Ivan Andika created HDDS-12822:
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Summary: Short-circuit during the OmKeyInfo equality check
Key: HDDS-12822
URL: https://issues.apache.org/jira/browse/HDDS-12822
Project: Apache Ozone
Issue Type: Improvement
Reporter: Ivan Andika
Assignee: Ivan Andika
Currently OmKeyInfo#isKeyInfoSame compares the OmKeyInfo objectID last,
although objectID is one of the most likely changed attribute. Ideally, the
equality check should compare the attributes that are most likely changed first
so that the results can be short-circuited faster. We can also prioritize
primitives (int, long) attributes first, then string, then list (dynamic list
like ACLs), and finally maps (immutable map like metadata should comes before
mutable map like tags).
We can try to change the ordering of OmKeyInfo#isKeyInfoSame and run some
benchmarks to see the performance improvement.
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