89 lines
3.2 KiB
Go
89 lines
3.2 KiB
Go
// Copyright 2022 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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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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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 executor_test
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import (
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"strconv"
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"strings"
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"testing"
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"github.com/pingcap/failpoint"
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"github.com/pingcap/tidb/config"
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"github.com/pingcap/tidb/parser/model"
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"github.com/pingcap/tidb/store/mockstore"
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"github.com/pingcap/tidb/tablecodec"
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"github.com/pingcap/tidb/testkit"
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"github.com/stretchr/testify/require"
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"github.com/tikv/client-go/v2/testutils"
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"github.com/tikv/client-go/v2/tikv"
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)
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func TestIntegrationCopCache(t *testing.T) {
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originConfig := config.GetGlobalConfig()
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config.StoreGlobalConfig(config.NewConfig())
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defer config.StoreGlobalConfig(originConfig)
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cli := &testkit.RegionProperityClient{}
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hijackClient := func(c tikv.Client) tikv.Client {
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cli.Client = c
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return cli
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}
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var cluster testutils.Cluster
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store, dom := testkit.CreateMockStoreAndDomain(t,
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mockstore.WithClusterInspector(func(c testutils.Cluster) {
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mockstore.BootstrapWithSingleStore(c)
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cluster = c
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}),
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mockstore.WithClientHijacker(hijackClient))
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tk := testkit.NewTestKit(t, store)
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tk.MustExec("use test")
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tk.MustExec("create table t (a int primary key)")
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tblInfo, err := dom.InfoSchema().TableByName(model.NewCIStr("test"), model.NewCIStr("t"))
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require.NoError(t, err)
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tid := tblInfo.Meta().ID
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tk.MustExec(`insert into t values(1),(2),(3),(4),(5),(6),(7),(8),(9),(10),(11),(12)`)
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tableStart := tablecodec.GenTableRecordPrefix(tid)
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cluster.SplitKeys(tableStart, tableStart.PrefixNext(), 6)
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require.NoError(t, failpoint.Enable("github.com/pingcap/tidb/store/mockstore/unistore/cophandler/mockCopCacheInUnistore", `return(123)`))
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defer func() {
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require.NoError(t, failpoint.Disable("github.com/pingcap/tidb/store/mockstore/unistore/cophandler/mockCopCacheInUnistore"))
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}()
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rows := tk.MustQuery("explain analyze select * from t where t.a < 10").Rows()
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require.Equal(t, "9", rows[0][2])
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require.Contains(t, rows[0][5], "cop_task: {num: 5")
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require.Contains(t, rows[0][5], "copr_cache_hit_ratio: 0.00")
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rows = tk.MustQuery("explain analyze select * from t").Rows()
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require.Equal(t, "12", rows[0][2])
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require.Contains(t, rows[0][5], "cop_task: {num: 6")
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hitRatioIdx := strings.Index(rows[0][5].(string), "copr_cache_hit_ratio:") + len("copr_cache_hit_ratio: ")
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require.GreaterOrEqual(t, hitRatioIdx, len("copr_cache_hit_ratio: "))
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hitRatio, err := strconv.ParseFloat(rows[0][5].(string)[hitRatioIdx:hitRatioIdx+4], 64)
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require.NoError(t, err)
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require.Greater(t, hitRatio, float64(0))
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// Test for cop cache disabled.
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cfg := config.NewConfig()
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cfg.TiKVClient.CoprCache.CapacityMB = 0
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config.StoreGlobalConfig(cfg)
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rows = tk.MustQuery("explain analyze select * from t where t.a < 10").Rows()
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require.Equal(t, "9", rows[0][2])
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require.Contains(t, rows[0][5], "copr_cache: disabled")
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}
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