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https://issues.apache.org/jira/browse/HTRACE-297?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Colin Patrick McCabe resolved HTRACE-297.
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Resolution: Fixed
Fix Version/s: 4.1
> htraced: avoid serializing spans to json unless TRACE logging is enabled
> ------------------------------------------------------------------------
>
> Key: HTRACE-297
> URL: https://issues.apache.org/jira/browse/HTRACE-297
> Project: HTrace
> Issue Type: Bug
> Components: htraced
> Affects Versions: 4.0
> Reporter: Colin Patrick McCabe
> Assignee: Colin Patrick McCabe
> Fix For: 4.1
>
> Attachments: HTRACE-297.001.patch
>
>
> We have been unconditionally serializing spans to JSON, but only logging them
> when TRACE logging is enabled. Profiling has revealed that this is a CPU
> bottleneck. Let's put "if" statement guards around the log messages to avoid
> doing this serialization unless it is really useful.
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