v", update)
+
+	peerAddress := pb.ServerAddress(update.Address)
+	peerName := string(peerAddress)
+	isLeader := ms.Topo.HashicorpRaft.State() == hashicorpRaft.Leader
+	if update.IsAdd {
+		if isLeader {
+			raftServerFound := false
+			for _, server := range ms.Topo.HashicorpRaft.GetConfiguration().Configuration().Servers {
+				if string(server.ID) == peerName {
+					raftServerFound = true
+				}
+			}
+			if !raftServerFound {
+				glog.V(0).Infof("adding new raft server: %s", peerName)
+				ms.Topo.HashicorpRaft.AddVoter(
+					hashicorpRaft.ServerID(peerName),
+					hashicorpRaft.ServerAddress(peerAddress.ToGrpcAddress()), 0, 0)
+			}
+		}
+		if ms.onPeerUpdatDoneCnExist {
+			ms.onPeerUpdatDoneCn <- peerName
+		}
+	} else if isLeader {
+		go func(peerName string) {
+			for {
+				select {
+				case <-time.After(RaftServerRemovalTime):
+					err := ms.MasterClient.WithClient(false, func(client master_pb.SeaweedClient) error {
+						_, err := client.RaftRemoveServer(context.Background(), &master_pb.RaftRemoveServerRequest{
+							Id:    peerName,
+							Force: false,
+						})
+						return err
+					})
+					if err != nil {
+						glog.Warningf("failed to removing old raft server %s: %v", peerName, err)
+					}
+					return
+				case peerDone := <-ms.onPeerUpdatDoneCn:
+					if peerName == peerDone {
+						return
+					}
+				}
+			}
+		}(peerName)
+		ms.onPeerUpdatDoneCnExist = true
+	}
+}
--- a/weed/server/master_server_handlers_ui.go
+++ b/weed/server/master_server_handlers_ui.go
@ -5,6 +5,8 @@ import (
 	"time"

