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From "Szehon Ho (JIRA)" <>
Subject [jira] [Commented] (HIVE-8776) Generate MapredLocalWork in SparkMapJoinResolver [Spark Brach]
Date Mon, 10 Nov 2014 23:30:33 GMT


Szehon Ho commented on HIVE-8776:

Did we want to commit this to allow more people to work on this in parallel?  We could if
we omit the change to enable map-join optimizer.

> Generate MapredLocalWork in SparkMapJoinResolver [Spark Brach]
> --------------------------------------------------------------
>                 Key: HIVE-8776
>                 URL:
>             Project: Hive
>          Issue Type: Sub-task
>          Components: Spark
>    Affects Versions: spark-branch
>            Reporter: Chao
>            Assignee: Chao
>         Attachments: HIVE-8776.patch
> In {{SparkMapJoinResolver}}, we need to populate {{MapredLocalWork}} for all MapWorks
with {{MapJoinOperator}}. It is needed later in {{HashTableLoader}}, for example, to retrieve
small hash tables and direct fetch tables.
> We need to set up information, such as aliasToWork, aliasToFetchWork, directFetchOp,
inputFileChangeSensitive, tmpPath, etc., for the new local works.

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