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Daniel Becker updated IMPALA-8804: ---------------------------------- Target Version: Impala 4.3.0 (was: Impala 4.2.0) > Memory based admission control is always disabled if pool max mem is not set > ---------------------------------------------------------------------------- > > Key: IMPALA-8804 > URL: https://issues.apache.org/jira/browse/IMPALA-8804 > Project: IMPALA > Issue Type: Improvement > Components: Backend > Affects Versions: Impala 3.1.0, Impala 3.2.0, Impala 3.3.0 > Reporter: Tim Armstrong > Assignee: Andrew Sherman > Priority: Major > Labels: admission-control > Attachments: minicluster-fair-scheduler.xml, > minicluster-llama-site.xml > > > Memory-based admission control doesn't kick in with the provided config files > where no max memory is configured for the pool. This is the documented > behaviour and not a bug - see > https://impala.apache.org/docs/build/html/topics/impala_admission.html. > However, it is inconvenient since you need to specify some max memory value > even if you don't want to limit the pool's share of the clusters resources > (or the cluster is variable in size). > This is unfriendly. It is also confusing since there is no explicit way to > enable memory-based admission control. > You can workaround by setting the pool max memory to a very high value. > To reproduce, start a minicluster with the provided configs. If you submit > multiple memory-intensive queries in parallel, they will never be queued. > {noformat} > start-impala-cluster.py > --impalad_args="-fair_scheduler_allocation_path=minicluster-fair-scheduler.xml > -llama_site_path=minicluster-llama-site.xml" > --impalad_args=-vmodule=admission-controller > {noformat} -- This message was sent by Atlassian Jira (v8.20.10#820010) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-all-unsubscr...@impala.apache.org For additional commands, e-mail: issues-all-h...@impala.apache.org