lsm/seaweedfs
1
0
Fork 0
mirror of https://github.com/seaweedfs/seaweedfs.git synced 2025-09-19 05:59:23 +08:00
Code Issues Actions Packages Projects Releases Wiki Activity

volume: add "-dir.idx" option for separate index storage

Browse Source 
fix https://github.com/chrislusf/seaweedfs/issues/1265
This commit is contained in:
Chris Lu
2020-11-27 03:17:10 -08:00
parent 3c229eb677
commit 6d30b21b10
22 changed files with 196 additions and 145 deletions
Download Patch File Download Diff File Expand all files Collapse all files

65
weed/storage/volume_loading.go
View File

@@ -23,7 +23,6 @@ func loadVolumeWithoutIndex(dirname string, collection string, id needle.VolumeI
}
func (v *Volume) load(alsoLoadIndex bool, createDatIfMissing bool, needleMapKind NeedleMapType, preallocate int64) (err error) {
fileName := v.FileName()
alreadyHasSuperBlock := false
hasVolumeInfoFile := v.maybeLoadVolumeInfo() && v.volumeInfo.Version != 0
@@ -34,17 +33,17 @@ func (v *Volume) load(alsoLoadIndex bool, createDatIfMissing bool, needleMapKind
glog.V(0).Infof("loading volume %d from remote %v", v.Id, v.volumeInfo.Files)
v.LoadRemoteFile()
alreadyHasSuperBlock = true
} else if exists, canRead, canWrite, modifiedTime, fileSize := util.CheckFile(fileName + ".dat"); exists {
} else if exists, canRead, canWrite, modifiedTime, fileSize := util.CheckFile(v.FileName(".dat")); exists {
// open dat file
if !canRead {
return fmt.Errorf("cannot read Volume Data file %s.dat", fileName)
return fmt.Errorf("cannot read Volume Data file %s", v.FileName(".dat"))
}
var dataFile *os.File
if canWrite {
dataFile, err = os.OpenFile(fileName+".dat", os.O_RDWR|os.O_CREATE, 0644)
dataFile, err = os.OpenFile(v.FileName(".dat"), os.O_RDWR|os.O_CREATE, 0644)
} else {
glog.V(0).Infoln("opening " + fileName + ".dat in READONLY mode")
dataFile, err = os.Open(fileName + ".dat")
glog.V(0).Infof("opening %s in READONLY mode", v.FileName(".dat"))
dataFile, err = os.Open(v.FileName(".dat"))
v.noWriteOrDelete = true
}
v.lastModifiedTsSeconds = uint64(modifiedTime.Unix())
@@ -54,17 +53,17 @@ func (v *Volume) load(alsoLoadIndex bool, createDatIfMissing bool, needleMapKind
v.DataBackend = backend.NewDiskFile(dataFile)
} else {
if createDatIfMissing {
v.DataBackend, err = backend.CreateVolumeFile(fileName+".dat", preallocate, v.MemoryMapMaxSizeMb)
v.DataBackend, err = backend.CreateVolumeFile(v.FileName(".dat"), preallocate, v.MemoryMapMaxSizeMb)
} else {
return fmt.Errorf("Volume Data file %s.dat does not exist.", fileName)
return fmt.Errorf("volume data file %s does not exist", v.FileName(".dat"))
}
}
if err != nil {
if !os.IsPermission(err) {
return fmt.Errorf("cannot load Volume Data %s.dat: %v", fileName, err)
return fmt.Errorf("cannot load volume data %s: %v", v.FileName(".dat"), err)
} else {
return fmt.Errorf("load data file %s.dat: %v", fileName, err)
return fmt.Errorf("load data file %s: %v", v.FileName(".dat"), err)
}
}
@@ -72,21 +71,27 @@ func (v *Volume) load(alsoLoadIndex bool, createDatIfMissing bool, needleMapKind
err = v.readSuperBlock()
} else {
if !v.SuperBlock.Initialized() {
return fmt.Errorf("volume %s.dat not initialized", fileName)
return fmt.Errorf("volume %s not initialized", v.FileName(".dat"))
}
err = v.maybeWriteSuperBlock()
}
if err == nil && alsoLoadIndex {
// adjust for existing volumes with .idx together with .dat files
if v.dirIdx != v.dir {
if util.FileExists(v.DataFileName()+".idx") {
v.dirIdx = v.dir
}
}
var indexFile *os.File
if v.noWriteOrDelete {
glog.V(0).Infoln("open to read file", fileName+".idx")
if indexFile, err = os.OpenFile(fileName+".idx", os.O_RDONLY, 0644); err != nil {
