J.B. Langston created CASSANDRA-5037:
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Summary: 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: 1.2.0 beta 3, 1.1.7
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
written. 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.
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