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Posted to common-dev@hadoop.apache.org by "Walter Su (JIRA)" <ji...@apache.org> on 2015/03/24 04:43:54 UTC

[jira] [Created] (HADOOP-11741) Add LOG.isDebugEnabled() guard for some LOG.debug(..)

Walter Su created HADOOP-11741:
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             Summary: Add LOG.isDebugEnabled() guard for some LOG.debug(..)
                 Key: HADOOP-11741
                 URL: https://issues.apache.org/jira/browse/HADOOP-11741
             Project: Hadoop Common
          Issue Type: Improvement
            Reporter: Walter Su
            Assignee: Walter Su


{{isDebugEnabled()}} is optional. But when there are :
1. lots of concatenating Strings
2. complicated function calls
in the arguments, {{LOG.debug(..)}} should be guarded with {{LOG.isDebugEnabled()}} to avoid unnecessary arguments evaluation and impove performance.



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