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Posted to dev@parquet.apache.org by "László Bodor (Jira)" <ji...@apache.org> on 2023/03/17 07:26:00 UTC

[jira] [Resolved] (PARQUET-2258) Storing toString fields in FilterPredicate instances can lead to memory pressure

     [ https://issues.apache.org/jira/browse/PARQUET-2258?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

László Bodor resolved PARQUET-2258.
-----------------------------------
    Resolution: Fixed

> Storing toString fields in FilterPredicate instances can lead to memory pressure
> --------------------------------------------------------------------------------
>
>                 Key: PARQUET-2258
>                 URL: https://issues.apache.org/jira/browse/PARQUET-2258
>             Project: Parquet
>          Issue Type: Improvement
>            Reporter: László Bodor
>            Assignee: László Bodor
>            Priority: Major
>             Fix For: 1.12.3
>
>         Attachments: Parquet_Predicate_toString_memory.png, image-2023-03-14-13-27-54-008.png
>
>
> It happens with Hive (HiveServer2), a certain amount of predicate instances can make HiveServer2 OOM. According to the heapdump and background information, the predicates must have been simplified a bit, but still, storing toString in the objects looks very weird.



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