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https://issues.apache.org/jira/browse/CASSANDRA-2169?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12994961#comment-12994961
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Jeremy Hanna commented on CASSANDRA-2169:
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Upgraded to 0.7.1 and still appears to have the same issue.
> user created with debian packaging is unable to increase memlock
> ----------------------------------------------------------------
>
> Key: CASSANDRA-2169
> URL: https://issues.apache.org/jira/browse/CASSANDRA-2169
> Project: Cassandra
> Issue Type: Bug
> Components: Packaging
> Reporter: Jeremy Hanna
> Priority: Minor
>
> To reproduce:
> - Install a fresh copy of ubuntu 10.04.
> - Install sun's java6 jdk.
> - Install libjna-java 3.2.7 into /usr/share/java.
> - Install cassandra 0.7.0 from the apache debian packages.
> - Start cassandra using /etc/init.d/cassandra
> In the output.log there will be the following error:
> {quote}
> Unable to lock JVM memory (ENOMEM). This can result in part of the JVM being
> swapped out, especially with mmapped I/O enabled. Increase RLIMIT_MEMLOCK or
> run Cassandra as root.
> {quote}
> This shouldn't be as the debian package creates
> /etc/security/limits.d/cassandra.conf and sets the cassandra user's memlock
> limit to 'unlimited'.
> I tried a variety of things including making the memlock unlimited for all
> users in /etc/security/limits.conf. I was able to run cassandra using root
> with jna symbolically linked into /usr/share/cassandra from /usr/share/java,
> but I could never get the init.d script to work and get beyond that error.
> Based on all the trial and error, I think it might have to do with the
> cassandra user itself, but my debian/ubuntu fu isn't as good as others'.
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