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https://issues.apache.org/jira/browse/HIVE-27423?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alagappan Maruthappan updated HIVE-27423:
-----------------------------------------
Description:
Right now Hive-3 only supports MR execution engine for its DML operations.
MR is almost obsolete and majority of the users use Tez execution engine for
their Hive jobs.
Most of the components needed for Tez to support Iceberg tables are available
in MR and can be reused.
Few Tez related fixes which were done in Hive-4 had to be ported:
https://issues.apache.org/jira/browse/HIVE-24758
https://issues.apache.org/jira/browse/HIVE-24629
https://issues.apache.org/jira/browse/HIVE-25006 - Part of this commit needs to
happen in Iceberg.
PR raised in Iceberg - [https://github.com/apache/iceberg/pull/7802]
was:
Right now Hive-3 only supports MR execution engine for its DML operations.
MR is almost obsolete and majority of the users use Tez execution engine for
their Hive jobs.
Most of the components needed for Tez to support Iceberg tables are available
in MR and can be reused.
Few Tez related fixes which were done in Hive-4 had to be ported:
https://issues.apache.org/jira/browse/HIVE-24758
https://issues.apache.org/jira/browse/HIVE-24629
https://issues.apache.org/jira/browse/HIVE-25006 - Part of this commit needs to
happen in Iceberg.
> Iceberg: Add support for Tez Execution engine in Hive-3.x
> ---------------------------------------------------------
>
> Key: HIVE-27423
> URL: https://issues.apache.org/jira/browse/HIVE-27423
> Project: Hive
> Issue Type: Task
> Reporter: Alagappan Maruthappan
> Assignee: Alagappan Maruthappan
> Priority: Major
> Labels: pull-request-available
>
> Right now Hive-3 only supports MR execution engine for its DML operations.
> MR is almost obsolete and majority of the users use Tez execution engine for
> their Hive jobs.
> Most of the components needed for Tez to support Iceberg tables are available
> in MR and can be reused.
> Few Tez related fixes which were done in Hive-4 had to be ported:
> https://issues.apache.org/jira/browse/HIVE-24758
> https://issues.apache.org/jira/browse/HIVE-24629
> https://issues.apache.org/jira/browse/HIVE-25006 - Part of this commit needs
> to happen in Iceberg.
> PR raised in Iceberg - [https://github.com/apache/iceberg/pull/7802]
>
>
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