seaweedfs/weed/topology/store_replicate.go

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package topology
import (
"encoding/json"
"errors"
"fmt"
"google.golang.org/grpc"
"net/http"
"net/url"
"strconv"
"strings"
"github.com/chrislusf/seaweedfs/weed/glog"
"github.com/chrislusf/seaweedfs/weed/operation"
"github.com/chrislusf/seaweedfs/weed/security"
"github.com/chrislusf/seaweedfs/weed/storage"
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"github.com/chrislusf/seaweedfs/weed/storage/needle"
"github.com/chrislusf/seaweedfs/weed/storage/types"
"github.com/chrislusf/seaweedfs/weed/util"
)
func ReplicatedWrite(masterFn operation.GetMasterFn, grpcDialOption grpc.DialOption, s *storage.Store, volumeId needle.VolumeId, n *needle.Needle, r *http.Request) (isUnchanged bool, err error) {
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//check JWT
jwt := security.GetJwt(r)
// check whether this is a replicated write request
var remoteLocations []operation.Location
if r.FormValue("type") != "replicate" {
// this is the initial request
remoteLocations, err = getWritableRemoteReplications(s, grpcDialOption, volumeId, masterFn)
if err != nil {
glog.V(0).Infoln(err)
return
}
}
// read fsync value
fsync := false
if r.FormValue("fsync") == "true" {
fsync = true
}
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if s.GetVolume(volumeId) != nil {
isUnchanged, err = s.WriteVolumeNeedle(volumeId, n, true, fsync)
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if err != nil {
err = fmt.Errorf("failed to write to local disk: %v", err)
glog.V(0).Infoln(err)
return
}
}
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if len(remoteLocations) > 0 { //send to other replica locations
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if err = DistributedOperation(remoteLocations, func(location operation.Location) error {
u := url.URL{
Scheme: "http",
Host: location.Url,
Path: r.URL.Path,
}
q := url.Values{
"type": {"replicate"},
"ttl": {n.Ttl.String()},
}
if n.LastModified > 0 {
q.Set("ts", strconv.FormatUint(n.LastModified, 10))
}
if n.IsChunkedManifest() {
q.Set("cm", "true")
}
u.RawQuery = q.Encode()
pairMap := make(map[string]string)
if n.HasPairs() {
tmpMap := make(map[string]string)
err := json.Unmarshal(n.Pairs, &tmpMap)
if err != nil {
glog.V(0).Infoln("Unmarshal pairs error:", err)
}
for k, v := range tmpMap {
pairMap[needle.PairNamePrefix+k] = v
}
}
// volume server do not know about encryption
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// TODO optimize here to compress data only once
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_, err := operation.UploadData(u.String(), string(n.Name), false, n.Data, n.IsCompressed(), string(n.Mime), pairMap, jwt)
return err
}); err != nil {
err = fmt.Errorf("failed to write to replicas for volume %d: %v", volumeId, err)
glog.V(0).Infoln(err)
}
}
return
}
func ReplicatedDelete(masterFn operation.GetMasterFn, grpcDialOption grpc.DialOption, store *storage.Store, volumeId needle.VolumeId, n *needle.Needle, r *http.Request) (size types.Size, err error) {
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//check JWT
jwt := security.GetJwt(r)
var remoteLocations []operation.Location
if r.FormValue("type") != "replicate" {
remoteLocations, err = getWritableRemoteReplications(store, grpcDialOption, volumeId, masterFn)
if err != nil {
glog.V(0).Infoln(err)
return
}
}
size, err = store.DeleteVolumeNeedle(volumeId, n)
if err != nil {
glog.V(0).Infoln("delete error:", err)
return
}
if len(remoteLocations) > 0 { //send to other replica locations
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if err = DistributedOperation(remoteLocations, func(location operation.Location) error {
