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https://issues.apache.org/jira/browse/TINKERPOP-2504?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17319354#comment-17319354
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Marc de Lignie commented on TINKERPOP-2504:
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Hi [~spmallette] , my assumption is that the routine travis failures coincide
with difficulties to handle low resources, at least that seemed the case for
the integration tests I investigated above. Indeed, my suggestion is to handle
the present issue with workarounds where possible and to generates new tickets
for the underlying issues. "Low resource test failures" might be too general.
The specific issue I mentioned relates to the gremlin server TestClientFactory
(based on the gremlin-driver Cluster client) blocking an entire cpu core per
destination that is not reachable.
> Intermittently failing server/driver integration tests
> ------------------------------------------------------
>
> Key: TINKERPOP-2504
> URL: https://issues.apache.org/jira/browse/TINKERPOP-2504
> Project: TinkerPop
> Issue Type: Improvement
> Components: driver, server
> Affects Versions: 3.4.9
> Reporter: Stephen Mallette
> Priority: Minor
>
> I've noticed this test failing intermittently on Travis and more consistently
> on the {{master}} branch with Docker. It fails with a
> {{ConcurrentModificationException}} (haven't been able to easily get the
> entire stack trace thanks to the docker issue and i've not caught it
> happening in the last few days on Travis). Adding this line of code seems to
> have made the test pass more consistently:
> https://github.com/apache/tinkerpop/commit/4b099b3c84a350aae953cdf517aa11c7017eb2ae
> which would indicate something perhaps fishy with how hosts are being marked
> dead and iterated. Would be nice to get rid of that little hack.
> Another common failure that is fairly consistent is with
> {{GremlinServerAuditLogIntegrateTest.shouldAuditLogWithKrb5Authenticator}}
> {code}
> [ERROR]
> shouldAuditLogWithKrb5Authenticator(org.apache.tinkerpop.gremlin.server.GremlinServerAuditLogIntegrateTest)
> Time elapsed: 3.16 s <<< ERROR!
> java.util.concurrent.ExecutionException:
> org.apache.tinkerpop.gremlin.driver.exception.ResponseException:
> Authenticator is not ready to handle requests
> at
> org.apache.tinkerpop.gremlin.server.GremlinServerAuditLogIntegrateTest.shouldAuditLogWithKrb5Authenticator(GremlinServerAuditLogIntegrateTest.java:222)
> Caused by: org.apache.tinkerpop.gremlin.driver.exception.ResponseException:
> Authenticator is not ready to handle requests
> {code}
> cc/ [~divijvaidya] [~HadoopMarc]
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