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Posted to commits@hudi.apache.org by "Sagar Sumit (Jira)" <ji...@apache.org> on 2022/05/09 07:04:00 UTC

[jira] [Closed] (HUDI-2599) [Performance] Lower parallelism with snapshot query on COW tables in Presto

     [ https://issues.apache.org/jira/browse/HUDI-2599?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sagar Sumit closed HUDI-2599.
-----------------------------
    Resolution: Fixed

> [Performance] Lower parallelism with snapshot query on COW tables in Presto
> ---------------------------------------------------------------------------
>
>                 Key: HUDI-2599
>                 URL: https://issues.apache.org/jira/browse/HUDI-2599
>             Project: Apache Hudi
>          Issue Type: Task
>            Reporter: Sagar Sumit
>            Assignee: Sagar Sumit
>            Priority: Blocker
>              Labels: pull-request-available
>             Fix For: 0.10.0
>
>
> After crossing a certain number of partitions, we observe performance degradation due to lower parallelism for snapshot query on COW tables in Presto. This does not happen for non-partitioned or tables with partioins in lower hundreds (~ 200-300).
> The issue is independent of the data size. It is more about partitions.



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