lsm/seaweedfs
1
0
Fork 0
mirror of https://github.com/seaweedfs/seaweedfs.git synced 2025-12-17 17:51:20 +08:00
Code Issues Actions 18 Packages Projects Releases Wiki Activity

use async write to persistent file to disk - part1

Browse Source
This commit is contained in:
zhangsong
2020-05-03 19:22:45 +08:00
parent 78422c2f69
commit f9e8702bb4
4 changed files with 241 additions and 14 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
weed/storage/volume.go
View File

@@ -33,6 +33,7 @@ type Volume struct {
super_block.SuperBlock
dataFileAccessLock sync.RWMutex
asyncRequestsChan chan *needle.AsyncRequest
lastModifiedTsSeconds uint64 //unix time in seconds
lastAppendAtNs uint64 //unix time in nanoseconds
@@ -46,12 +47,15 @@ type Volume struct {
func NewVolume(dirname string, collection string, id needle.VolumeId, needleMapKind NeedleMapType, replicaPlacement *super_block.ReplicaPlacement, ttl *needle.TTL, preallocate int64, memoryMapMaxSizeMb uint32) (v *Volume, e error) {
// if replicaPlacement is nil, the superblock will be loaded from disk
v = &Volume{dir: dirname, Collection: collection, Id: id, MemoryMapMaxSizeMb: memoryMapMaxSizeMb}
v = &Volume{dir: dirname, Collection: collection, Id: id, MemoryMapMaxSizeMb: memoryMapMaxSizeMb,
asyncRequestsChan: make(chan *needle.AsyncRequest, 128)}
v.SuperBlock = super_block.SuperBlock{ReplicaPlacement: replicaPlacement, Ttl: ttl}
v.needleMapKind = needleMapKind
e = v.load(true, true, needleMapKind, preallocate)
v.startWorker()
return
}
func (v *Volume) String() string {
return fmt.Sprintf("Id:%v, dir:%s, Collection:%s, dataFile:%v, nm:%v, noWrite:%v canDelete:%v", v.Id, v.dir, v.Collection, v.DataBackend, v.nm, v.noWriteOrDelete || v.noWriteCanDelete, v.noWriteCanDelete)
}
@@ -65,6 +69,7 @@ func VolumeFileName(dir string, collection string, id int) (fileName string) {
}
return
}
func (v *Volume) FileName() (fileName string) {
return VolumeFileName(v.dir, v.Collection, int(v.Id))
}