mirror of
https://github.com/seaweedfs/seaweedfs.git
synced 2024-01-19 02:48:24 +00:00
109 lines
2.9 KiB
Go
109 lines
2.9 KiB
Go
package shell
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import (
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"context"
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"errors"
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"flag"
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"fmt"
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"github.com/chrislusf/seaweedfs/weed/pb"
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"io"
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"github.com/chrislusf/seaweedfs/weed/operation"
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"github.com/chrislusf/seaweedfs/weed/pb/master_pb"
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"github.com/chrislusf/seaweedfs/weed/pb/volume_server_pb"
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"github.com/chrislusf/seaweedfs/weed/storage/needle"
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"github.com/chrislusf/seaweedfs/weed/storage/super_block"
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)
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func init() {
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Commands = append(Commands, &commandVolumeConfigureReplication{})
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}
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type commandVolumeConfigureReplication struct {
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}
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func (c *commandVolumeConfigureReplication) Name() string {
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return "volume.configure.replication"
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}
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func (c *commandVolumeConfigureReplication) Help() string {
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return `change volume replication value
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This command changes a volume replication value. It should be followed by "volume.fix.replication".
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`
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}
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func (c *commandVolumeConfigureReplication) Do(args []string, commandEnv *CommandEnv, writer io.Writer) (err error) {
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configureReplicationCommand := flag.NewFlagSet(c.Name(), flag.ContinueOnError)
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volumeIdInt := configureReplicationCommand.Int("volumeId", 0, "the volume id")
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replicationString := configureReplicationCommand.String("replication", "", "the intended replication value")
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if err = configureReplicationCommand.Parse(args); err != nil {
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return nil
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}
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if err = commandEnv.confirmIsLocked(); err != nil {
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return
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}
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if *replicationString == "" {
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return fmt.Errorf("empty replication value")
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}
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replicaPlacement, err := super_block.NewReplicaPlacementFromString(*replicationString)
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if err != nil {
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return fmt.Errorf("replication format: %v", err)
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}
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replicaPlacementInt32 := uint32(replicaPlacement.Byte())
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// collect topology information
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topologyInfo, _, err := collectTopologyInfo(commandEnv)
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if err != nil {
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return err
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}
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vid := needle.VolumeId(*volumeIdInt)
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// find all data nodes with volumes that needs replication change
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var allLocations []location
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eachDataNode(topologyInfo, func(dc string, rack RackId, dn *master_pb.DataNodeInfo) {
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loc := newLocation(dc, string(rack), dn)
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for _, diskInfo := range dn.DiskInfos {
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for _, v := range diskInfo.VolumeInfos {
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if v.Id == uint32(vid) && v.ReplicaPlacement != replicaPlacementInt32 {
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allLocations = append(allLocations, loc)
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continue
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}
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}
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}
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})
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if len(allLocations) == 0 {
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return fmt.Errorf("no volume needs change")
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}
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for _, dst := range allLocations {
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err := operation.WithVolumeServerClient(pb.NewServerAddressFromDataNode(dst.dataNode), commandEnv.option.GrpcDialOption, func(volumeServerClient volume_server_pb.VolumeServerClient) error {
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resp, configureErr := volumeServerClient.VolumeConfigure(context.Background(), &volume_server_pb.VolumeConfigureRequest{
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VolumeId: uint32(vid),
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Replication: replicaPlacement.String(),
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})
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if configureErr != nil {
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return configureErr
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}
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if resp.Error != "" {
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return errors.New(resp.Error)
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}
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return nil
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})
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if err != nil {
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return err
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}
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}
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return nil
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}
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