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https://issues.apache.org/jira/browse/IMPALA-13448?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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jiangwei resolved IMPALA-13448.
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Resolution: Fixed
> Impala should log the reason why it fails to open a log file
> ------------------------------------------------------------
>
> Key: IMPALA-13448
> URL: https://issues.apache.org/jira/browse/IMPALA-13448
> Project: IMPALA
> Issue Type: Bug
> Components: Backend
> Reporter: Quanlong Huang
> Assignee: jiangwei
> Priority: Critical
> Labels: newbie, ramp-up
>
> When impala fails to flush lineage events, audit events or profiles, only the
> log file name is logged: "Could not open log file: filename". We should also
> log the cause for better troubleshooting.
> Here is an example to use the POSIX-compatible thread-local error number
> variable:
> https://stackoverflow.com/a/5836222
> https://en.cppreference.com/w/cpp/header/cerrno
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