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Posted to issues@spark.apache.org by "Dongjoon Hyun (Jira)" <ji...@apache.org> on 2022/04/26 23:14:00 UTC

[jira] [Reopened] (SPARK-38354) Add hash probes metrics for shuffled hash join

     [ https://issues.apache.org/jira/browse/SPARK-38354?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dongjoon Hyun reopened SPARK-38354:
-----------------------------------
      Assignee:     (was: Cheng Su)

This is reverted due to the regression via https://github.com/apache/spark/pull/36338

> Add hash probes metrics for shuffled hash join
> ----------------------------------------------
>
>                 Key: SPARK-38354
>                 URL: https://issues.apache.org/jira/browse/SPARK-38354
>             Project: Spark
>          Issue Type: Sub-task
>          Components: SQL
>    Affects Versions: 3.3.0
>            Reporter: Cheng Su
>            Priority: Trivial
>             Fix For: 3.3.0
>
>
> For `HashAggregate` there's a SQL metrics to track number of hash probes per looked-up key. It would be better to add a similar metrics for shuffled hash join as well, to get some idea of hash probing performance.



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