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https://issues.apache.org/jira/browse/CASSANDRA-10730?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15034505#comment-15034505
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Jim Witschey commented on CASSANDRA-10730:
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It doesn't look like the default heap size is ever set below 1024:
https://github.com/apache/cassandra/blob/trunk/conf/cassandra-env.sh#L57
I don't see anything in the cassandra-3.0 Jenkins job configuration, or in
Jenkins' automaton.conf, that would set it lower.
> periodic timeout errors in dtest
> --------------------------------
>
> Key: CASSANDRA-10730
> URL: https://issues.apache.org/jira/browse/CASSANDRA-10730
> Project: Cassandra
> Issue Type: Bug
> Reporter: Jim Witschey
> Assignee: Jim Witschey
>
> Dtests often fail with connection timeout errors. For example:
> http://cassci.datastax.com/job/cassandra-3.1_dtest/lastCompletedBuild/testReport/upgrade_tests.cql_tests/TestCQLNodes3RF3/deletion_test/
> {code}
> ('Unable to connect to any servers', {'127.0.0.1':
> OperationTimedOut('errors=Timed out creating connection (10 seconds),
> last_host=None',)})
> {code}
> We've merged a PR to increase timeouts:
> https://github.com/riptano/cassandra-dtest/pull/663
> It doesn't look like this has improved things:
> http://cassci.datastax.com/view/cassandra-3.0/job/cassandra-3.0_dtest/363/testReport/
> Next steps here are
> * to scrape Jenkins history to see if and how the number of tests failing
> this way has increased (it feels like it has). From there we can bisect over
> the dtests, ccm, or C*, depending on what looks like the source of the
> problem.
> * to better instrument the dtest/ccm/C* startup process to see why the nodes
> start but don't successfully make the CQL port available.
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