   Exception thrown from JobMaster.startScheduling() may be ignored.
</li>
<li>[<a href='https://issues.apache.org/jira/browse/FLINK-20396'>FLINK-20396</a>] -         Add &quot;OperatorCoordinator.resetSubtask()&quot; to fix order problems of &quot;subtaskFailed()&quot;
</li>
<li>[<a href='https://issues.apache.org/jira/browse/FLINK-20404'>FLINK-20404</a>] -         ZooKeeper quorum fails to start due to missing log4j library
</li>
<li>[<a href='https://issues.apache.org/jira/browse/FLINK-20413'>FLINK-20413