[jira] [Commented] (IMPALA-4224) Add backend support for join build sinks in parallel plans

["ASF subversion and git services (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/IMPALA-4224?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16795613#comment-16795613 ] 

ASF subversion and git services commented on IMPALA-4224:
---------------------------------------------------------

Commit 9090fc239b62c0d698c6c256c20d86b69f8cc64f in impala's branch refs/heads/master from Tim Armstrong
[ https://gitbox.apache.org/repos/asf?p=impala.git;h=9090fc2 ]

IMPALA-8097: mt_dop for all queries via hidden flag

--unlock_mt_dop=true unlocks mt_dop for all queries
including joins and inserts.

This disables the parallel plans with separate join builds
when running standalone, because these are not executable
until IMPALA-4224 is implemented. Inserts work without
modification - they were disabled because of lack of
testing and the possibility for generating many small
files with unpartitioned inserts - see IMPALA-8125.

Testing:
Add custom cluster test that exercise joins, runtime filters
and inserts as a sanity check for the flag.

Ran exhaustive build.

Manually ran TPC-H and TPC-DS tests against a minicluster
with mt_dop = 4.

Change-Id: I72f0b02a005e8bf22fd17b8fb5aabf8c0d9b6b15
Reviewed-on: http://gerrit.cloudera.org:8080/12257
Reviewed-by: Impala Public Jenkins <im...@cloudera.com>
Tested-by: Impala Public Jenkins <im...@cloudera.com>


> Add backend support for join build sinks in parallel plans
> ----------------------------------------------------------
>
>                 Key: IMPALA-4224
>                 URL: https://issues.apache.org/jira/browse/IMPALA-4224
>             Project: IMPALA
>          Issue Type: Sub-task
>          Components: Backend
>    Affects Versions: Impala 2.8.0
>            Reporter: Tim Armstrong
>            Priority: Major
>
> Now that IMPALA-3567 is solved, the next step is to add the plumbing to have a join builder as the sink of a plan fragment to implement the parallel plans added in http://gerrit.cloudera.org:8080/2846



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