return util.Delete("http://"+location.Url+r.URL.Path+"?type=replicate", string(jwt))
}); err != nil {
size = 0
}
}
return
}
type DistributedOperationResult map[string]error
func (dr DistributedOperationResult) Error() error {
var errs []string
for k, v := range dr {
if v != nil {
errs = append(errs, fmt.Sprintf("[%s]: %v", k, v))
}
}
if len(errs) == 0 {
return nil
}
return errors.New(strings.Join(errs, "\n"))
}
type RemoteResult struct {
Host string
Error error
}
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func DistributedOperation(locations []operation.Location, op func(location operation.Location) error) error {
length := len(locations)
results := make(chan RemoteResult)
for _, location := range locations {
go func(location operation.Location, results chan RemoteResult) {
results <- RemoteResult{location.Url, op(location)}
}(location, results)
}
ret := DistributedOperationResult(make(map[string]error))
for i := 0; i < length; i++ {
result := <-results
ret[result.Host] = result.Error
}
return ret.Error()
}
func getWritableRemoteReplications(s *storage.Store, grpcDialOption grpc.DialOption, volumeId needle.VolumeId, masterFn operation.GetMasterFn) (remoteLocations []operation.Location, err error) {
volume: proxy writes to remote volume server, with replication or not the panic is triggered by uploading a file to a volume server not holding the designated replica. 2020-03-15 10:20:14.365488 I | http: panic serving 127.0.0.1:57124: runtime error: invalid memory address or nil pointer dereference goroutine 119 [running]: net/http.(*conn).serve.func1(0xc0001a8000) /home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:1772 +0x139 panic(0x2316fe0, 0x3662900) /home/travis/.gimme/versions/go1.14.linux.amd64/src/runtime/panic.go:973 +0x396 github.com/chrislusf/seaweedfs/weed/topology.getWritableRemoteReplications(0xc00009c000, 0x2, 0x7ffeefbffbd2, 0xe, 0x0, 0xa, 0x0, 0x0, 0xbb4bf1f7) /home/travis/gopath/src/github.com/chrislusf/seaweedfs/weed/topology/store_replicate.go:157 +0x53 github.com/chrislusf/seaweedfs/weed/topology.ReplicatedWrite(0x7ffeefbffbd2, 0xe, 0xc00009c000, 0xc000000002, 0xc000472750, 0xc0001b2200, 0x0, 0x1, 0x0) /home/travis/gopath/src/github.com/chrislusf/seaweedfs/weed/topology/store_replicate.go:29 +0xc7 github.com/chrislusf/seaweedfs/weed/server.(*VolumeServer).PostHandler(0xc0001513f0, 0x292bde0, 0xc0001fe2a0, 0xc0001b2200) /home/travis/gopath/src/github.com/chrislusf/seaweedfs/weed/server/volume_server_handlers_write.go:52 +0x56f github.com/chrislusf/seaweedfs/weed/server.(*VolumeServer).privateStoreHandler(0xc0001513f0, 0x292bde0, 0xc0001fe2a0, 0xc0001b2200) /home/travis/gopath/src/github.com/chrislusf/seaweedfs/weed/server/volume_server_handlers.go:37 +0x21f net/http.HandlerFunc.ServeHTTP(0xc0004420e0, 0x292bde0, 0xc0001fe2a0, 0xc0001b2200) /home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:2012 +0x44 net/http.(*ServeMux).ServeHTTP(0xc0001fc800, 0x292bde0, 0xc0001fe2a0, 0xc0001b2200) /home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:2387 +0x1a5 net/http.serverHandler.ServeHTTP(0xc0001781c0, 0x292bde0, 0xc0001fe2a0, 0xc0001b2200) /home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:2807 +0xa3 net/http.(*conn).serve(0xc0001a8000, 0x2934420, 0xc000212400) /home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:1895 +0x86c created by net/http.(*Server).Serve /home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:2933 +0x35c Eg: server A (datacenter 1) and server B (datacenter 2) hold replica (100) for volume 1. If you upload a file with a key 1,xxxxx to server C (datacenter 3) will trigger the panic on server C. The server C should either proxy upload file to the correct volume server or should return an HTTP error code and not panic.
