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https://issues.apache.org/jira/browse/IMPALA-5662?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Bikramjeet Vig resolved IMPALA-5662.
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Resolution: Fixed
Fix Version/s: Impala 3.1.0
> Log all information relevant to admission control decision making
> -----------------------------------------------------------------
>
> Key: IMPALA-5662
> URL: https://issues.apache.org/jira/browse/IMPALA-5662
> Project: IMPALA
> Issue Type: Improvement
> Components: Backend
> Reporter: Balazs Jeszenszky
> Assignee: Bikramjeet Vig
> Priority: Major
> Labels: admission-control, observability, resource-management,
> supportability
> Fix For: Impala 3.1.0
>
>
> Currently, when making a decision whether to admit a query or not, the log
> has the following format:
> {code:java}
> I0705 14:43:04.031771 7388 admission-controller.cc:442] Stats:
> agg_num_running=1, agg_num_queued=0, agg_mem_reserved=486.74 MB,
> local_host(local_mem_admitted=0, num_admitted_running=0, num_queued=0,
> backend_mem_reserved=56.07 MB)
> {code}
> Since it's also possible to queue queries due to one node not being able to
> reserve the required memory, we should also log the max(backend_mem_reserved)
> across all nodes.
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