Alex created FLINK-13822:
----------------------------
Summary: TableAggregateITCase.testGroupByFlatAggregate test
failure: IllegalStateException: Concurrent access to KryoSerializer.
Key: FLINK-13822
URL: https://issues.apache.org/jira/browse/FLINK-13822
Project: Flink
Issue Type: Bug
Reporter: Alex
{code}
[ERROR]
testGroupByFlatAggregate[StateBackend=HEAP](org.apache.flink.table.planner.runtime.stream.table.TableAggregateITCase)
Time elapsed: 0.643 s <<< ERROR!
org.apache.flink.runtime.client.JobExecutionException: Job execution failed.
at
org.apache.flink.table.planner.runtime.stream.table.TableAggregateITCase.testGroupByFlatAggregate(TableAggregateITCase.scala:59)
Caused by: java.lang.IllegalStateException: Concurrent access to
KryoSerializer. Thread 1: GroupTableAggregate -> Calc(select=[b AS category, f0
AS v1, f1 AS v2]) -> SinkConversionToTuple2 (1/4) , Thread 2:
AsyncOperations-thread-1
{code}
CI log: https://api.travis-ci.com/v3/job/227362742/log.txt
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