 	"github.com/chrislusf/raft"
+	hashicorpRaft "github.com/hashicorp/raft"
+
 	ui "github.com/chrislusf/seaweedfs/weed/server/master_ui"
 	"github.com/chrislusf/seaweedfs/weed/stats"
 	"github.com/chrislusf/seaweedfs/weed/util"
@ -13,20 +15,40 @@ import (
 func (ms *MasterServer) uiStatusHandler(w http.ResponseWriter, r *http.Request) {
 	infos := make(map[string]interface{})
 	infos["Up Time"] = time.Now().Sub(startTime).String()
-	args := struct {
-		Version           string
-		Topology          interface{}
-		RaftServer        raft.Server
-		Stats             map[string]interface{}
-		Counters          *stats.ServerStats
-		VolumeSizeLimitMB uint32
-	}{
-		util.Version(),
-		ms.Topo.ToMap(),
-		ms.Topo.RaftServer,
-		infos,
-		serverStats,
-		ms.option.VolumeSizeLimitMB,
+	infos["Max Volume Id"] = ms.Topo.GetMaxVolumeId()
+	if ms.Topo.RaftServer != nil {
+		args := struct {
+			Version           string
+			Topology          interface{}
+			RaftServer        raft.Server
+			Stats             map[string]interface{}
+			Counters          *stats.ServerStats
+			VolumeSizeLimitMB uint32
+		}{
+			util.Version(),
+			ms.Topo.ToMap(),
+			ms.Topo.RaftServer,
+			infos,
+			serverStats,
+			ms.option.VolumeSizeLimitMB,
+		}
+		ui.StatusTpl.Execute(w, args)
+	} else if ms.Topo.HashicorpRaft != nil {
+		args := struct {
+			Version           string
+			Topology          interface{}
+			RaftServer        *hashicorpRaft.Raft
+			Stats             map[string]interface{}
+			Counters          *stats.ServerStats
+			VolumeSizeLimitMB uint32
+		}{
+			util.Version(),
+			ms.Topo.ToMap(),
+			ms.Topo.HashicorpRaft,
+			infos,
+			serverStats,
+			ms.option.VolumeSizeLimitMB,
+		}
+		ui.StatusNewRaftTpl.Execute(w, args)
 	}
-	ui.StatusTpl.Execute(w, args)
 }
--- a/weed/server/master_ui/masterNewRaft.html
+++ b/weed/server/master_ui/masterNewRaft.html
@ -0,0 +1,121 @@
+<!DOCTYPE html>
+<html>
+<head>
+    <title>SeaweedFS {{ .Version }}</title>
+    <link rel="stylesheet" href="/seaweedfsstatic/bootstrap/3.3.1/css/bootstrap.min.css">
+</head>
+<body>
+<div class="container">
+    <div class="page-header">
+        <h1>
+            <a href="https://github.com/chrislusf/seaweedfs"><img src="/seaweedfsstatic/seaweed50x50.png"></img></a>
+            SeaweedFS <small>{{ .Version }}</small>
+        </h1>
+    </div>
+
+    <div class="row">
+        <div class="col-sm-6">
+            <h2>Cluster status</h2>
+            <table class="table table-condensed table-striped">
+                <tbody>
+                <tr>
+                    <th>Volume Size Limit</th>
+                    <td>{{ .VolumeSizeLimitMB }}MB</td>
+                </tr>
+                <tr>
+                    <th>Free</th>
+                    <td>{{ .Topology.Free }}</td>
+                </tr>
+                <tr>
+                    <th>Max</th>
+                    <td>{{ .Topology.Max }}</td>
+                </tr>
+                {{ with .RaftServer }}
+                <tr>
+                    <th>Leader</th>
+                    <td><a href="http://{{ .Leader }}">{{ .Leader }}</a></td>
+                </tr>
+                <tr>
+                    <th>Other Masters</th>
+                    <td class="col-sm-5">
+                        <ul class="list-unstyled">
+                            {{ range $k, $p := .GetConfiguration.Configuration.Servers }}
+                            <li><a href="http://{{ $p.ID }}/ui/index.html">{{ $p.ID }}</a></li>
+                            {{ end }}
+                        </ul>
+                    </td>
+                </tr>
+                {{ end }}
+                </tbody>
+            </table>
+        </div>
+
+        <div class="col-sm-6">
+            <h2>System Stats</h2>
+            <table class="table table-condensed table-striped">
+                <tr>
+                    <th>Concurrent Connections</th>
+                    <td>{{ .Counters.Connections.WeekCounter.Sum }}</td>
+                </tr>
+                {{ range $key, $val := .Stats }}
+                <tr>
+                    <th>{{ $key }}</th>
+                    <td>{{ $val }}</td>
+                </tr>
+                {{ end }}
+            </table>
+            <h2>Raft Stats</h2>
+            <table class="table table-condensed table-striped">
+                <tr>
+                    <th>applied_index</th>
+                    <td>{{ .RaftServer.Stats.applied_index }}</td>
+                </tr>
+                <tr>
+                    <th>last_log_term</th>
+                    <td>{{ .RaftServer.Stats.last_log_term }}</td>
+                </tr>
+            </table>
+        </div>
+    </div>
+
+    <div class="row">
+        <h2>Topology</h2>
+        <table class="table table-striped">
+            <thead>
+            <tr>
+                <th>Data Center</th>
+                <th>Rack</th>
+                <th>RemoteAddr</th>
+                <th>#Volumes</th>
+                <th>Volume Ids</th>
+                <th>#ErasureCodingShards</th>
+                <th>Max</th>
+            </tr>
+            </thead>
+            <tbody>
+            {{ range $dc_index, $dc := .Topology.DataCenters }}
+            {{ range $rack_index, $rack := $dc.Racks }}
+            {{ range $dn_index, $dn := $rack.DataNodes }}
+            <tr>
+                <td><code>{{ $dc.Id }}</code></td>
+                <td>{{ $rack.Id }}</td>
+                <td><a href="http://{{ $dn.Url }}/ui/index.html">{{ $dn.Url }}</a>
+                    {{ if ne $dn.PublicUrl $dn.Url }}
+                    / <a href="http://{{ $dn.PublicUrl }}/ui/index.html">{{ $dn.PublicUrl }}</a>
+                    {{ end }}
+                </td>
+                <td>{{ $dn.Volumes }}</td>
+                <td>{{ $dn.VolumeIds}}</td>
+                <td>{{ $dn.EcShards }}</td>
+                <td>{{ $dn.Max }}</td>
+            </tr>
+            {{ end }}
+            {{ end }}
+            {{ end }}
+            </tbody>
+        </table>
+    </div>
+
+</div>
+</body>
+</html>
--- a/weed/server/master_ui/templates.go
+++ b/weed/server/master_ui/templates.go
@ -8,4 +8,8 @@ import (
 //go:embed master.html
 var masterHtml string

