add tool to change replication or ttl

fix https://github.com/chrislusf/seaweedfs/issues/386

1 files changed, 0 insertions, 84 deletions

diff --git a/unmaintained/change_replication/change_replication.go b/unmaintained/change_replication/change_replication.go
deleted file mode 100644
index c32d2d266..000000000
--- a/unmaintained/change_replication/change_replication.go
+++ /dev/null
@@ -1,84 +0,0 @@
-package main
-
-import (
-	"flag"
-	"fmt"
-	"os"
-	"path"
-	"strconv"
-
-	"github.com/chrislusf/seaweedfs/weed/glog"
-	"github.com/chrislusf/seaweedfs/weed/storage"
-)
-
-var (
-	fixVolumePath       = flag.String("dir", "/tmp", "data directory to store files")
-	fixVolumeCollection = flag.String("collection", "", "the volume collection name")
-	fixVolumeId         = flag.Int("volumeId", -1, "a volume id. The volume should already exist in the dir. The volume index file should not exist.")
-	targetReplica       = flag.String("replication", "", "If just empty, only print out current replication setting.")
-)
-
-/*
-This is to change replication factor in .dat file header. Need to shut down the volume servers
-that has those volumes.
-
-1. fix the .dat file in place
-	// just see the replication setting
-	go run change_replication.go -volumeId=9 -dir=/Users/chrislu/Downloads
-		Current Volume Replication: 000
-	// fix the replication setting
-	go run change_replication.go -volumeId=9 -dir=/Users/chrislu/Downloads -replication 001
-		Current Volume Replication: 000
-		Changing to: 001
-		Done.
-
-2. copy the fixed .dat and related .idx files to some remote server
-3. restart volume servers or start new volume servers.
-*/
-func main() {
-	flag.Parse()
-	fileName := strconv.Itoa(*fixVolumeId)
-	if *fixVolumeCollection != "" {
-		fileName = *fixVolumeCollection + "_" + fileName
-	}
-	datFile, err := os.OpenFile(path.Join(*fixVolumePath, fileName+".dat"), os.O_RDWR, 0644)
-	if err != nil {
-		glog.Fatalf("Open Volume Data File [ERROR]: %v", err)
-	}
-	defer datFile.Close()
-
-	header := make([]byte, storage.SuperBlockSize)
-	if _, e := datFile.Read(header); e != nil {
-		glog.Fatalf("cannot read volume %s super block: %v", fileName+".dat", e)
-	}
-	superBlock, err := storage.ParseSuperBlock(header)
-
-	if err != nil {
-		glog.Fatalf("cannot parse existing super block: %v", err)
-	}
-
-	fmt.Printf("Current Volume Replication: %s\n", superBlock.ReplicaPlacement)
-
-	if *targetReplica == "" {
-		return
-	}
-
-	replica, err := storage.NewReplicaPlacementFromString(*targetReplica)
-
-	if err != nil {
-		glog.Fatalf("cannot parse target replica %s: %v", *targetReplica, err)
-	}
-
-	fmt.Printf("Changing to: %s\n", replica)
-
-	superBlock.ReplicaPlacement = replica
-
-	header = superBlock.Bytes()
-
-	if n, e := datFile.WriteAt(header, 0); n == 0 || e != nil {
-		glog.Fatalf("cannot write super block: %v", e)
-	}
-
-	fmt.Println("Done.")
-
-}