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Posted to issues-all@impala.apache.org by "zhi tang (Jira)" <ji...@apache.org> on 2021/03/22 05:17:00 UTC
[jira] [Updated] (IMPALA-10599) The coordinator should avoid
distributing query fragments to busy nodes.
[ https://issues.apache.org/jira/browse/IMPALA-10599?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
zhi tang updated IMPALA-10599:
------------------------------
Summary: The coordinator should avoid distributing query fragments to busy nodes. (was: The coordinator should avoid distributing query fragments to exception nodes.)
> The coordinator should avoid distributing query fragments to busy nodes.
> ------------------------------------------------------------------------
>
> Key: IMPALA-10599
> URL: https://issues.apache.org/jira/browse/IMPALA-10599
> Project: IMPALA
> Issue Type: Improvement
> Components: Distributed Exec
> Affects Versions: Impala 3.2.0, Impala 3.4.0
> Environment: LSB Version: core-4.1-amd64
> Distributor ID: CentOS
> Description: CentOS release 7.4.1708.7
> Release: 7.4.1708.7
> impala version: 3.2.0
> Reporter: zhi tang
> Priority: Major
> Labels: features
>
> When I join[shuffle] with unbalanced fields, there will be data-skewed nodes during execution.This will result in the skewed node being under high load for a long time, because the query is likely to be endless.If other queries are committed or running during this time, they may be rejected or an exception thrown.
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