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v := s.GetVolume(volumeId)
volume: proxy writes to remote volume server, with replication or not the panic is triggered by uploading a file to a volume server not holding the designated replica. 2020-03-15 10:20:14.365488 I | http: panic serving 127.0.0.1:57124: runtime error: invalid memory address or nil pointer dereference goroutine 119 [running]: net/http.(*conn).serve.func1(0xc0001a8000) /home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:1772 +0x139 panic(0x2316fe0, 0x3662900) /home/travis/.gimme/versions/go1.14.linux.amd64/src/runtime/panic.go:973 +0x396 github.com/chrislusf/seaweedfs/weed/topology.getWritableRemoteReplications(0xc00009c000, 0x2, 0x7ffeefbffbd2, 0xe, 0x0, 0xa, 0x0, 0x0, 0xbb4bf1f7) /home/travis/gopath/src/github.com/chrislusf/seaweedfs/weed/topology/store_replicate.go:157 +0x53 github.com/chrislusf/seaweedfs/weed/topology.ReplicatedWrite(0x7ffeefbffbd2, 0xe, 0xc00009c000, 0xc000000002, 0xc000472750, 0xc0001b2200, 0x0, 0x1, 0x0) /home/travis/gopath/src/github.com/chrislusf/seaweedfs/weed/topology/store_replicate.go:29 +0xc7 github.com/chrislusf/seaweedfs/weed/server.(*VolumeServer).PostHandler(0xc0001513f0, 0x292bde0, 0xc0001fe2a0, 0xc0001b2200) /home/travis/gopath/src/github.com/chrislusf/seaweedfs/weed/server/volume_server_handlers_write.go:52 +0x56f github.com/chrislusf/seaweedfs/weed/server.(*VolumeServer).privateStoreHandler(0xc0001513f0, 0x292bde0, 0xc0001fe2a0, 0xc0001b2200) /home/travis/gopath/src/github.com/chrislusf/seaweedfs/weed/server/volume_server_handlers.go:37 +0x21f net/http.HandlerFunc.ServeHTTP(0xc0004420e0, 0x292bde0, 0xc0001fe2a0, 0xc0001b2200) /home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:2012 +0x44 net/http.(*ServeMux).ServeHTTP(0xc0001fc800, 0x292bde0, 0xc0001fe2a0, 0xc0001b2200) /home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:2387 +0x1a5 net/http.serverHandler.ServeHTTP(0xc0001781c0, 0x292bde0, 0xc0001fe2a0, 0xc0001b2200) /home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:2807 +0xa3 net/http.(*conn).serve(0xc0001a8000, 0x2934420, 0xc000212400) /home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:1895 +0x86c created by net/http.(*Server).Serve /home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:2933 +0x35c Eg: server A (datacenter 1) and server B (datacenter 2) hold replica (100) for volume 1. If you upload a file with a key 1,xxxxx to server C (datacenter 3) will trigger the panic on server C. The server C should either proxy upload file to the correct volume server or should return an HTTP error code and not panic.
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if v != nil && v.ReplicaPlacement.GetCopyCount() == 1 {
return
}
volume: proxy writes to remote volume server, with replication or not the panic is triggered by uploading a file to a volume server not holding the designated replica. 2020-03-15 10:20:14.365488 I | http: panic serving 127.0.0.1:57124: runtime error: invalid memory address or nil pointer dereference goroutine 119 [running]: net/http.(*conn).serve.func1(0xc0001a8000) /home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:1772 +0x139 panic(0x2316fe0, 0x3662900) /home/travis/.gimme/versions/go1.14.linux.amd64/src/runtime/panic.go:973 +0x396 github.com/chrislusf/seaweedfs/weed/topology.getWritableRemoteReplications(0xc00009c000, 0x2, 0x7ffeefbffbd2, 0xe, 0x0, 0xa, 0x0, 0x0, 0xbb4bf1f7) /home/travis/gopath/src/github.com/chrislusf/seaweedfs/weed/topology/store_replicate.go:157 +0x53 github.com/chrislusf/seaweedfs/weed/topology.ReplicatedWrite(0x7ffeefbffbd2, 0xe, 0xc00009c000, 0xc000000002, 0xc000472750, 0xc0001b2200, 0x0, 0x1, 0x0) /home/travis/gopath/src/github.com/chrislusf/seaweedfs/weed/topology/store_replicate.go:29 +0xc7 github.com/chrislusf/seaweedfs/weed/server.(*VolumeServer).PostHandler(0xc0001513f0, 0x292bde0, 0xc0001fe2a0, 0xc0001b2200) /home/travis/gopath/src/github.com/chrislusf/seaweedfs/weed/server/volume_server_handlers_write.go:52 +0x56f github.com/chrislusf/seaweedfs/weed/server.