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0fe286a6ca
large filer db may see high CPU and disk usage due to background compaction
36 lines
705 B
Go
36 lines
705 B
Go
package main
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import (
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"flag"
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"log"
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"github.com/syndtr/goleveldb/leveldb"
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"github.com/syndtr/goleveldb/leveldb/opt"
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"github.com/syndtr/goleveldb/leveldb/util"
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)
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var (
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dir = flag.String("dir", ".", "data directory to store leveldb files")
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)
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func main() {
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flag.Parse()
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opts := &opt.Options{
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BlockCacheCapacity: 32 * 1024 * 1024, // default value is 8MiB
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WriteBuffer: 16 * 1024 * 1024, // default value is 4MiB
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CompactionTableSizeMultiplier: 10,
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OpenFilesCacheCapacity: -1,
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}
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db, err := leveldb.OpenFile(*dir, opts)
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if err != nil {
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log.Fatal(err)
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}
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defer db.Close()
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if err := db.CompactRange(util.Range{}); err != nil {
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log.Fatal(err)
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}
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}
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