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https://issues.apache.org/jira/browse/SOLR-17764?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17980492#comment-17980492
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Mark Robert Miller commented on SOLR-17764:
-------------------------------------------
You can see retry code looking for 503 right here in the cloud client:
{noformat}
if (wasCommError
|| (exc instanceof RouteException
&& (errorCode == 503))
{noformat}
If it's not retrying on 503 on some code path, it's just a bug.
> "graceful" jetty shutdown causes ChaosMonkeySafeLeaderWithPullReplicasTest
> failures
> -----------------------------------------------------------------------------------
>
> Key: SOLR-17764
> URL: https://issues.apache.org/jira/browse/SOLR-17764
> Project: Solr
> Issue Type: Bug
> Reporter: Chris M. Hostetter
> Priority: Major
> Attachments:
> E7F93005B9386058.OUTPUT-org.apache.solr.cloud.ChaosMonkeySafeLeaderWithPullReplicasTest.txt
>
>
> Reviewing recent jenkins test failure metrics, I noticed that (Nightly) test
> ChaosMonkeySafeLeaderWithPullReplicasTest started failing ~60% of the time
> right around the time that SOLR-17744 was committed.
> Things i have observed:
> * Seeds from failing runs seem to reliably reproduce the failure
> ** These failures do *NOT* reproduce if i revert to just before SOLR-17744
> * Ad-hoc testing I've done of seeds that do _not_ fail on first attempt seem
> to reliably succeed on all subsequent attempts
> ** Suggesting that the root cause is something deterministic in the
> {{{}random(){}}}-ness of the test, and not something dependent on timing or
> concurrency.
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