seaweedfs/weed/shell/command_volume_tier.go
Chris Lu 0f9ba84274 s3
2019-11-27 03:09:45 -08:00

113 lines
3.3 KiB
Go

package shell
import (
"context"
"flag"
"fmt"
"io"
"time"
"github.com/chrislusf/seaweedfs/weed/operation"
"github.com/chrislusf/seaweedfs/weed/pb/volume_server_pb"
"github.com/chrislusf/seaweedfs/weed/storage/needle"
"google.golang.org/grpc"
)
func init() {
Commands = append(Commands, &commandVolumeTier{})
}
type commandVolumeTier struct {
}
func (c *commandVolumeTier) Name() string {
return "volume.tier"
}
func (c *commandVolumeTier) Help() string {
return `copy the dat file of a volume to a remote tier
ec.encode [-collection=""] [-fullPercent=95] [-quietFor=1h]
ec.encode [-collection=""] [-volumeId=<volume_id>]
This command will:
1. freeze one volume
2. copy the dat file of a volume to a remote tier
`
}
func (c *commandVolumeTier) Do(args []string, commandEnv *CommandEnv, writer io.Writer) (err error) {
tierCommand := flag.NewFlagSet(c.Name(), flag.ContinueOnError)
volumeId := tierCommand.Int("volumeId", 0, "the volume id")
collection := tierCommand.String("collection", "", "the collection name")
fullPercentage := tierCommand.Float64("fullPercent", 95, "the volume reaches the percentage of max volume size")
quietPeriod := tierCommand.Duration("quietFor", 24*time.Hour, "select volumes without no writes for this period")
dest := tierCommand.String("destination", "", "the target tier name")
if err = tierCommand.Parse(args); err != nil {
return nil
}
ctx := context.Background()
vid := needle.VolumeId(*volumeId)
// volumeId is provided
if vid != 0 {
return doVolumeTier(ctx, commandEnv, *collection, vid, *dest)
}
// apply to all volumes in the collection
// reusing collectVolumeIdsForEcEncode for now
volumeIds, err := collectVolumeIdsForEcEncode(ctx, commandEnv, *collection, *fullPercentage, *quietPeriod)
if err != nil {
return err
}
fmt.Printf("tiering volumes: %v\n", volumeIds)
for _, vid := range volumeIds {
if err = doVolumeTier(ctx, commandEnv, *collection, vid, *dest); err != nil {
return err
}
}
return nil
}
func doVolumeTier(ctx context.Context, commandEnv *CommandEnv, collection string, vid needle.VolumeId, dest string) (err error) {
// find volume location
locations, found := commandEnv.MasterClient.GetLocations(uint32(vid))
if !found {
return fmt.Errorf("volume %d not found", vid)
}
// mark the volume as readonly
/*
err = markVolumeReadonly(ctx, commandEnv.option.GrpcDialOption, needle.VolumeId(vid), locations)
if err != nil {
return fmt.Errorf("mark volume %d as readonly on %s: %v", vid, locations[0].Url, err)
}
*/
// copy the .dat file to remote tier
err = copyDatToRemoteTier(ctx, commandEnv.option.GrpcDialOption, needle.VolumeId(vid), collection, locations[0].Url, dest)
if err != nil {
return fmt.Errorf("copy dat file for volume %d on %s to %s: %v", vid, locations[0].Url, dest, err)
}
return nil
}
func copyDatToRemoteTier(ctx context.Context, grpcDialOption grpc.DialOption, volumeId needle.VolumeId, collection string, sourceVolumeServer string, dest string) error {
err := operation.WithVolumeServerClient(sourceVolumeServer, grpcDialOption, func(volumeServerClient volume_server_pb.VolumeServerClient) error {
_, copyErr := volumeServerClient.VolumeTierCopyDatToRemote(ctx, &volume_server_pb.VolumeTierCopyDatToRemoteRequest{
VolumeId: uint32(volumeId),
Collection: collection,
})
return copyErr
})
return err
}