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https://issues.apache.org/jira/browse/HDDS-3743?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated HDDS-3743:
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Labels: pull-request-available (was: )
> Avoid NetUtils.normalize when get DatanodeDetails from proto
> ------------------------------------------------------------
>
> Key: HDDS-3743
> URL: https://issues.apache.org/jira/browse/HDDS-3743
> Project: Hadoop Distributed Data Store
> Issue Type: Sub-task
> Reporter: runzhiwang
> Assignee: runzhiwang
> Priority: Major
> Labels: pull-request-available
> Attachments: om.svg, screenshot-1.png, screenshot-2.png,
> screenshot-3.png, screenshot-4.png
>
>
> I start a ozone cluster with 1000 datanodes, and run two weeks with heavy
> workload, and perf om.
> You can find NetUtils.normalize cost 0.17% cpu, because it needs to do
> Matcher.replaceAll. It happen in the critical path, i.e. lookUpKey when read.
> we need not to do this when getFromProtoBuf, So we can avoid normalize by
> check the last character.
> !screenshot-3.png!
> !screenshot-4.png!
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