+//go:embed masterNewRaft.html
+var masterNewRaftHtml string
+
 var StatusTpl = template.Must(template.New("status").Parse(masterHtml))
+var StatusNewRaftTpl = template.Must(template.New("status").Parse(masterNewRaftHtml))
--- a/weed/server/raft_hashicorp.go
+++ b/weed/server/raft_hashicorp.go
@ -0,0 +1,183 @@
+package weed_server
+
+// https://yusufs.medium.com/creating-distributed-kv-database-by-implementing-raft-consensus-using-golang-d0884eef2e28
+// https://github.com/Jille/raft-grpc-example/blob/cd5bcab0218f008e044fbeee4facdd01b06018ad/application.go#L18
+
+import (
+	"fmt"
+	transport "github.com/Jille/raft-grpc-transport"
+	"github.com/chrislusf/seaweedfs/weed/glog"
+	"github.com/chrislusf/seaweedfs/weed/pb"
+	"github.com/hashicorp/raft"
+	boltdb "github.com/hashicorp/raft-boltdb"
+	"google.golang.org/grpc"
+	"math/rand"
+	"os"
+	"path"
+	"path/filepath"
+	"sort"
+	"strings"
+	"time"
+)
+
+const (
+	ldbFile            = "logs.dat"
+	sdbFile            = "stable.dat"
+	updatePeersTimeout = 15 * time.Minute
+)
+
+func getPeerIdx(self pb.ServerAddress, mapPeers map[string]pb.ServerAddress) int {
+	peers := make([]pb.ServerAddress, 0, len(mapPeers))
+	for _, peer := range mapPeers {
+		peers = append(peers, peer)
+	}
+	sort.Slice(peers, func(i, j int) bool {
+		return strings.Compare(string(peers[i]), string(peers[j])) < 0
+	})
+	for i, peer := range peers {
+		if string(peer) == string(self) {
+			return i
+		}
+	}
+	return -1
+}
+
+func (s *RaftServer) AddPeersConfiguration() (cfg raft.Configuration) {
+	for _, peer := range s.peers {
+		cfg.Servers = append(cfg.Servers, raft.Server{
+			Suffrage: raft.Voter,
+			ID:       raft.ServerID(peer),
+			Address:  raft.ServerAddress(peer.ToGrpcAddress()),
+		})
+	}
+	return cfg
+}
+
+func (s *RaftServer) UpdatePeers() {
+	for {
+		select {
+		case isLeader := <-s.RaftHashicorp.LeaderCh():
+			if isLeader {
+				peerLeader := string(s.serverAddr)
+				existsPeerName := make(map[string]bool)
+				for _, server := range s.RaftHashicorp.GetConfiguration().Configuration().Servers {
+					if string(server.ID) == peerLeader {
+						continue
+					}
+					existsPeerName[string(server.ID)] = true
+				}
+				for _, peer := range s.peers {
+					peerName := string(peer)
+					if peerName == peerLeader || existsPeerName[peerName] {
+						continue
+					}
+					glog.V(0).Infof("adding new peer: %s", peerName)
+					s.RaftHashicorp.AddVoter(
+						raft.ServerID(peerName), raft.ServerAddress(peer.ToGrpcAddress()), 0, 0)
+				}
+				for peer, _ := range existsPeerName {
+					if _, found := s.peers[peer]; !found {
+						glog.V(0).Infof("removing old peer: %s", peer)
+						s.RaftHashicorp.RemoveServer(raft.ServerID(peer), 0, 0)
+					}
+				}
+				if _, found := s.peers[peerLeader]; !found {
+					glog.V(0).Infof("removing old leader peer: %s", peerLeader)
+					s.RaftHashicorp.RemoveServer(raft.ServerID(peerLeader), 0, 0)
+				}
+			}
+			return
+		case <-time.After(updatePeersTimeout):
+			return
+		}
+	}
+}
+
+func NewHashicorpRaftServer(option *RaftServerOption) (*RaftServer, error) {