(*VolumeServer).privateStoreHandler(0xc0001513f0, 0x292bde0, 0xc0001fe2a0, 0xc0001b2200) /home/travis/gopath/src/github.com/chrislusf/seaweedfs/weed/server/volume_server_handlers.go:37 +0x21f net/http.HandlerFunc.ServeHTTP(0xc0004420e0, 0x292bde0, 0xc0001fe2a0, 0xc0001b2200) /home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:2012 +0x44 net/http.(*ServeMux).ServeHTTP(0xc0001fc800, 0x292bde0, 0xc0001fe2a0, 0xc0001b2200) /home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:2387 +0x1a5 net/http.serverHandler.ServeHTTP(0xc0001781c0, 0x292bde0, 0xc0001fe2a0, 0xc0001b2200) /home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:2807 +0xa3 net/http.(*conn).serve(0xc0001a8000, 0x2934420, 0xc000212400) /home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:1895 +0x86c created by net/http.(*Server).Serve /home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:2933 +0x35c Eg: server A (datacenter 1) and server B (datacenter 2) hold replica (100) for volume 1. If you upload a file with a key 1,xxxxx to server C (datacenter 3) will trigger the panic on server C. The server C should either proxy upload file to the correct volume server or should return an HTTP error code and not panic.
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// not on local store, or has replications
lookupResult, lookupErr := operation.LookupVolumeId(masterFn, grpcDialOption, volumeId.String())
volume: proxy writes to remote volume server, with replication or not the panic is triggered by uploading a file to a volume server not holding the designated replica. 2020-03-15 10:20:14.365488 I | http: panic serving 127.0.0.1:57124: runtime error: invalid memory address or nil pointer dereference goroutine 119 [running]: net/http.(*conn).serve.func1(0xc0001a8000) /home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:1772 +0x139 panic(0x2316fe0, 0x3662900) /home/travis/.gimme/versions/go1.14.linux.amd64/src/runtime/panic.go:973 +0x396 github.com/chrislusf/seaweedfs/weed/topology.getWritableRemoteReplications(0xc00009c000, 0x2, 0x7ffeefbffbd2, 0xe, 0x0, 0xa, 0x0, 0x0, 0xbb4bf1f7) /home/travis/gopath/src/github.com/chrislusf/seaweedfs/weed/topology/store_replicate.go:157 +0x53 github.com/chrislusf/seaweedfs/weed/topology.ReplicatedWrite(0x7ffeefbffbd2, 0xe, 0xc00009c000, 0xc000000002, 0xc000472750, 0xc0001b2200, 0x0, 0x1, 0x0) /home/travis/gopath/src/github.com/chrislusf/seaweedfs/weed/topology/store_replicate.go:29 +0xc7 github.com/chrislusf/seaweedfs/weed/server.(*VolumeServer).PostHandler(0xc0001513f0, 0x292bde0, 0xc0001fe2a0, 0xc0001b2200) /home/travis/gopath/src/github.com/chrislusf/seaweedfs/weed/server/volume_server_handlers_write.go:52 +0x56f github.com/chrislusf/seaweedfs/weed/server.(*VolumeServer).privateStoreHandler(0xc0001513f0, 0x292bde0, 0xc0001fe2a0, 0xc0001b2200) /home/travis/gopath/src/github.com/chrislusf/seaweedfs/weed/server/volume_server_handlers.go:37 +0x21f net/http.HandlerFunc.ServeHTTP(0xc0004420e0, 0x292bde0, 0xc0001fe2a0, 0xc0001b2200) /home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:2012 +0x44 net/http.(*ServeMux).ServeHTTP(0xc0001fc800, 0x292bde0, 0xc0001fe2a0, 0xc0001b2200) /home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:2387 +0x1a5 net/http.serverHandler.ServeHTTP(0xc0001781c0, 0x292bde0, 0xc0001fe2a0, 0xc0001b2200) /home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:2807 +0xa3 net/http.(*conn).serve(0xc0001a8000, 0x2934420, 0xc000212400) /home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:1895 +0x86c created by net/http.(*Server).Serve /home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:2933 +0x35c Eg: server A (datacenter 1) and server B (datacenter 2) hold replica (100) for volume 1. If you upload a file with a key 1,xxxxx to server C (datacenter 3) will trigger the panic on server C. The server C should either proxy upload file to the correct volume server or should return an HTTP error code and not panic.
