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https://issues.apache.org/jira/browse/HADOOP-18767?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18030776#comment-18030776
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ASF GitHub Bot commented on HADOOP-18767:
-----------------------------------------
github-actions[bot] closed pull request #5916: HADOOP-18767. Fix warn logger
when creating WeakReferenceMap
URL: https://github.com/apache/hadoop/pull/5916
> WeakReferenceMap creation warning log doesn't format correctly
> --------------------------------------------------------------
>
> Key: HADOOP-18767
> URL: https://issues.apache.org/jira/browse/HADOOP-18767
> Project: Hadoop Common
> Issue Type: Bug
> Components: fs
> Affects Versions: 3.3.5
> Reporter: Steve Loughran
> Priority: Trivial
> Labels: pull-request-available
>
> {{WeakReferenceMap.create(K key)}} logs once at warning level if a reference
> to a key was lost during creation.
> {code}
> referenceLostDuringCreation.warn("reference to %s lost during creation", key);
> {code}
> but it uses %s as the insertion point for the key, when it should be {}.
> this means the log, if it ever surfaces, won't include the key.
> i don't think this is a very important issue, but it exists.
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