+	s := &RaftServer{
+		peers:      option.Peers,
+		serverAddr: option.ServerAddr,
+		dataDir:    option.DataDir,
+		topo:       option.Topo,
+	}
+
+	c := raft.DefaultConfig()
+	c.LocalID = raft.ServerID(s.serverAddr) // TODO maybee the IP:port address will change
+	c.HeartbeatTimeout = time.Duration(float64(option.HeartbeatInterval) * (rand.Float64()*0.25 + 1))
+	c.ElectionTimeout = option.ElectionTimeout
+	if c.LeaderLeaseTimeout > c.HeartbeatTimeout {
+		c.LeaderLeaseTimeout = c.HeartbeatTimeout
+	}
+	if glog.V(4) {
+		c.LogLevel = "Debug"
+	} else if glog.V(2) {
+		c.LogLevel = "Info"
+	} else if glog.V(1) {
+		c.LogLevel = "Warn"
+	} else if glog.V(0) {
+		c.LogLevel = "Error"
+	}
+
+	if option.RaftBootstrap {
+		os.RemoveAll(path.Join(s.dataDir, ldbFile))
+		os.RemoveAll(path.Join(s.dataDir, sdbFile))
+		os.RemoveAll(path.Join(s.dataDir, "snapshot"))
+	}
+	baseDir := s.dataDir
+
+	ldb, err := boltdb.NewBoltStore(filepath.Join(baseDir, ldbFile))
+	if err != nil {
+		return nil, fmt.Errorf(`boltdb.NewBoltStore(%q): %v`, filepath.Join(baseDir, "logs.dat"), err)
+	}
+
+	sdb, err := boltdb.NewBoltStore(filepath.Join(baseDir, sdbFile))
+	if err != nil {
+		return nil, fmt.Errorf(`boltdb.NewBoltStore(%q): %v`, filepath.Join(baseDir, "stable.dat"), err)
+	}
+
+	fss, err := raft.NewFileSnapshotStore(baseDir, 3, os.Stderr)
+	if err != nil {
+		return nil, fmt.Errorf(`raft.NewFileSnapshotStore(%q, ...): %v`, baseDir, err)
+	}
+
+	s.TransportManager = transport.New(raft.ServerAddress(s.serverAddr), []grpc.DialOption{option.GrpcDialOption})
+
+	stateMachine := StateMachine{topo: option.Topo}
+	s.RaftHashicorp, err = raft.NewRaft(c, &stateMachine, ldb, sdb, fss, s.TransportManager.Transport())
+	if err != nil {
+		return nil, fmt.Errorf("raft.NewRaft: %v", err)
+	}
+	if option.RaftBootstrap || len(s.RaftHashicorp.GetConfiguration().Configuration().Servers) == 0 {
+		cfg := s.AddPeersConfiguration()
+		// Need to get lock, in case all servers do this at the same time.
+		peerIdx := getPeerIdx(s.serverAddr, s.peers)
+		timeSpeep := time.Duration(float64(c.LeaderLeaseTimeout) * (rand.Float64()*0.25 + 1) * float64(peerIdx))
+		glog.V(0).Infof("Bootstrapping idx: %d sleep: %v new cluster: %+v", peerIdx, timeSpeep, cfg)
+		time.Sleep(timeSpeep)
+		f := s.RaftHashicorp.BootstrapCluster(cfg)
+		if err := f.Error(); err != nil {
+			return nil, fmt.Errorf("raft.Raft.BootstrapCluster: %v", err)
+		}
+	} else {
+		go s.UpdatePeers()
+	}
+
+	ticker := time.NewTicker(c.HeartbeatTimeout * 10)
+	if glog.V(4) {
+		go func() {
+			for {
+				select {
+				case <-ticker.C:
+					cfuture := s.RaftHashicorp.GetConfiguration()
+					if err = cfuture.Error(); err != nil {
+						glog.Fatalf("error getting config: %s", err)
+					}
+					configuration := cfuture.Configuration()
+					glog.V(4).Infof("Showing peers known by %s:\n%+v", s.RaftHashicorp.String(), configuration.Servers)
+				}
+			}
+		}()
+	}
+
+	return s, nil
+}
--- a/weed/server/raft_server.go
+++ b/weed/server/raft_server.go
@ -2,6 +2,9 @@ package weed_server

