tomscut created HDFS-15975:
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Summary: 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
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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