Wei-Chiu Chuang created HDDS-4410:
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Summary: Cache DatanodeDetails#getUuidString()
Key: HDDS-4410
URL: https://issues.apache.org/jira/browse/HDDS-4410
Project: Hadoop Distributed Data Store
Issue Type: Improvement
Components: Ozone Manager
Affects Versions: 1.0.0
Reporter: Wei-Chiu Chuang
Attachments: Screen Shot 2020-10-29 at 5.42.57 PM.png
DatanodeDetails#getUuidString() is used a lot in OM. In our benchmark about 2%
of time is spent getting this string. We should consider caching the string to
avoid constructing the UUID string repeatedly.
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