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https://issues.apache.org/jira/browse/CASSANDRA-6943?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Russ Hatch updated CASSANDRA-6943:
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Attachment: stress_jstack.log
node7_jstack.log
node6_jstack.log
node5_jstack.log
node4_jstack.log
adding jstack dumps for stress and the nodes.
node7 might be of particular interest. I had to use jstack -F to get anything
for that node.
> very contentious writes result in performance degradation
> ---------------------------------------------------------
>
> Key: CASSANDRA-6943
> URL: https://issues.apache.org/jira/browse/CASSANDRA-6943
> Project: Cassandra
> Issue Type: Bug
> Reporter: Russ Hatch
> Attachments: node4_jstack.log, node5_jstack.log, node6_jstack.log,
> node7_jstack.log, screenshot.png, screenshot2.png, stress_jstack.log
>
>
> Running performance scenarios I have seen this characteristic drop in
> performance happen several times. A similar effect was reproduced in another
> test cluster. Operations eventually come to a standstill.
> !screenshot.png!
> !screenshot2.png!
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