1 files changed, 112 insertions, 0 deletions
diff --git a/weed/shell/command_volume_tier.go b/weed/shell/command_volume_tier.go
new file mode 100644
index 000000000..9dda37bd4
--- /dev/null
+++ b/weed/shell/command_volume_tier.go
@@ -0,0 +1,112 @@
+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
+
+}