Stamatis Zampetakis created HIVE-29401:
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Summary: Speed-up Derby operations by setting durability mode to
test
Key: HIVE-29401
URL: https://issues.apache.org/jira/browse/HIVE-29401
Project: Hive
Issue Type: Task
Components: Tests
Reporter: Stamatis Zampetakis
Assignee: Stamatis Zampetakis
Set derby.system.durability property when running tests to speed-up Derby
operations by avoiding expensive I/O system calls. This change can have
noticeable impact in CI environments and anywhere where file-system operations
are slow.
Local testing shows a performance gain of an order of magnitude when creating a
new Derby database (times dropped from ~200ms to 20ms). In CI, these times are
much bigger and reach the order of seconds.
The property should not be used in production but it is OK for testing where we
don't care about recovering from JVM crashes and errors.
See: https://db.apache.org/derby/docs/10.8/ref/rrefproperdurability.html
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