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https://issues.apache.org/jira/browse/TS-4072?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15240098#comment-15240098
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ASF GitHub Bot commented on TS-4072:
------------------------------------
Github user SolidWallOfCode commented on the pull request:
https://github.com/apache/trafficserver/pull/568#issuecomment-209664725
Yes. We looked at various approaches and decided on this one because there
was already a lock around access to the file descriptor. Locking the update to
that value should prevent the race condition and potential use of a deleted
file handle.
> Diagnostic log rolling races
> ----------------------------
>
> Key: TS-4072
> URL: https://issues.apache.org/jira/browse/TS-4072
> Project: Traffic Server
> Issue Type: Bug
> Components: Logging
> Reporter: James Peach
> Assignee: Daniel Xu
> Fix For: 6.2.0
>
>
> When diagnostic logs are rolled, {{Diags::diags_log}} is deleted and replaced
> with a new log object. Since the global {{diags}} points to a a single
> {{Diags}} object there is nothing to prevent a different thread logging
> through this object at the time it is deleted.
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