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if lookupErr == nil {
selfUrl := s.Ip + ":" + strconv.Itoa(s.Port)
for _, location := range lookupResult.Locations {
if location.Url != selfUrl {
remoteLocations = append(remoteLocations, location)
}
volume: proxy writes to remote volume server, with replication or not the panic is triggered by uploading a file to a volume server not holding the designated replica. 2020-03-15 10:20:14.365488 I | http: panic serving 127.0.0.1:57124: runtime error: invalid memory address or nil pointer dereference goroutine 119 [running]: net/http.(*conn).serve.func1(0xc0001a8000) /home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:1772 +0x139 panic(0x2316fe0, 0x3662900) /home/travis/.gimme/versions/go1.14.linux.amd64/src/runtime/panic.go:973 +0x396 github.com/chrislusf/seaweedfs/weed/topology.getWritableRemoteReplications(0xc00009c000, 0x2, 0x7ffeefbffbd2, 0xe, 0x0, 0xa, 0x0, 0x0, 0xbb4bf1f7) /home/travis/gopath/src/github.com/chrislusf/seaweedfs/weed/topology/store_replicate.go:157 +0x53 github.com/chrislusf/seaweedfs/weed/topology.ReplicatedWrite(0x7ffeefbffbd2, 0xe, 0xc00009c000, 0xc000000002, 0xc000472750, 0xc0001b2200, 0x0, 0x1, 0x0) /home/travis/gopath/src/github.com/chrislusf/seaweedfs/weed/topology/store_replicate.go:29 +0xc7 github.com/chrislusf/seaweedfs/weed/server.(*VolumeServer).PostHandler(0xc0001513f0, 0x292bde0, 0xc0001fe2a0, 0xc0001b2200) /home/travis/gopath/src/github.com/chrislusf/seaweedfs/weed/server/volume_server_handlers_write.go:52 +0x56f github.com/chrislusf/seaweedfs/weed/server.(*VolumeServer).privateStoreHandler(0xc0001513f0, 0x292bde0, 0xc0001fe2a0, 0xc0001b2200) /home/travis/gopath/src/github.com/chrislusf/seaweedfs/weed/server/volume_server_handlers.go:37 +0x21f net/http.HandlerFunc.ServeHTTP(0xc0004420e0, 0x292bde0, 0xc0001fe2a0, 0xc0001b2200) /home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:2012 +0x44 net/http.(*ServeMux).ServeHTTP(0xc0001fc800, 0x292bde0, 0xc0001fe2a0, 0xc0001b2200) /home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:2387 +0x1a5 net/http.serverHandler.ServeHTTP(0xc0001781c0, 0x292bde0, 0xc0001fe2a0, 0xc0001b2200) /home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:2807 +0xa3 net/http.(*conn).serve(0xc0001a8000, 0x2934420, 0xc000212400) /home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:1895 +0x86c created by net/http.(*Server).Serve /home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:2933 +0x35c Eg: server A (datacenter 1) and server B (datacenter 2) hold replica (100) for volume 1. If you upload a file with a key 1,xxxxx to server C (datacenter 3) will trigger the panic on server C. The server C should either proxy upload file to the correct volume server or should return an HTTP error code and not panic.
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}
} else {
err = fmt.Errorf("failed to lookup for %d: %v", volumeId, lookupErr)
return
}
if v != nil {
// has one local and has remote replications
copyCount := v.ReplicaPlacement.GetCopyCount()
if len(lookupResult.Locations) < copyCount {
err = fmt.Errorf("replicating opetations [%d] is less than volume %d replication copy count [%d]",
len(lookupResult.Locations), volumeId, copyCount)
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}
}
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return
}