user created with debian packaging is unable to increase memlock
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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 by 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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