// Copyright 2020 PingCAP, Inc. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // See the License for the specific language governing permissions and // limitations under the License. package tikv_test import ( "context" "fmt" . "github.com/pingcap/check" "github.com/pingcap/errors" "github.com/pingcap/failpoint" "github.com/pingcap/kvproto/pkg/metapb" "github.com/pingcap/parser/model" "github.com/pingcap/tidb/domain" "github.com/pingcap/tidb/kv" "github.com/pingcap/tidb/session" "github.com/pingcap/tidb/sessionctx" "github.com/pingcap/tidb/store/mockstore" "github.com/pingcap/tidb/store/mockstore/mocktikv" "github.com/pingcap/tidb/table" "github.com/pingcap/tidb/util/testkit" ) type testBatchCopSuite struct { } var _ = Suite(&testBatchCopSuite{}) func newStoreWithBootstrap(tiflashNum int) (kv.Storage, *domain.Domain, error) { var mockCluster = mocktikv.NewCluster() _, _, region1 := mocktikv.BootstrapWithSingleStore(mockCluster) tiflashIdx := 0 for tiflashIdx < tiflashNum { store2 := mockCluster.AllocID() peer2 := mockCluster.AllocID() addr2 := fmt.Sprintf("tiflash%d", tiflashIdx) mockCluster.AddStore(store2, addr2) mockCluster.UpdateStoreAddr(store2, addr2, &metapb.StoreLabel{Key: "engine", Value: "tiflash"}) mockCluster.AddPeer(region1, store2, peer2) tiflashIdx++ } store, err := mockstore.NewMockTikvStore(mockstore.WithCluster(mockCluster)) if err != nil { return nil, nil, errors.Trace(err) } session.SetSchemaLease(0) session.DisableStats4Test() dom, err := session.BootstrapSession(store) if err != nil { return nil, nil, err } dom.SetStatsUpdating(true) return store, dom, errors.Trace(err) } func testGetTableByName(c *C, ctx sessionctx.Context, db, table string) table.Table { dom := domain.GetDomain(ctx) // Make sure the table schema is the new schema. err := dom.Reload() c.Assert(err, IsNil) tbl, err := dom.InfoSchema().TableByName(model.NewCIStr(db), model.NewCIStr(table)) c.Assert(err, IsNil) return tbl } func (s *testBatchCopSuite) TestStoreErr(c *C) { store, dom, err := newStoreWithBootstrap(1) c.Assert(err, IsNil) defer func() { dom.Close() store.Close() }() tk := testkit.NewTestKit(c, store) tk.MustExec("use test") tk.MustExec("create table t(a int not null, b int not null)") tk.MustExec("alter table t set tiflash replica 1") tb := testGetTableByName(c, tk.Se, "test", "t") err = domain.GetDomain(tk.Se).DDL().UpdateTableReplicaInfo(tk.Se, tb.Meta().ID, true) c.Assert(err, IsNil) tk.MustExec("insert into t values(1,0)") tk.MustExec("set @@session.tidb_isolation_read_engines=\"tiflash\"") c.Assert(failpoint.Enable("github.com/pingcap/tidb/store/mockstore/mocktikv/BatchCopCancelled", "1*return(true)"), IsNil) err = tk.QueryToErr("select count(*) from t") c.Assert(errors.Cause(err), Equals, context.Canceled) c.Assert(failpoint.Enable("github.com/pingcap/tidb/store/mockstore/mocktikv/BatchCopRpcErrtiflash0", "1*return(\"tiflash0\")"), IsNil) tk.MustQuery("select count(*) from t").Check(testkit.Rows("1")) c.Assert(failpoint.Enable("github.com/pingcap/tidb/store/mockstore/mocktikv/BatchCopRpcErrtiflash0", "return(\"tiflash0\")"), IsNil) err = tk.QueryToErr("select count(*) from t") c.Assert(err, NotNil) } func (s *testBatchCopSuite) TestStoreSwitchPeer(c *C) { store, dom, err := newStoreWithBootstrap(2) c.Assert(err, IsNil) defer func() { dom.Close() store.Close() }() tk := testkit.NewTestKit(c, store) tk.MustExec("use test") tk.MustExec("create table t(a int not null, b int not null)") tk.MustExec("alter table t set tiflash replica 1") tb := testGetTableByName(c, tk.Se, "test", "t") err = domain.GetDomain(tk.Se).DDL().UpdateTableReplicaInfo(tk.Se, tb.Meta().ID, true) c.Assert(err, IsNil) tk.MustExec("insert into t values(1,0)") tk.MustExec("set @@session.tidb_isolation_read_engines=\"tiflash\"") c.Assert(failpoint.Enable("github.com/pingcap/tidb/store/mockstore/mocktikv/BatchCopRpcErrtiflash0", "return(\"tiflash0\")"), IsNil) tk.MustQuery("select count(*) from t").Check(testkit.Rows("1")) c.Assert(failpoint.Enable("github.com/pingcap/tidb/store/mockstore/mocktikv/BatchCopRpcErrtiflash1", "return(\"tiflash1\")"), IsNil) err = tk.QueryToErr("select count(*) from t") c.Assert(err, NotNil) }