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https://issues.apache.org/jira/browse/CASSANDRA-9607?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14592186#comment-14592186
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Benedict commented on CASSANDRA-9607:
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bq. I had uploaded heap dump when OOM occurred:
Ah, you hadn't mentioned OOM. In that case it is _highly likely_ you are
experiencing CASSANDRA-9549, which will be fixed in 2.1.7 released shortly, or
you can run the patch version posted to that ticket as [~rstrickland] has.
> Get high load after upgrading from 2.1.3 to cassandra 2.1.6
> -----------------------------------------------------------
>
> Key: CASSANDRA-9607
> URL: https://issues.apache.org/jira/browse/CASSANDRA-9607
> Project: Cassandra
> Issue Type: Bug
> Environment: OS:
> CentOS 6 * 4
> Ubuntu 14.04 * 2
> JDK: Oracle JDK 7, Oracle JDK 8
> VM: Azure VM Standard A3 * 6
> RAM: 7 GB
> Cores: 4
> Reporter: Study Hsueh
> Priority: Critical
> Attachments: cassandra.yaml, load.png, log.zip
>
>
> After upgrading cassandra version from 2.1.3 to 2.1.6, the average load of my
> cassandra cluster grows from 0.x~1.x to 3.x~6.x.
> What kind of additional information should I provide for this problem?
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