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108 lines
3.2 KiB
108 lines
3.2 KiB
// Copyright 2016 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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//go:build !race
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// +build !race
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package tikv
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import (
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"context"
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"sync/atomic"
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. "github.com/pingcap/check"
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"github.com/pingcap/tidb/kv"
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)
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// TestCommitMultipleRegions tests commit multiple regions.
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// The test takes too long under the race detector.
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func (s *testCommitterSuite) TestCommitMultipleRegions(c *C) {
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m := make(map[string]string)
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for i := 0; i < 100; i++ {
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k, v := randKV(10, 10)
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m[k] = v
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}
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s.mustCommit(c, m)
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// Test big values.
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m = make(map[string]string)
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for i := 0; i < 50; i++ {
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k, v := randKV(11, txnCommitBatchSize/7)
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m[k] = v
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}
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s.mustCommit(c, m)
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}
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func (s *testTiclientSuite) TestSplitRegionIn2PC(c *C) {
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const preSplitThresholdInTest = 500
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old := atomic.LoadUint32(&preSplitDetectThreshold)
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defer atomic.StoreUint32(&preSplitDetectThreshold, old)
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atomic.StoreUint32(&preSplitDetectThreshold, preSplitThresholdInTest)
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old = atomic.LoadUint32(&preSplitSizeThreshold)
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defer atomic.StoreUint32(&preSplitSizeThreshold, old)
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atomic.StoreUint32(&preSplitSizeThreshold, 5000)
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bo := NewBackofferWithVars(context.Background(), 1, nil)
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checkKeyRegion := func(bo *Backoffer, start, end []byte, checker Checker) {
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// Check regions after split.
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loc1, err := s.store.regionCache.LocateKey(bo, start)
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c.Assert(err, IsNil)
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loc2, err := s.store.regionCache.LocateKey(bo, end)
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c.Assert(err, IsNil)
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c.Assert(loc1.Region.id, checker, loc2.Region.id)
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}
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mode := []string{"optimistic", "pessimistic"}
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var (
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startKey []byte
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endKey []byte
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)
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ctx := context.Background()
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for _, m := range mode {
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if m == "optimistic" {
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startKey = encodeKey(s.prefix, s08d("key", 0))
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endKey = encodeKey(s.prefix, s08d("key", preSplitThresholdInTest))
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} else {
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startKey = encodeKey(s.prefix, s08d("pkey", 0))
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endKey = encodeKey(s.prefix, s08d("pkey", preSplitThresholdInTest))
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}
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// Check before test.
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checkKeyRegion(bo, startKey, endKey, Equals)
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txn := s.beginTxn(c)
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if m == "pessimistic" {
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txn.SetOption(kv.Pessimistic, true)
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lockCtx := &kv.LockCtx{}
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lockCtx.ForUpdateTS = txn.startTS
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keys := make([]kv.Key, 0, preSplitThresholdInTest)
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for i := 0; i < preSplitThresholdInTest; i++ {
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keys = append(keys, encodeKey(s.prefix, s08d("pkey", i)))
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}
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err := txn.LockKeys(ctx, lockCtx, keys...)
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c.Assert(err, IsNil)
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checkKeyRegion(bo, startKey, endKey, Not(Equals))
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}
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var err error
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for i := 0; i < preSplitThresholdInTest; i++ {
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if m == "optimistic" {
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err = txn.Set(encodeKey(s.prefix, s08d("key", i)), valueBytes(i))
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} else {
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err = txn.Set(encodeKey(s.prefix, s08d("pkey", i)), valueBytes(i))
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}
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c.Assert(err, IsNil)
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}
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err = txn.Commit(context.Background())
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c.Assert(err, IsNil)
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// Check region split after test.
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checkKeyRegion(bo, startKey, endKey, Not(Equals))
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}
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}
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