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Posted to issues@ozone.apache.org by "Wei-Chiu Chuang (Jira)" <ji...@apache.org> on 2020/10/30 00:46:00 UTC

[jira] [Created] (HDDS-4410) Cache DatanodeDetails#getUuidString()

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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