 import (
 	"encoding/json"
+	transport "github.com/Jille/raft-grpc-transport"
+	"io"
+	"io/ioutil"
 	"math/rand"
 	"os"
 	"path"
@ -12,6 +15,7 @@ import (
 	"github.com/chrislusf/seaweedfs/weed/pb"

 	"github.com/chrislusf/raft"
+	hashicorpRaft "github.com/hashicorp/raft"

 	"github.com/chrislusf/seaweedfs/weed/glog"
 	"github.com/chrislusf/seaweedfs/weed/topology"
@ -26,14 +30,17 @@ type RaftServerOption struct {
 	RaftResumeState   bool
 	HeartbeatInterval time.Duration
 	ElectionTimeout   time.Duration
+	RaftBootstrap     bool
 }

 type RaftServer struct {
-	peers      map[string]pb.ServerAddress // initial peers to join with
-	raftServer raft.Server
-	dataDir    string
-	serverAddr pb.ServerAddress
-	topo       *topology.Topology
+	peers            map[string]pb.ServerAddress // initial peers to join with
+	raftServer       raft.Server
+	RaftHashicorp    *hashicorpRaft.Raft
+	TransportManager *transport.Manager
+	dataDir          string
+	serverAddr       pb.ServerAddress
+	topo             *topology.Topology
 	*raft.GrpcServer
 }

@ -42,6 +49,8 @@ type StateMachine struct {
 	topo *topology.Topology
 }

+var _ hashicorpRaft.FSM = &StateMachine{}
+
 func (s StateMachine) Save() ([]byte, error) {
 	state := topology.MaxVolumeIdCommand{
 		MaxVolumeId: s.topo.GetMaxVolumeId(),
@ -61,6 +70,36 @@ func (s StateMachine) Recovery(data []byte) error {
 	return nil
 }

