88 lines
2.0 KiB
Go
88 lines
2.0 KiB
Go
// Copyright 2015 PingCAP, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package localstore
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import (
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"time"
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. "github.com/pingcap/check"
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"github.com/pingcap/tidb/kv"
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"github.com/pingcap/tidb/store/localstore/engine"
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)
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var _ = Suite(&localstoreCompactorTestSuite{})
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type localstoreCompactorTestSuite struct {
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}
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func count(db engine.DB) int {
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it, _ := db.Seek([]byte{0})
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defer it.Release()
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totalCnt := 0
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for it.Next() {
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totalCnt++
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}
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return totalCnt
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}
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func (s *localstoreCompactorTestSuite) TestCompactor(c *C) {
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store := createMemStore()
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db := store.(*dbStore).db
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store.(*dbStore).compactor.Stop()
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policy := kv.CompactPolicy{
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SafePoint: 500,
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BatchDeleteCnt: 1,
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TriggerInterval: 100 * time.Millisecond,
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}
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compactor := newLocalCompactor(policy, db)
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store.(*dbStore).compactor = compactor
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compactor.Start()
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txn, _ := store.Begin()
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txn.Set([]byte("a"), []byte("1"))
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txn.Commit()
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txn, _ = store.Begin()
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txn.Set([]byte("a"), []byte("2"))
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txn.Commit()
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txn, _ = store.Begin()
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txn.Set([]byte("a"), []byte("3"))
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txn.Commit()
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txn, _ = store.Begin()
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txn.Set([]byte("a"), []byte("3"))
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txn.Commit()
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txn, _ = store.Begin()
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txn.Set([]byte("a"), []byte("4"))
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txn.Commit()
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txn, _ = store.Begin()
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txn.Set([]byte("a"), []byte("5"))
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txn.Commit()
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t := count(db)
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c.Assert(t, Equals, 7)
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// Simulating timeout
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time.Sleep(1 * time.Second)
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// Touch a, tigger GC
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txn, _ = store.Begin()
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txn.Set([]byte("a"), []byte("b"))
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txn.Commit()
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time.Sleep(1 * time.Second)
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// Do background GC
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t = count(db)
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c.Assert(t, Equals, 3)
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compactor.Stop()
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}
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