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https://issues.apache.org/jira/browse/HDFS-15975?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Takanobu Asanuma resolved HDFS-15975.
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Fix Version/s: 3.4.0
Resolution: Fixed
> Use LongAdder instead of AtomicLong
> -----------------------------------
>
> Key: HDFS-15975
> URL: https://issues.apache.org/jira/browse/HDFS-15975
> Project: Hadoop HDFS
> Issue Type: Wish
> Reporter: tomscut
> Assignee: tomscut
> Priority: Minor
> Labels: pull-request-available
> Fix For: 3.4.0
>
> Time Spent: 3h 20m
> Remaining Estimate: 0h
>
> When counting some indicators, we can use LongAdder instead of AtomicLong to
> improve performance. The long value is not an atomic snapshot in LongAdder,
> but I think we can tolerate that.
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