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Posted to issues@impala.apache.org by "Tim Armstrong (JIRA)" <ji...@apache.org> on 2017/11/22 19:57:00 UTC

[jira] [Resolved] (IMPALA-5170) Streaming gzip decompression for Parquet and Avro files

     [ https://issues.apache.org/jira/browse/IMPALA-5170?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tim Armstrong resolved IMPALA-5170.
-----------------------------------
    Resolution: Won't Fix

> Streaming gzip decompression for Parquet and Avro files
> -------------------------------------------------------
>
>                 Key: IMPALA-5170
>                 URL: https://issues.apache.org/jira/browse/IMPALA-5170
>             Project: IMPALA
>          Issue Type: Improvement
>          Components: Backend
>    Affects Versions: Impala 2.5.0, Impala 2.6.0, Impala 2.7.0, Impala 2.8.0
>            Reporter: Alexander Behm
>              Labels: ramp-up, usability
>
> To reduce the memory consumption of scans over gzip-compressed data, we should implement streaming decompression (gzip supports it).
> Note that our text scanners already perform streaming decompression by default, but that's not the case for other scanners (e.g. Parquet/Avro).



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