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weed volume: disable block cache on leveldb

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saving 8MB for each volume, but at the cost of slower (offset,size) lookup
This commit is contained in:
Chris Lu
2019-04-09 00:18:32 -07:00
parent 6d4c44a85c
commit a55e708d36
1 changed files with 4 additions and 1 deletions
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5
weed/filer2/leveldb/leveldb_store.go
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@@ -4,6 +4,7 @@ import (
"bytes" "bytes"
"context" "context"
"fmt" "fmt"
"github.com/syndtr/goleveldb/leveldb/opt"
"github.com/chrislusf/seaweedfs/weed/filer2" "github.com/chrislusf/seaweedfs/weed/filer2"
"github.com/chrislusf/seaweedfs/weed/glog" "github.com/chrislusf/seaweedfs/weed/glog"
@@ -39,7 +40,9 @@ func (store *LevelDBStore) initialize(dir string) (err error) {
return fmt.Errorf("Check Level Folder %s Writable: %s", dir, err) return fmt.Errorf("Check Level Folder %s Writable: %s", dir, err)
} }
if store.db, err = leveldb.OpenFile(dir, nil); err != nil { if store.db, err = leveldb.OpenFile(dir, &opt.Options{
BlockCacheCapacity: -1, // default value is 8MiB
}); err != nil {
glog.Infof("filer store open dir %s: %v", dir, err) glog.Infof("filer store open dir %s: %v", dir, err)
return return
} }