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add leveldb support for needle map

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This supposedly should reduce memory consumption. However, for tests
with millions of, this shows consuming more memories. Need to see
whether this will work out. If not, later boltdb will be tested.
This commit is contained in:
chrislusf
2015-03-27 16:34:58 -07:00
parent add99ed57e
commit 020ba6c9a8
13 changed files with 350 additions and 256 deletions
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4
go/storage/volume_vacuum.go
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@@ -38,7 +38,7 @@ func (v *Volume) commitCompact() error {
}
//glog.V(3).Infof("Pretending to be vacuuming...")
//time.Sleep(20 * time.Second)
if e = v.load(true, false); e != nil {
if e = v.load(true, false, false); e != nil {
return e
}
return nil
@@ -73,7 +73,7 @@ func (v *Volume) copyDataAndGenerateIndexFile(dstName, idxName string) (err erro
nv, ok := v.nm.Get(n.Id)
glog.V(4).Infoln("needle expected offset ", offset, "ok", ok, "nv", nv)
if ok && int64(nv.Offset)*NeedlePaddingSize == offset && nv.Size > 0 {
if _, err = nm.Put(n.Id, uint32(new_offset/NeedlePaddingSize), n.Size); err != nil {
if err = nm.Put(n.Id, uint32(new_offset/NeedlePaddingSize), n.Size); err != nil {
return fmt.Errorf("cannot put needle: %s", err)
}
if _, err = n.Append(dst, v.Version()); err != nil {