mirror of
https://github.com/seaweedfs/seaweedfs.git
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121 lines
3.6 KiB
Go
121 lines
3.6 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/seaweedfs/seaweedfs/weed/pb"
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"io"
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"path/filepath"
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"github.com/seaweedfs/seaweedfs/weed/operation"
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"github.com/seaweedfs/seaweedfs/weed/pb/master_pb"
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"github.com/seaweedfs/seaweedfs/weed/pb/volume_server_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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)
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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, _ 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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collectionPattern := configureReplicationCommand.String("collectionPattern", "", "match with wildcard characters '*' and '?'")
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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(args); 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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// 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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vid := needle.VolumeId(*volumeIdInt)
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volumeFilter := getVolumeFilter(replicaPlacement, uint32(vid), *collectionPattern)
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// find all data nodes with volumes that needs replication change
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eachDataNode(topologyInfo, func(dc string, rack RackId, dn *master_pb.DataNodeInfo) {
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var targetVolumeIds []uint32
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for _, diskInfo := range dn.DiskInfos {
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for _, v := range diskInfo.VolumeInfos {
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if volumeFilter(v) {
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targetVolumeIds = append(targetVolumeIds, v.Id)
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}
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}
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}
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if len(targetVolumeIds) == 0 {
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return
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}
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err = operation.WithVolumeServerClient(false, pb.NewServerAddressFromDataNode(dn), commandEnv.option.GrpcDialOption, func(volumeServerClient volume_server_pb.VolumeServerClient) error {
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for _, targetVolumeId := range targetVolumeIds {
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resp, configureErr := volumeServerClient.VolumeConfigure(context.Background(), &volume_server_pb.VolumeConfigureRequest{
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VolumeId: targetVolumeId,
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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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}
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return nil
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})
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if err != nil {
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return
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}
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})
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return err
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}
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func getVolumeFilter(replicaPlacement *super_block.ReplicaPlacement, volumeId uint32, collectionPattern string) func(message *master_pb.VolumeInformationMessage) bool {
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replicaPlacementInt32 := uint32(replicaPlacement.Byte())
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if volumeId > 0 {
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return func(v *master_pb.VolumeInformationMessage) bool {
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return v.Id == volumeId && v.ReplicaPlacement != replicaPlacementInt32
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}
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}
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return func(v *master_pb.VolumeInformationMessage) bool {
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matched, err := filepath.Match(collectionPattern, v.Collection)
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if err != nil {
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return false
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}
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return matched
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}
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}
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