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From "Jeremy Hanna (JIRA)" <j...@apache.org>
Subject [jira] Updated: (CASSANDRA-2169) user created with debian packaging is unable to increase memlock
Date Tue, 15 Feb 2011 19:40:57 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-2169?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jeremy Hanna updated CASSANDRA-2169:
------------------------------------

    Description: 
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'.

  was:
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'.


> 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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