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seaweedfs/unmaintained/compact_leveldb/compact_leveldb.go
Chris Lu 0fe286a6ca filer: optimization for leveldb, add leveldb2
large filer db may see high CPU and disk usage due to background compaction
2019-05-17 17:33:49 -07:00

36 lines
705 B
Go

package main
import (
"flag"
"log"
"github.com/syndtr/goleveldb/leveldb"
"github.com/syndtr/goleveldb/leveldb/opt"
"github.com/syndtr/goleveldb/leveldb/util"
)
var (
dir = flag.String("dir", ".", "data directory to store leveldb files")
)
func main() {
flag.Parse()
opts := &opt.Options{
BlockCacheCapacity: 32 * 1024 * 1024, // default value is 8MiB
WriteBuffer: 16 * 1024 * 1024, // default value is 4MiB
CompactionTableSizeMultiplier: 10,
OpenFilesCacheCapacity: -1,
}
db, err := leveldb.OpenFile(*dir, opts)
if err != nil {
log.Fatal(err)
}
defer db.Close()
if err := db.CompactRange(util.Range{}); err != nil {
log.Fatal(err)
}
}