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Posted to issues@spark.apache.org by "Micah Kornfield (Jira)" <ji...@apache.org> on 2021/10/08 05:35:00 UTC

[jira] [Commented] (SPARK-34276) Check the unreleased/unresolved JIRAs/PRs of Parquet 1.11 and 1.12

    [ https://issues.apache.org/jira/browse/SPARK-34276?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17425959#comment-17425959 ] 

Micah Kornfield commented on SPARK-34276:
-----------------------------------------

Sorry for the late reply.  PARQUET-2089 has been a long standing bug in the C++ implementation where we were setting file_offset to the beginning of column_chunk metatadata and not the actual data page.  It's not clear to me if this was a problem before parquet-mr 1.12 in practice.  [~gershinsky] Would the fix in PARQUET-2078 make parquet-mr resilient to this bug?

> Check the unreleased/unresolved JIRAs/PRs of Parquet 1.11 and 1.12
> ------------------------------------------------------------------
>
>                 Key: SPARK-34276
>                 URL: https://issues.apache.org/jira/browse/SPARK-34276
>             Project: Spark
>          Issue Type: Task
>          Components: Build, SQL
>    Affects Versions: 3.2.0
>            Reporter: Yuming Wang
>            Assignee: Chao Sun
>            Priority: Blocker
>
> Before the release, we need to double check the unreleased/unresolved JIRAs/PRs of Parquet 1.11/1.12 and then decide whether we should upgrade/revert Parquet. At the same time, we should encourage the whole community to do the compatibility and performance tests for their production workloads, including both read and write code paths.
> More details: [https://github.com/apache/spark/pull/26804#issuecomment-768790620]



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