[jira] [Commented] (TAJO-1935) Some Tasks don't work after they become TA_ASSIGNED

["Jinho Kim (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/TAJO-1935?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15010041#comment-15010041 ] 

Jinho Kim commented on TAJO-1935:
---------------------------------

Thank you for the reporting.
Some rpc operation timeout is very short and it is unnecessarily operation. If GC pause are over than 10 second, a task can lost. 
I will remove the future timeout because we already use ping timeout in rpc internal.

> Some Tasks don't work after they become TA_ASSIGNED
> ---------------------------------------------------
>
>                 Key: TAJO-1935
>                 URL: https://issues.apache.org/jira/browse/TAJO-1935
>             Project: Tajo
>          Issue Type: Bug
>          Components: QueryMaster
>    Affects Versions: 0.10.1
>            Reporter: Jongyoung Park
>            Assignee: Jinho Kim
>             Fix For: 0.12.0, 0.11.1
>
>         Attachments: issue_log.tar.gz, screenshots.zip
>
>
> The query is like following :
> {code:sql}
> insert overwrite into lineitem_tmp
> select
>   l_partkey as t_partkey, 0.2 * avg(l_quantity) as t_avg_quantity
> from
>   lineitem
> group by l_partkey;
> {code}
> It is from query #17 of TPC-H.
> From eb2, only 2 tasks were not running after TA_ASSIGNED and query was in infinite loop.
> It ran on TPC-H 10TB.
> Corresponding web pages and log are attached.



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