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https://issues.apache.org/jira/browse/HADOOP-14369?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15993249#comment-15993249
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Inigo Goiri commented on HADOOP-14369:
--------------------------------------
The FindBugs are unrelated (I've been seeing this weird behavior in other JIRAs
too) and I don't think there is a unit test to add here.
> NetworkTopology calls expensive toString() when debugging
> ---------------------------------------------------------
>
> Key: HADOOP-14369
> URL: https://issues.apache.org/jira/browse/HADOOP-14369
> Project: Hadoop Common
> Issue Type: Bug
> Reporter: Inigo Goiri
> Assignee: Inigo Goiri
> Attachments: HADOOP-14369-000.patch, HADOOP-14369-001.patch
>
>
> When {{NetworkTopology}} calls {{add()}} or {{remove()}}, it calls
> {{toString()}} for {{LOG.debug()}} which is pretty expensive.
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