Ted Yu created FLINK-4701:
-----------------------------
Summary: Unprotected access to cancelables in StreamTask
Key: FLINK-4701
URL: https://issues.apache.org/jira/browse/FLINK-4701
Project: Flink
Issue Type: Bug
Reporter: Ted Yu
Priority: Minor
In performCheckpoint():
{code}
AsyncCheckpointRunnable asyncCheckpointRunnable
= new AsyncCheckpointRunnable(
"checkpoint-" + checkpointId +
"-" + timestamp,
this,
cancelables,
chainedStateHandles,
keyGroupsStateHandleFuture,
checkpointId,
bytesBufferedAlignment,
alignmentDurationNanos,
syncDurationMillis,
endOfSyncPart);
synchronized (cancelables) {
cancelables.add(asyncCheckpointRunnable);
}
{code}
Construction of AsyncCheckpointRunnable should be put under the synchronized
block of cancelables.
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