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https://issues.apache.org/jira/browse/CASSANDRA-5037?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13607185#comment-13607185
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Sven Delmas commented on CASSANDRA-5037:
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I am happy to adjust the redhat init file we use in dsc accordingly, but who
would change ./debian/init then (that's C* packaging correct)?
> Set CASSANDRA_HEAPDUMP_DIR in cassandra-env.sh by default
> ---------------------------------------------------------
>
> Key: CASSANDRA-5037
> URL: https://issues.apache.org/jira/browse/CASSANDRA-5037
> Project: Cassandra
> Issue Type: Bug
> Components: Config
> Affects Versions: 1.1.7, 1.2.0 beta 3
> Reporter: J.B. Langston
> Priority: Minor
>
> Cassandra is configured via -XX:+HeapDumpOnOutOfMemoryError to trigger a heap
> dump at the occurrence of an OutOfMemoryError, but unless you have set your
> CASSANDRA_HEAPDUMP_DIR in cassandra-env.sh, the file will be written in the
> Cassandra process's working directory, which when Cassandra is run as a
> service is typically the root directory. Nine times out of ten, the Cassandra
> process does not have permission to write here so no heap dump is created.
> Even if Cassandra does have permission, the root filesystem is usually small
> and the heap dump could easily fill it up with a large Xmx configured. This
> makes post-mortem analysis difficult. We should set it by default to e.g.
> /var/log/cassandra.
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