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volume server evacuate to target server

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This commit is contained in:
Konstantin Lebedev 2022-07-11 16:58:15 +05:00
parent 37578929d4
commit 4236c36599
1 changed files with 21 additions and 8 deletions
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29
weed/shell/command_volume_server_evacuate.go
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@ -47,7 +47,7 @@ func (c *commandVolumeServerEvacuate) Do(args []string, commandEnv *CommandEnv,
vsEvacuateCommand := flag.NewFlagSet(c.Name(), flag.ContinueOnError)
volumeServer := vsEvacuateCommand.String("node", "", "<host>:<port> of the volume server")
c.targetServer = *vsEvacuateCommand.String("target", "", "<host>:<port> of target volume")
targetServer := vsEvacuateCommand.String("target", "", "<host>:<port> of target volume")
skipNonMoveable := vsEvacuateCommand.Bool("skipNonMoveable", false, "skip volumes that can not be moved")
applyChange := vsEvacuateCommand.Bool("force", false, "actually apply the changes")
retryCount := vsEvacuateCommand.Int("retry", 0, "how many times to retry")
@ -63,6 +63,9 @@ func (c *commandVolumeServerEvacuate) Do(args []string, commandEnv *CommandEnv,
if *volumeServer == "" {
return fmt.Errorf("need to specify volume server by -node=<host>:<port>")
}
if *targetServer != "" {
c.targetServer = *targetServer
}
for i := 0; i < *retryCount+1; i++ {
if err = c.volumeServerEvacuate(commandEnv, *volumeServer, *skipNonMoveable, *applyChange, writer); err == nil {
return nil
@ -103,14 +106,27 @@ func (c *commandVolumeServerEvacuate) evacuateNormalVolumes(commandEnv *CommandE
if thisNode == nil {
return fmt.Errorf("%s is not found in this cluster", volumeServer)
}
if c.targetServer != "" {
targetServerFound := false
for _, otherNode := range otherNodes {
if otherNode.info.Id == c.targetServer {
otherNodes = []*Node{otherNode}
targetServerFound = true
break
}
}
if !targetServerFound {
return fmt.Errorf("target %s is not found in this cluster", c.targetServer)
}
}
// move away normal volumes
volumeReplicas, _ := collectVolumeReplicaLocations(topologyInfo)
for _, diskInfo := range thisNode.info.DiskInfos {
for _, vol := range diskInfo.VolumeInfos {
hasMoved, err := moveAwayOneNormalVolume(commandEnv, volumeReplicas, vol, thisNode, otherNodes, applyChange)
hasMoved, err := c.moveAwayOneNormalVolume(commandEnv, volumeReplicas, vol, thisNode, otherNodes, applyChange)
if err != nil {
return fmt.Errorf("move away volume %d from %s: %v", vol.Id, volumeServer, err)
fmt.Fprintf(writer, "move away volume %d from %s: %v", vol.Id, volumeServer, err)
}
if !hasMoved {
if skipNonMoveable {
@ -138,7 +154,7 @@ func (c *commandVolumeServerEvacuate) evacuateEcVolumes(commandEnv *CommandEnv,
for _, ecShardInfo := range diskInfo.EcShardInfos {
hasMoved, err := c.moveAwayOneEcVolume(commandEnv, ecShardInfo, thisNode, otherNodes, applyChange)
if err != nil {
return fmt.Errorf("move away volume %d from %s: %v", ecShardInfo.Id, volumeServer, err)
fmt.Fprintf(writer, "move away volume %d from %s: %v", ecShardInfo.Id, volumeServer, err)
}
if !hasMoved {
if skipNonMoveable {
@ -160,9 +176,6 @@ func (c *commandVolumeServerEvacuate) moveAwayOneEcVolume(commandEnv *CommandEnv
})
for i := 0; i < len(otherNodes); i++ {
emptyNode := otherNodes[i]
if c.targetServer != "" && c.targetServer != emptyNode.info.Id {
continue
}
collectionPrefix := ""
if ecShardInfo.Collection != "" {
collectionPrefix = ecShardInfo.Collection + "_"
@ -184,7 +197,7 @@ func (c *commandVolumeServerEvacuate) moveAwayOneEcVolume(commandEnv *CommandEnv
return
}
func moveAwayOneNormalVolume(commandEnv *CommandEnv, volumeReplicas map[uint32][]*VolumeReplica, vol *master_pb.VolumeInformationMessage, thisNode *Node, otherNodes []*Node, applyChange bool) (hasMoved bool, err error) {
func (c *commandVolumeServerEvacuate) moveAwayOneNormalVolume(commandEnv *CommandEnv, volumeReplicas map[uint32][]*VolumeReplica, vol *master_pb.VolumeInformationMessage, thisNode *Node, otherNodes []*Node, applyChange bool) (hasMoved bool, err error) {
fn := capacityByFreeVolumeCount(types.ToDiskType(vol.DiskType))
for _, n := range otherNodes {
n.selectVolumes(func(v *master_pb.VolumeInformationMessage) bool {