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Posted to dev@lucene.apache.org by "Hoss Man (JIRA)" <ji...@apache.org> on 2019/07/02 18:35:00 UTC

[jira] [Created] (SOLR-13599) ReplicationFactorTest high failure rate on Windows jenkins VMs after 2019-06-22 OS/java upgrades

Hoss Man created SOLR-13599:
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             Summary: ReplicationFactorTest high failure rate on Windows jenkins VMs after 2019-06-22 OS/java upgrades
                 Key: SOLR-13599
                 URL: https://issues.apache.org/jira/browse/SOLR-13599
             Project: Solr
          Issue Type: Bug
      Security Level: Public (Default Security Level. Issues are Public)
            Reporter: Hoss Man



We've started seeing some weirdly consistent (but not reliably reproducible) failures from ReplicationFactorTest when running on Uwe's Windows jenkins machines.

The failures all seem to have started on June 22 -- when Uwe upgraded his Windows VMs to upgrade the Java version, but happen across all versions of java tested, and on both the master and branch_8x.

While this test failed a total of 5 times, in different ways, on various jenkins boxes between 2019-01-01 and 2019-06-21, it seems to have failed on all but 1 or 2 of Uwe's "Windows" jenkins builds since that 2019-06-22, and when it fails the {{reproduceJenkinsFailures.py}} logic used in Uwe's jenkins builds frequently fails anywhere from 1-4 additional times.

All of these failures occur in the exact same place, with the exact same assertion: that the expected replicationFactor of 2 was not achieved, and an rf=1 (ie: only the master) was returned, when sending a _batch_ of documents to a collection with 1 shard, 3 replicas; while 1 of the replicas was partitioned off due to a closed proxy.

In the handful of logs I've examined closely, the 2nd "live" replica does in fact log that it recieved & processed the update, but with a QTime of over 30 seconds, and it then it immediately logs an {{org.eclipse.jetty.io.EofException: Reset cancel_stream_error}} Exception -- meanwhile, the leader has one ({{updateExecutor}} thread logging copious amount of {{java.net.ConnectException: Connection refused: no further information}} regarding the replica that was partitioned off, before a second {{updateExecutor}} thread ultimately logs {{java.util.concurrent.ExecutionException: java.util.concurrent.TimeoutException: idle_timeout}} regarding the "live" replica.



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