Tao Li created HDFS-17626:
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Summary: Reduce lock contention at datanode startup
Key: HDFS-17626
URL: https://issues.apache.org/jira/browse/HDFS-17626
Project: Hadoop HDFS
Issue Type: Improvement
Reporter: Tao Li
Assignee: Tao Li
Attachments: image-2024-09-18-20-45-56-999.png
During the datanode startup process, there is a debug log, because there is no
LOG.isDebugEnabled() guard, so even if debug is not enabled, the read lock will
be obtained. The guard should be added here to reduce lock contention.
!image-2024-09-18-20-45-56-999.png|width=333,height=263!
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