+func (s *StateMachine) Apply(l *hashicorpRaft.Log) interface{} {
+	before := s.topo.GetMaxVolumeId()
+	state := topology.MaxVolumeIdCommand{}
+	err := json.Unmarshal(l.Data, &state)
+	if err != nil {
+		return err
+	}
+	s.topo.UpAdjustMaxVolumeId(state.MaxVolumeId)
+
+	glog.V(1).Infoln("max volume id", before, "==>", s.topo.GetMaxVolumeId())
+	return nil
+}
+
+func (s *StateMachine) Snapshot() (hashicorpRaft.FSMSnapshot, error) {
+	return &topology.MaxVolumeIdCommand{
+		MaxVolumeId: s.topo.GetMaxVolumeId(),
+	}, nil
+}
+
+func (s *StateMachine) Restore(r io.ReadCloser) error {
+	b, err := ioutil.ReadAll(r)
+	if err != nil {
+		return err
+	}
+	if err := s.Recovery(b); err != nil {
+		return err
+	}
+	return nil
+}
+
 func NewRaftServer(option *RaftServerOption) (*RaftServer, error) {
 	s := &RaftServer{
 		peers:      option.Peers,
@ -132,12 +171,17 @@ func NewRaftServer(option *RaftServerOption) (*RaftServer, error) {
 }

 func (s *RaftServer) Peers() (members []string) {
-	peers := s.raftServer.Peers()
-
-	for _, p := range peers {
-		members = append(members, p.Name)
+	if s.raftServer != nil {
+		peers := s.raftServer.Peers()
+		for _, p := range peers {
+			members = append(members, p.Name)
+		}
+	} else if s.RaftHashicorp != nil {
+		cfg := s.RaftHashicorp.GetConfiguration()
+		for _, p := range cfg.Configuration().Servers {
+			members = append(members, string(p.ID))
+		}
 	}
-
 	return
 }

