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https://issues.apache.org/jira/browse/HADOOP-17295?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Steve Loughran reassigned HADOOP-17295:
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Assignee: Chen Zhi
> 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
> Assignee: Chen Zhi
> Priority: Minor
> Labels: pull-request-available
> Time Spent: 20m
> Remaining Estimate: 0h
>
> 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 the performance and maintainability of these logging calls can be
> improved to some extend. So 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 as
> well as pre-processing statements. And I want to perform a systematic
> evaluation for the overhead of debugging logging calls in production.
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