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Posted to dev@hive.apache.org by "Szehon Ho (JIRA)" <ji...@apache.org> on 2014/11/11 00:30:33 UTC
[jira] [Commented] (HIVE-8776) Generate MapredLocalWork in
SparkMapJoinResolver [Spark Brach]
[ https://issues.apache.org/jira/browse/HIVE-8776?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14205558#comment-14205558 ]
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: https://issues.apache.org/jira/browse/HIVE-8776
> 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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