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Posted to issues@spark.apache.org by "Wenchen Fan (Jira)" <ji...@apache.org> on 2025/12/10 14:36:00 UTC

[jira] [Assigned] (SPARK-54663) Computes order independent RowBasedChecksum in ShuffleWriters

     [ https://issues.apache.org/jira/browse/SPARK-54663?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Wenchen Fan reassigned SPARK-54663:
-----------------------------------

    Assignee: Tengfei Huang

> Computes order independent RowBasedChecksum in ShuffleWriters
> -------------------------------------------------------------
>
>                 Key: SPARK-54663
>                 URL: https://issues.apache.org/jira/browse/SPARK-54663
>             Project: Spark
>          Issue Type: Sub-task
>          Components: Spark Core
>    Affects Versions: 4.0.1
>            Reporter: Tengfei Huang
>            Assignee: Tengfei Huang
>            Priority: Major
>             Fix For: 4.1.0
>
>
> To help detect the shuffle output changes due to indeterminate stage retry, we need to introduce an order independent checksum for the shuffle output.
> Once the checksum changes, we'll know that this is from a indeterminate stage retry, will need to recompute all the succeeding stages for data correctness.



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