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https://issues.apache.org/jira/browse/CASSANDRA-11711?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15305228#comment-15305228
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Alex Petrov commented on CASSANDRA-11711:
-----------------------------------------
I agree that it looks rather like the test and code underneath is correct and
the error (in my experience occurs more when there're many concurrent jobs
running, which results into timeouts). I also couldn't reproduce it locally no
matter how many times I ran it, increasing number of iterations and so didn't
break it, too.
I've triggered a job which ran a build several times and all runs of this test
were clean.
+1
> testJsonThreadSafety is failing / flapping
> ------------------------------------------
>
> Key: CASSANDRA-11711
> URL: https://issues.apache.org/jira/browse/CASSANDRA-11711
> Project: Cassandra
> Issue Type: Bug
> Components: Testing
> Reporter: Alex Petrov
> Assignee: Tyler Hobbs
> Priority: Minor
> Fix For: 2.2.x, 3.0.x, 3.x
>
>
> {{JsonTest::testJsonThreadSafety}} is failing quite often recently:
> https://cassci.datastax.com/view/Dev/view/ifesdjeen/job/ifesdjeen-11540-2.2-testall/lastCompletedBuild/testReport/org.apache.cassandra.cql3.validation.entities/JsonTest/testJsonThreadSafety/
> Output looks like
> {code}
> Stacktrace
> java.util.concurrent.TimeoutException
> at java.util.concurrent.FutureTask.get(FutureTask.java:201)
> at
> org.apache.cassandra.cql3.validation.entities.JsonTest.testJsonThreadSafety(JsonTest.java:1028)
> WARN 12:19:23 Small commitlog volume detected at
> build/test/cassandra/commitlog:30; setting commitlog_total_space_in_mb to
> 1982. You can override this in cassandra.yaml
> WARN 12:19:23 Small commitlog volume detected at
> build/test/cassandra/commitlog:30; setting commitlog_total_space_in_mb to
> 1982. You can override this in cassandra.yaml
> WARN 12:19:23 Only 5581 MB free across all data volumes. Consider adding
> more capacity to your cluster or removing obsolete snapshots
> WARN 12:19:23 Only 5581 MB free across all data volumes. Consider adding
> more capacity to your cluster or removing obsolete snapshots
> WARN 12:19:26 Aggregation query used without partition key
> WARN 12:19:26 Aggregation query used without partition key
> WARN 12:19:26 Aggregation query used without partition key
> WARN 12:19:26 Aggregation query used without partition key
> Seed 889742091470
> {code}
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