Joe McDonnell created IMPALA-14726:
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Summary: Impala minicluster should customize the JVM heap size
(lower)
Key: IMPALA-14726
URL: https://issues.apache.org/jira/browse/IMPALA-14726
Project: IMPALA
Issue Type: Task
Components: Infrastructure
Affects Versions: Impala 5.0.0
Reporter: Joe McDonnell
The Impala dev environment minicluster doesn't set an explicit value for Xmx.
By default the JVM will use 25% of system memory. That is significantly more
than the Impala daemons should have. Impala sets the memory limit of the
minicluster to a maximum of 12GB for each daemon. On a system with 64GB of
memory, the JVM would try to use 16GB for the Xmx. It's unclear how low we can
go, but the end to end tests run fine with -Xmx2g.
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