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// 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)
}