mirror of
https://github.com/chrislusf/seaweedfs
synced 2024-05-04 18:40:44 +02:00
0b0fb9b9e4
* avoid data race read volume.IsEmpty - avoid phantom read isEmpty for onlyEmpty - use `v.DataBackend.GetStat()` in v.dataFileAccessLock scope * add Destroy(onlyEmpty: true) test * add Destroy(onlyEmpty: false) test * remove unused `IsEmpty()` * change literal `8` to `SuperBlockSize`
79 lines
2.2 KiB
Go
79 lines
2.2 KiB
Go
package shell
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import (
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"flag"
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"github.com/seaweedfs/seaweedfs/weed/pb"
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"github.com/seaweedfs/seaweedfs/weed/pb/master_pb"
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"github.com/seaweedfs/seaweedfs/weed/storage/needle"
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"github.com/seaweedfs/seaweedfs/weed/storage/super_block"
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"io"
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"log"
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"time"
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)
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func init() {
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Commands = append(Commands, &commandVolumeDeleteEmpty{})
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}
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type commandVolumeDeleteEmpty struct {
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}
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func (c *commandVolumeDeleteEmpty) Name() string {
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return "volume.deleteEmpty"
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}
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func (c *commandVolumeDeleteEmpty) Help() string {
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return `delete empty volumes from all volume servers
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volume.deleteEmpty -quietFor=24h -force
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This command deletes all empty volumes from one volume server.
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`
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}
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func (c *commandVolumeDeleteEmpty) Do(args []string, commandEnv *CommandEnv, writer io.Writer) (err error) {
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volDeleteCommand := flag.NewFlagSet(c.Name(), flag.ContinueOnError)
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quietPeriod := volDeleteCommand.Duration("quietFor", 24*time.Hour, "select empty volumes with no recent writes, avoid newly created ones")
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applyBalancing := volDeleteCommand.Bool("force", false, "apply to delete empty volumes")
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if err = volDeleteCommand.Parse(args); err != nil {
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return nil
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}
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infoAboutSimulationMode(writer, *applyBalancing, "-force")
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if err = commandEnv.confirmIsLocked(args); err != nil {
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return
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}
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// collect topology information
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topologyInfo, _, err := collectTopologyInfo(commandEnv, 0)
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if err != nil {
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return err
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}
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quietSeconds := int64(*quietPeriod / time.Second)
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nowUnixSeconds := time.Now().Unix()
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eachDataNode(topologyInfo, func(dc string, rack RackId, dn *master_pb.DataNodeInfo) {
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for _, diskInfo := range dn.DiskInfos {
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for _, v := range diskInfo.VolumeInfos {
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if v.Size <= super_block.SuperBlockSize && v.ModifiedAtSecond > 0 && v.ModifiedAtSecond+quietSeconds < nowUnixSeconds {
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if *applyBalancing {
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log.Printf("deleting empty volume %d from %s", v.Id, dn.Id)
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if deleteErr := deleteVolume(commandEnv.option.GrpcDialOption, needle.VolumeId(v.Id),
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pb.NewServerAddressFromDataNode(dn), true); deleteErr != nil {
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err = deleteErr
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}
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continue
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} else {
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log.Printf("empty volume %d from %s", v.Id, dn.Id)
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}
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}
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}
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}
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})
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return
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}
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