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59 lines
2.0 KiB
59 lines
2.0 KiB
package command
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import (
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"github.com/seaweedfs/seaweedfs/weed/glog"
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"github.com/seaweedfs/seaweedfs/weed/storage"
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"github.com/seaweedfs/seaweedfs/weed/storage/needle"
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"github.com/seaweedfs/seaweedfs/weed/util"
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)
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func init() {
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cmdCompact.Run = runCompact // break init cycle
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}
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var cmdCompact = &Command{
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UsageLine: "compact -dir=/tmp -volumeId=234",
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Short: "run weed tool compact on volume file",
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Long: `Force an compaction to remove deleted files from volume files.
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The compacted .dat file is stored as .cpd file.
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The compacted .idx file is stored as .cpx file.
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For method=0, it compacts based on the .dat file, works if .idx file is corrupted.
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For method=1, it compacts based on the .idx file, works if deletion happened but not written to .dat files.
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`,
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}
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var (
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compactVolumePath = cmdCompact.Flag.String("dir", ".", "data directory to store files")
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compactVolumeCollection = cmdCompact.Flag.String("collection", "", "volume collection name")
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compactVolumeId = cmdCompact.Flag.Int("volumeId", -1, "a volume id. The volume should already exist in the dir.")
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compactMethod = cmdCompact.Flag.Int("method", 0, "option to choose which compact method. use 0 (default) or 1.")
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compactVolumePreallocate = cmdCompact.Flag.Int64("preallocateMB", 0, "preallocate volume disk space")
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)
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func runCompact(cmd *Command, args []string) bool {
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if *compactVolumeId == -1 {
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return false
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}
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preallocate := *compactVolumePreallocate * (1 << 20)
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vid := needle.VolumeId(*compactVolumeId)
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v, err := storage.NewVolume(util.ResolvePath(*compactVolumePath), util.ResolvePath(*compactVolumePath), *compactVolumeCollection, vid, storage.NeedleMapInMemory, nil, nil, preallocate, needle.GetCurrentVersion(), 0, 0)
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if err != nil {
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glog.Fatalf("Load Volume [ERROR] %s\n", err)
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}
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if *compactMethod == 0 {
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if err = v.Compact(preallocate, 0); err != nil {
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glog.Fatalf("Compact Volume [ERROR] %s\n", err)
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}
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} else {
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if err = v.Compact2(preallocate, 0, nil); err != nil {
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glog.Fatalf("Compact Volume [ERROR] %s\n", err)
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}
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}
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return true
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}
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