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https://issues.apache.org/jira/browse/PARQUET-164?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14271702#comment-14271702
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Brock Noland commented on PARQUET-164:
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Thinking about this more, we should increment a counter every time this kicks
in. This will allow us to warn the user on the Hive side.
> Warn when parquet memory manager kicks in
> -----------------------------------------
>
> Key: PARQUET-164
> URL: https://issues.apache.org/jira/browse/PARQUET-164
> Project: Parquet
> Issue Type: Bug
> Reporter: Brock Noland
>
> In PARQUET-108 we implemented a memory manager for parquet. I think we should
> warn in the close() method if we had to adjust the memory down so that users
> know their memory is being adjusted down and block size will be less than
> expected.
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