ZhangHB created HDFS-16859:
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Summary: acquirePermit : move LOG.debug into if condition
Key: HDFS-16859
URL: https://issues.apache.org/jira/browse/HDFS-16859
Project: Hadoop HDFS
Issue Type: Improvement
Components: rbf
Affects Versions: 3.3.4
Reporter: ZhangHB
The invoke frequency of method
AbstractRouterRpcFairnessPolicyController#acquirePermit is high. before
getting the permit of a nameservice, there is always a LOG.debug statement.
It is better to move the statement into if condition statement.
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