[jira] [Updated] (HUDI-3882) Make sure Hudi Spark relations implementations provide similar file-scanning metrics

["Zhaojing Yu (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HUDI-3882?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Zhaojing Yu updated HUDI-3882:
------------------------------
    Fix Version/s: 0.13.0
                       (was: 0.12.1)

> Make sure Hudi Spark relations implementations provide similar file-scanning metrics
> ------------------------------------------------------------------------------------
>
>                 Key: HUDI-3882
>                 URL: https://issues.apache.org/jira/browse/HUDI-3882
>             Project: Apache Hudi
>          Issue Type: Improvement
>            Reporter: Alexey Kudinkin
>            Assignee: Alexey Kudinkin
>            Priority: Critical
>             Fix For: 0.13.0
>
>
> After rebasing Hudi's COW table onto `BaseFileOnlyRelation` from `HadoopFsRelation`, we lost very helpful file-scanning metrics like # of files scanned, total size of files scanned, etc.
>  
> After some investigation, i've found out that this occurred b/c now instead of relying on `FileScan` node in Spark plans like we're before, it now uses `DataScan` node that doesn't provide such metrics.
> This unwanted transition occurred b/c Spark internally predicates on `HadoopFsRelation` to decide whether it's a `FileScan` or `DataScan`, and since we stopped using `HadoopFsRelation` Hudi relations now fall into the latter bucket



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