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https://issues.apache.org/jira/browse/CASSANDRA-18780?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17756586#comment-17756586
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Maxim Muzafarov commented on CASSANDRA-18780:
---------------------------------------------
[~benedict] Hey, it seems you are the author of this test. Can you please take
a look at this simple fix for the test? Do you have time to look at it? I was
trying to verify the CASSANDRA-16360 and stumbled upon this problem.
Changes are here:
https://github.com/apache/cassandra/pull/2613/files
> ConnectionBurnTest fails with NullPointerException
> --------------------------------------------------
>
> Key: CASSANDRA-18780
> URL: https://issues.apache.org/jira/browse/CASSANDRA-18780
> Project: Cassandra
> Issue Type: Bug
> Components: Test/burn
> Reporter: Maxim Muzafarov
> Assignee: Maxim Muzafarov
> Priority: Normal
> Fix For: 5.x
>
>
> The ConnectionBurnTest is used to check the throughput of outgoing and
> incoming connections and report the results of execution to the log. During
> the test run, I noticed a couple of errors that actually prevent us from
> getting any results.
> # The {{NullPointerException}} is thrown during the test execution
> {code:java}
> java.lang.NullPointerException: null
> at
> org.apache.cassandra.metrics.ClientMetrics.unpauseConnection(ClientMetrics.java:69)
> at
> org.apache.cassandra.net.AbstractMessageHandler.onReserveCapacityRegained(AbstractMessageHandler.java:314)
> at
> org.apache.cassandra.net.AbstractMessageHandler.onGlobalReserveCapacityRegained(AbstractMessageHandler.java:289)
> at
> org.apache.cassandra.net.AbstractMessageHandler$WaitQueue$Ticket.reactivateHandler(AbstractMessageHandler.java:792)
> at
> org.apache.cassandra.net.AbstractMessageHandler$WaitQueue$ReactivateHandlers.run(AbstractMessageHandler.java:740)
> {code}
> # The exception is swallowed and the test exits almost immediately, but the
> exception itself is not rethrown and the exit code is zero. The test is
> always green on CI, but a fatal exception has occurred;
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