Schema Registry nightly end-to-end test&quot; unstable with &quot;Kafka cluster did not start after 120 seconds&quot;
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<li>[<a href='https://issues.apache.org/jira/browse/FLINK-18815'>FLINK-18815</a>] -         AbstractCloseableRegistryTest.testClose unstable
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<li>[<a href='https://issues.apache.org/jira/browse/FLINK-18818'>FLINK-18818</a>] -         HadoopRenameCommitterHDFSTest.testCommitOneFile[Override: false] failed with &quot;java.io.IOException: The stream is closed&quot;
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<li>[<a href