[jira] [Closed] (HUDI-4753) More accurate evaluation of log record during log writing or compaction

["sivabalan narayanan (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HUDI-4753?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

sivabalan narayanan closed HUDI-4753.
-------------------------------------
    Resolution: Fixed

> More accurate evaluation of log record during log writing or compaction
> -----------------------------------------------------------------------
>
>                 Key: HUDI-4753
>                 URL: https://issues.apache.org/jira/browse/HUDI-4753
>             Project: Apache Hudi
>          Issue Type: Improvement
>          Components: metadata
>            Reporter: Yuwei Xiao
>            Assignee: Yuwei Xiao
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 0.13.0
>
>
> In current log writing, the avgRecordSize is taken from the first incoming log record, which may not be accurate, especially in the metadata table case.
>  
> In metadata table writing, the first log record is always `_{_}all_partition{_}_`, whose size may be much larger than a normal partition record.
>  
> This issue will cause performance issue in log writing and compaction, as we write too many log blocks and spill unnecessary records to disk.
>  
>  



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