--- a/weed/server/raft_server_handlers.go
+++ b/weed/server/raft_server_handlers.go
@ -25,3 +25,11 @@ func (s *RaftServer) StatusHandler(w http.ResponseWriter, r *http.Request) {
 	}
 	writeJsonQuiet(w, r, http.StatusOK, ret)
 }
+
+func (s *RaftServer) StatsRaftHandler(w http.ResponseWriter, r *http.Request) {
+	if s.RaftHashicorp == nil {
+		writeJsonQuiet(w, r, http.StatusNotFound, nil)
+		return
+	}
+	writeJsonQuiet(w, r, http.StatusOK, s.RaftHashicorp.Stats())
+}
--- a/weed/shell/command_cluster_raft_add.go
+++ b/weed/shell/command_cluster_raft_add.go
@ -0,0 +1,59 @@
+package shell
+
+import (
+	"context"
+	"flag"
+	"fmt"
+	"github.com/chrislusf/seaweedfs/weed/pb/master_pb"
+	"io"
+)
+
+func init() {
+	Commands = append(Commands, &commandRaftServerAdd{})
+}
+
+type commandRaftServerAdd struct {
+}
+
+func (c *commandRaftServerAdd) Name() string {
+	return "cluster.raft.add"
+}
+
+func (c *commandRaftServerAdd) Help() string {
+	return `add a server to the raft cluster
+
+	Example:
+		cluster.raft.add -id <server_name> -address <server_host:port> -voter
+`
+}
+
+func (c *commandRaftServerAdd) Do(args []string, commandEnv *CommandEnv, writer io.Writer) (err error) {
+
+	raftServerAddCommand := flag.NewFlagSet(c.Name(), flag.ContinueOnError)
+	serverId := raftServerAddCommand.String("id", "", "server id")
+	serverAddress := raftServerAddCommand.String("address", "", "server grpc address")
+	serverVoter := raftServerAddCommand.Bool("voter", true, "assign it a vote")
+	if err = raftServerAddCommand.Parse(args); err != nil {
+		return nil
+	}
+
+	if *serverId == "" || *serverAddress == "" {
+		return fmt.Errorf("empty server id or address")
+	}
+
+	err = commandEnv.MasterClient.WithClient(false, func(client master_pb.SeaweedClient) error {
+		_, err := client.RaftAddServer(context.Background(), &master_pb.RaftAddServerRequest{
+			Id:      *serverId,
+			Address: *serverAddress,
+			Voter:   *serverVoter,
+		})
+		if err != nil {
+			return fmt.Errorf("raft add server: %v", err)
+		}
+		println("added server", *serverId)
+		return nil
+	})
+
+	return err
+
+}
--- a/weed/shell/command_cluster_raft_ps.go
+++ b/weed/shell/command_cluster_raft_ps.go
@ -0,0 +1,51 @@
+package shell
+
+import (
+	"context"
+	"flag"
+	"fmt"
+	"github.com/chrislusf/seaweedfs/weed/pb/master_pb"
+	"io"
+)
+
+func init() {
+	Commands = append(Commands, &commandRaftClusterPs{})
+}
+
+type commandRaftClusterPs struct {
+}
+
+func (c *commandRaftClusterPs) Name() string {
+	return "cluster.raft.ps"
+}
+
+func (c *commandRaftClusterPs) Help() string {
+	return `check current raft cluster status
+
+	cluster.raft.ps
+`
+}
+
+func (c *commandRaftClusterPs) Do(args []string, commandEnv *CommandEnv, writer io.Writer) (err error) {
+
+	raftClusterPsCommand := flag.NewFlagSet(c.Name(), flag.ContinueOnError)
+	if err = raftClusterPsCommand.Parse(args); err != nil {
+		return nil
+	}
+
+	err = commandEnv.MasterClient.WithClient(false, func(client master_pb.SeaweedClient) error {
+		resp, err := client.RaftListClusterServers(context.Background(), &master_pb.RaftListClusterServersRequest{})
+		if err != nil {
+			return fmt.Errorf("raft list cluster: %v", err)
+		}
+		fmt.Fprintf(writer, "the raft cluster has %d servers\n", len(resp.ClusterServers))
+		for _, server := range resp.ClusterServers {
+			fmt.Fprintf(writer, "  * %s %s (%s)\n", server.Id, server.Address, server.Suffrage)
+		}
+
+		return nil
+	})
+
+	return err
+
+}
--- a/weed/shell/command_cluster_raft_remove.go
+++ b/weed/shell/command_cluster_raft_remove.go
@ -0,0 +1,56 @@
+package shell
+
+import (
+	"context"
+	"flag"
+	"fmt"
+	"github.com/chrislusf/seaweedfs/weed/pb/master_pb"
+	"io"
+)
+
+func init() {
+	Commands = append(Commands, &commandRaftServerRemove{})
+}
+
+type commandRaftServerRemove struct {
+}
+
+func (c *commandRaftServerRemove) Name() string {
+	return "cluster.raft.remove"
+}
+
+func (c *commandRaftServerRemove) Help() string {
+	return `remove a server from the raft cluster
+
+	Example:
+		cluster.raft.remove -id <server_name>
+`
+}
+
+func (c *commandRaftServerRemove) Do(args []string, commandEnv *CommandEnv, writer io.Writer) (err error) {
+
+	raftServerAddCommand := flag.NewFlagSet(c.Name(), flag.ContinueOnError)
+	serverId := raftServerAddCommand.String("id", "", "server id")
+	if err = raftServerAddCommand.Parse(args); err != nil {
+		return nil
+	}
+
+	if *serverId == "" {
+		return fmt.Errorf("empty server id")
+	}
+
+	err = commandEnv.MasterClient.WithClient(false, func(client master_pb.SeaweedClient) error {
+		_, err := client.RaftRemoveServer(context.Background(), &master_pb.RaftRemoveServerRequest{
+			Id:    *serverId,
+			Force: true,
+		})
+		if err != nil {
+			return fmt.Errorf("raft remove server: %v", err)
+		}
+		println("removed server", *serverId)
+		return nil
+	})
+
+	return err
+
+}
--- a/weed/topology/cluster_commands.go
+++ b/weed/topology/cluster_commands.go
@ -1,9 +1,12 @@
 package topology

 import (
+	"encoding/json"
+	"fmt"
 	"github.com/chrislusf/raft"
 	"github.com/chrislusf/seaweedfs/weed/glog"
 	"github.com/chrislusf/seaweedfs/weed/storage/needle"
+	hashicorpRaft "github.com/hashicorp/raft"
 )

 type MaxVolumeIdCommand struct {
@ -20,6 +23,7 @@ func (c *MaxVolumeIdCommand) CommandName() string {
 	return "MaxVolumeId"
 }

