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From "Jacques Nadeau (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DRILL-2936) TPCH 4 and 18 SF100 hangs when hash agg is turned off
Date Thu, 07 May 2015 09:15:59 GMT

    [ https://issues.apache.org/jira/browse/DRILL-2936?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14532304#comment-14532304
] 

Jacques Nadeau commented on DRILL-2936:
---------------------------------------

We should use SpoolingRawBatchBuffer in certain plan situations to avoid distributed deadlocks.
 I'll work on the planning component.  [~sphillips], you work on making sure that the SpoolingRawBatchBuffer
is functional and up to date.  I think it hasn't seen use in a number of months.  Note that
I also think we should stop having the bootstrap configuration based choice of which BatchBuffer
to use and hardcode it for the different scenarios.  I don't think anyone is going to plug
something new in at these points.

> TPCH 4 and 18 SF100 hangs when hash agg is turned off
> -----------------------------------------------------
>
>                 Key: DRILL-2936
>                 URL: https://issues.apache.org/jira/browse/DRILL-2936
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Execution - Flow
>            Reporter: Ramana Inukonda Nagaraj
>            Assignee: Steven Phillips
>            Priority: Critical
>             Fix For: 1.0.0
>
>         Attachments: Screen Shot 2015-05-01 at 2.40.36 PM.png
>
>
> sys options:
> {code}
> 0: jdbc:drill:schema=dfs.drillTestDirTpch100P> alter system set `planner.memory.max_query_memory_per_node`
= 29205777612;
> 0: jdbc:drill:schema=dfs.drillTestDirTpch100P> alter system set `planner.enable_hashjoin`=false;
> 0: jdbc:drill:schema=dfs.drillTestDirTpch100P> alter system set `planner.enable_hashagg`=false;
> {code}
> On executing TPCH 04 query hangs. From the profiles page does not look like any fragments
are making progress, the last progress time stamps were sometime back. 
> Attached is the logical plan. 



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