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Posted to issues@ozone.apache.org by "Nanda kumar (Jira)" <ji...@apache.org> on 2020/06/05 16:21:00 UTC
[jira] [Updated] (HDDS-3732) Avoid UUID#toString call in
DatanodeDetails#getUuidString.
[ https://issues.apache.org/jira/browse/HDDS-3732?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Nanda kumar updated HDDS-3732:
------------------------------
Summary: Avoid UUID#toString call in DatanodeDetails#getUuidString. (was: Improve the performance of SCM with 7.23% by avoid UUID.toString)
> Avoid UUID#toString call in DatanodeDetails#getUuidString.
> ----------------------------------------------------------
>
> Key: HDDS-3732
> URL: https://issues.apache.org/jira/browse/HDDS-3732
> Project: Hadoop Distributed Data Store
> Issue Type: Sub-task
> Reporter: runzhiwang
> Assignee: runzhiwang
> Priority: Major
> Labels: pull-request-available
> Attachments: output.svg, screenshot-1.png, screenshot-2.png
>
>
> I start a ozone cluster with 1000 datanodes, and run two weeks with heavy workload, and perf scm.
> UUID.toString in DatanodeDetails cost 7.23% cpu because of so many datanodes.
> !screenshot-2.png!
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