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From "Sudheesh Katkam (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (DRILL-2697) Pause injections should pause indefinitely until signalled
Date Tue, 05 May 2015 16:16:59 GMT

     [ https://issues.apache.org/jira/browse/DRILL-2697?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sudheesh Katkam reassigned DRILL-2697:
--------------------------------------

    Assignee: Sudheesh Katkam

> Pause injections should pause indefinitely until signalled
> ----------------------------------------------------------
>
>                 Key: DRILL-2697
>                 URL: https://issues.apache.org/jira/browse/DRILL-2697
>             Project: Apache Drill
>          Issue Type: Improvement
>          Components: Execution - Flow
>    Affects Versions: 0.9.0
>            Reporter: Sudheesh Katkam
>            Assignee: Sudheesh Katkam
>             Fix For: 1.0.0
>
>
> Currently injected pauses make threads sleep for a specified time. This can  be an enhanced
to stop the thread indefinitely using a CountDownLatch. It is quite similar to how cancellation
works. 
> Tasks: 
> (a) Add another message to RPC layer to signal paused remote threads to resume (through
ControlHandler) by counting down. Complications if the thread has not reached the pause site
yet.
> (b) Add resume signal (like ctrl-c) to sqlline 
>     (further enhancement: another signal to trigger pause from sqlline)



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