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https://issues.apache.org/jira/browse/PARQUET-179?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14307683#comment-14307683
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Ryan Blue commented on PARQUET-179:
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I agree with this, although with PARQUET-139 we shouldn't need (or try to use)
either _metadata or _common_metadata. Those assume that the files in the
directory haven't changed and could be a lurking problem.
> Retire _metadata generation
> ----------------------------
>
> Key: PARQUET-179
> URL: https://issues.apache.org/jira/browse/PARQUET-179
> Project: Parquet
> Issue Type: Task
> Reporter: elif dede
> Assignee: elif dede
>
> We can disable _metadata file generation since it is not being used anymore
> to reduce the memory usage during commit phase.
> We are keeping the _common_metadata since it is less memory expensive.
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