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*: fix oom action cancel bug (#10993) #11004

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merged 2 commits into from
Jul 1, 2019
Merged

*: fix oom action cancel bug (#10993) #11004

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ae8ada4
*: fix oom action cancel bug (#10993)
crazycs520 Jul 1, 2019
595d6d9
Merge branch 'release-3.0' into 10993-3.0
crazycs520 Jul 1, 2019
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19 changes: 19 additions & 0 deletions executor/executor_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -60,6 +60,7 @@ import (
"github.com/pingcap/tidb/table/tables"
"github.com/pingcap/tidb/tablecodec"
"github.com/pingcap/tidb/types"
"github.com/pingcap/tidb/util"
"github.com/pingcap/tidb/util/admin"
"github.com/pingcap/tidb/util/codec"
"github.com/pingcap/tidb/util/logutil"
Expand Down Expand Up @@ -3958,6 +3959,24 @@ func (s *testOOMSuite) TestDistSQLMemoryControl(c *C) {
tk.Se.GetSessionVars().MemQuotaDistSQL = -1
}

func (s *testSuite) TestOOMPanicAction(c *C) {
tk := testkit.NewTestKit(c, s.store)
tk.MustExec("use test")
tk.MustExec("drop table if exists t")
tk.MustExec("create table t (a int primary key, b double);")
tk.MustExec("insert into t values (1,1)")
sm := &mockSessionManager1{
PS: make([]*util.ProcessInfo, 0),
}
tk.Se.SetSessionManager(sm)
s.domain.ExpensiveQueryHandle().SetSessionManager(sm)
config.GetGlobalConfig().OOMAction = config.OOMActionCancel
tk.MustExec("set @@tidb_mem_quota_query=1;")
err := tk.QueryToErr("select sum(b) from t group by a;")
c.Assert(err, NotNil)
c.Assert(err.Error(), Matches, "Out Of Memory Quota!.*")
}

type oomCapturer struct {
zapcore.Core
tracker string
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2 changes: 1 addition & 1 deletion store/tikv/coprocessor.go
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Original file line number Diff line number Diff line change
Expand Up @@ -620,7 +620,7 @@ func (worker *copIteratorWorker) handleTask(bo *Backoffer, task *copTask, respCh
zap.Stack("stack trace"))
resp := &copResponse{err: errors.Errorf("%v", r)}
// if panic has happened, set checkOOM to false to avoid another panic.
worker.sendToRespCh(resp, task.respChan, false)
worker.sendToRespCh(resp, respCh, false)
}
}()
remainTasks := []*copTask{task}
Expand Down