return fmt.Errorf("cannot read Volume Index %s.idx: %v", fileName, err)
glog.V(0).Infoln("open to read file", v.FileName(".idx"))
if indexFile, err = os.OpenFile(v.FileName(".idx"), os.O_RDONLY, 0644); err != nil {
return fmt.Errorf("cannot read Volume Index %s: %v", v.FileName(".idx"), err)
}
} else {
glog.V(1).Infoln("open to write file", fileName+".idx")
if indexFile, err = os.OpenFile(fileName+".idx", os.O_RDWR|os.O_CREATE, 0644); err != nil {
return fmt.Errorf("cannot write Volume Index %s.idx: %v", fileName, err)
glog.V(1).Infoln("open to write file", v.FileName(".idx"))
if indexFile, err = os.OpenFile(v.FileName(".idx"), os.O_RDWR|os.O_CREATE, 0644); err != nil {
return fmt.Errorf("cannot write Volume Index %s: %v", v.FileName(".idx"), err)
}
}
if v.lastAppendAtNs, err = CheckAndFixVolumeDataIntegrity(v, indexFile); err != nil {
@@ -95,45 +100,45 @@ func (v *Volume) load(alsoLoadIndex bool, createDatIfMissing bool, needleMapKind
}
if v.noWriteOrDelete || v.noWriteCanDelete {
if v.nm, err = NewSortedFileNeedleMap(fileName, indexFile); err != nil {
glog.V(0).Infof("loading sorted db %s error: %v", fileName+".sdx", err)
if v.nm, err = NewSortedFileNeedleMap(v.IndexFileName(), indexFile); err != nil {
glog.V(0).Infof("loading sorted db %s error: %v", v.FileName(".sdx"), err)
}
} else {
switch needleMapKind {
case NeedleMapInMemory:
glog.V(0).Infoln("loading index", fileName+".idx", "to memory")
glog.V(0).Infoln("loading index", v.FileName(".idx"), "to memory")
if v.nm, err = LoadCompactNeedleMap(indexFile); err != nil {
glog.V(0).Infof("loading index %s to memory error: %v", fileName+".idx", err)
glog.V(0).Infof("loading index %s to memory error: %v", v.FileName(".idx"), err)
}
case NeedleMapLevelDb:
glog.V(0).Infoln("loading leveldb", fileName+".ldb")
glog.V(0).Infoln("loading leveldb", v.FileName(".ldb"))
opts := &opt.Options{
BlockCacheCapacity: 2 * 1024 * 1024, // default value is 8MiB
WriteBuffer: 1 * 1024 * 1024, // default value is 4MiB
CompactionTableSizeMultiplier: 10, // default value is 1
}
if v.nm, err = NewLevelDbNeedleMap(fileName+".ldb", indexFile, opts); err != nil {
glog.V(0).Infof("loading leveldb %s error: %v", fileName+".ldb", err)
if v.nm, err = NewLevelDbNeedleMap(v.FileName(".ldb"), indexFile, opts); err != nil {
glog.V(0).Infof("loading leveldb %s error: %v", v.FileName(".ldb"), err)
}
case NeedleMapLevelDbMedium:
glog.V(0).Infoln("loading leveldb medium", fileName+".ldb")
glog.V(0).Infoln("loading leveldb medium", v.FileName(".ldb"))
opts := &opt.Options{
BlockCacheCapacity: 4 * 1024 * 1024, // default value is 8MiB
WriteBuffer: 2 * 1024 * 1024, // default value is 4MiB
CompactionTableSizeMultiplier: 10, // default value is 1
}
if v.nm, err = NewLevelDbNeedleMap(fileName+".ldb", indexFile, opts); err != nil {
glog.V(0).Infof("loading leveldb %s error: %v", fileName+".ldb", err)
if v.nm, err = NewLevelDbNeedleMap(v.FileName(".ldb"), indexFile, opts); err != nil {
glog.V(0).Infof("loading leveldb %s error: %v", v.FileName(".ldb"), err)
}
case NeedleMapLevelDbLarge:
glog.V(0).Infoln("loading leveldb large", fileName+".ldb")
glog.V(0).Infoln("loading leveldb large", v.FileName(".ldb"))
opts := &opt.Options{
BlockCacheCapacity: 8 * 1024 * 1024, // default value is 8MiB
WriteBuffer: 4 * 1024 * 1024, // default value is 4MiB
CompactionTableSizeMultiplier: 10, // default value is 1
}
if v.nm, err = NewLevelDbNeedleMap(fileName+".ldb", indexFile, opts); err != nil {
glog.V(0).Infof("loading leveldb %s error: %v", fileName+".ldb", err)
if v.nm, err = NewLevelDbNeedleMap(v.FileName(".ldb"), indexFile, opts); err != nil {
glog.V(0).Infof("loading leveldb %s error: %v", v.FileName(".ldb"), err)
}
}
}