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master: add configurable volume growth toml setting

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This commit is contained in:
Chris Lu 2020-02-03 18:15:16 -08:00
parent 382ff218d3
commit dc786a63ac
2 changed files with 19 additions and 4 deletions
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9
weed/command/scaffold.go
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@ -369,6 +369,8 @@ type = "memory" # Choose [memory|etcd] type for storing the file id sequence
sequencer_etcd_urls = "http://127.0.0.1:2379"
# configurations for tiered cloud storage
# old volumes are transparently moved to cloud for cost efficiency
[storage.backend]
[storage.backend.s3.default]
enabled = false
@ -377,5 +379,12 @@ sequencer_etcd_urls = "http://127.0.0.1:2379"
region = "us-east-2"
bucket = "your_bucket_name" # an existing bucket
# create this number of logical volumes if no more writable volumes
[master.volume_growth]
count_1 = 7 # create 1 x 7 = 7 actual volumes
count_2 = 6 # create 2 x 6 = 12 actual volumes
count_3 = 3 # create 3 x 3 = 9 actual volumes
count_other = 1 # create n x 1 = n actual volumes
`
)

14
weed/topology/volume_growth.go
View file

@ -7,6 +7,7 @@ import (
"github.com/chrislusf/seaweedfs/weed/storage/needle"
"github.com/chrislusf/seaweedfs/weed/storage/super_block"
"github.com/chrislusf/seaweedfs/weed/util"
"google.golang.org/grpc"
@ -48,15 +49,20 @@ func NewDefaultVolumeGrowth() *VolumeGrowth {
// one replication type may need rp.GetCopyCount() actual volumes
// given copyCount, how many logical volumes to create
func (vg *VolumeGrowth) findVolumeCount(copyCount int) (count int) {
v := util.GetViper()
v.SetDefault("master.volume_growth.copy_1", 7)
v.SetDefault("master.volume_growth.copy_2", 6)
v.SetDefault("master.volume_growth.copy_3", 3)
v.SetDefault("master.volume_growth.copy_other", 1)
switch copyCount {
case 1:
count = 7
count = v.GetInt("master.volume_growth.copy_1")
case 2:
count = 6
count = v.GetInt("master.volume_growth.copy_2")
case 3:
count = 3
count = v.GetInt("master.volume_growth.copy_3")
default:
count = 1
count = v.GetInt("master.volume_growth.copy_other")
}
return
}