Chen Zhi created HADOOP-17295:
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Summary: Move dedicated pre-logging statements into existing
logging guards
Key: HADOOP-17295
URL: https://issues.apache.org/jira/browse/HADOOP-17295
Project: Hadoop Common
Issue Type: Improvement
Reporter: Chen Zhi
I find some cases where some pre-processing statements dedicated to logging
calls are not guarded by existing logging guards. Most of them are easy to fix.
And I create a PR to fix them.
These issues are detected by a static analysis tool wrote by myself. This tool
can extract all the dedicated statements for each debug-logging calls (i.e.,
the results of these statements are only used by debug-logging calls). Because
I realize that debug logs will incur overhead in production, such as string
concatenation and method calls in the parameters of logging calls. And I want
to perform a systematic evaluation for the overhead of debugging logging calls
in production.
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