+// deprecatedCommandApply represents the old interface to apply a command to the server.
 func (c *MaxVolumeIdCommand) Apply(server raft.Server) (interface{}, error) {
 	topo := server.Context().(*Topology)
 	before := topo.GetMaxVolumeId()
@ -29,3 +33,19 @@ func (c *MaxVolumeIdCommand) Apply(server raft.Server) (interface{}, error) {

 	return nil, nil
 }
+
+func (s *MaxVolumeIdCommand) Persist(sink hashicorpRaft.SnapshotSink) error {
+	b, err := json.Marshal(s)
+	if err != nil {
+		return fmt.Errorf("marshal: %v", err)
+	}
+	_, err = sink.Write(b)
+	if err != nil {
+		sink.Cancel()
+		return fmt.Errorf("sink.Write(): %v", err)
+	}
+	return sink.Close()
+}
+
+func (s *MaxVolumeIdCommand) Release() {
+}
--- a/weed/topology/topology.go
+++ b/weed/topology/topology.go
@ -1,6 +1,7 @@
 package topology

 import (
+	"encoding/json"
 	"errors"
 	"fmt"
 	"github.com/chrislusf/seaweedfs/weed/pb"
@ -10,6 +11,7 @@ import (
 	"time"

 	"github.com/chrislusf/raft"
+	hashicorpRaft "github.com/hashicorp/raft"

 	"github.com/chrislusf/seaweedfs/weed/glog"
 	"github.com/chrislusf/seaweedfs/weed/pb/master_pb"
@ -40,7 +42,8 @@ type Topology struct {

 	Configuration *Configuration

-	RaftServer raft.Server
+	RaftServer    raft.Server
+	HashicorpRaft *hashicorpRaft.Raft
 }

 func NewTopology(id string, seq sequence.Sequencer, volumeSizeLimit uint64, pulse int, replicationAsMin bool) *Topology {
@ -76,6 +79,10 @@ func (t *Topology) IsLeader() bool {
 				return true
 			}
 		}
+	} else if t.HashicorpRaft != nil {
+		if t.HashicorpRaft.State() == hashicorpRaft.Leader {
+			return true
+		}
 	}
 	return false
 }
@ -85,6 +92,8 @@ func (t *Topology) Leader() (pb.ServerAddress, error) {
 	for count := 0; count < 3; count++ {
 		if t.RaftServer != nil {
 			l = pb.ServerAddress(t.RaftServer.Leader())
+		} else if t.HashicorpRaft != nil {
+			l = pb.ServerAddress(t.HashicorpRaft.Leader())
 		} else {
 			return "", errors.New("Raft Server not ready yet!")
 		}
@ -124,8 +133,18 @@ func (t *Topology) Lookup(collection string, vid needle.VolumeId) (dataNodes []*
 func (t *Topology) NextVolumeId() (needle.VolumeId, error) {
 	vid := t.GetMaxVolumeId()
 	next := vid.Next()
-	if _, err := t.RaftServer.Do(NewMaxVolumeIdCommand(next)); err != nil {
-		return 0, err
+	if t.RaftServer != nil {
+		if _, err := t.RaftServer.Do(NewMaxVolumeIdCommand(next)); err != nil {
+			return 0, err
+		}
+	} else if t.HashicorpRaft != nil {
+		b, err := json.Marshal(NewMaxVolumeIdCommand(next))
+		if err != nil {
+			return 0, fmt.Errorf("failed marshal NewMaxVolumeIdCommand: %+v", err)
+		}
+		if future := t.HashicorpRaft.Apply(b, time.Second); future.Error() != nil {
+			return 0, future.Error()
+		}
 	}
 	return next, nil
 }