ZanderXu created HDFS-17487:
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Summary: [FGL] Make rollEdits thread safe
Key: HDFS-17487
URL: https://issues.apache.org/jira/browse/HDFS-17487
Project: Hadoop HDFS
Issue Type: Sub-task
Reporter: ZanderXu
Assignee: ZanderXu
rollEdits is a very common used RPCs. It is not thread-safe, so it still needs
to hold the global write lock. So it has a big impact on the performance.
We need to make it thread-safe to let it hold the global read lock to improve
the performance.
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