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https://issues.apache.org/jira/browse/IMPALA-8617?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Abhishek Rawat resolved IMPALA-8617.
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Resolution: Fixed
Fix Version/s: Impala 3.3.0
> Add support for lz4 in parquet
> ------------------------------
>
> Key: IMPALA-8617
> URL: https://issues.apache.org/jira/browse/IMPALA-8617
> Project: IMPALA
> Issue Type: Improvement
> Components: Backend
> Reporter: Abhishek Rawat
> Assignee: Abhishek Rawat
> Priority: Major
> Labels: parquet
> Fix For: Impala 3.3.0
>
>
> Hadoop uses a native block format for LZ4 (same as parquet-mr api) which is
> incompatible with LZ4 block format.
> As a result Parquet/LZ4 could have different block formats.
> The parquet-cpp api (now Apache Arrow) uses LZ4 frame format, which is also
> incompatible with LZ4 block format.
> The current decision is to use a format compatible with Hive, Spark and
> parquet-mr.
>
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