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Posted to issues@drill.apache.org by "Kunal Khatua (JIRA)" <ji...@apache.org> on 2018/12/04 20:06:00 UTC

[jira] [Updated] (DRILL-6879) Indicate a warning in the WebUI when a query makes no progress for a long time

     [ https://issues.apache.org/jira/browse/DRILL-6879?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kunal Khatua updated DRILL-6879:
--------------------------------
    Description: 
When running a very large query on a cluster with limited resource, we noticed that one of the node's VM thread freezes the fragment threads as it tries to do some work (GC perhaps?). This is a clear indication that the query is stuck in a weird state where it might not recover from.
Under such circumstances, it makes sense to cancel or atleast warn the user on that page of the query exceeding a certain threshold. 
For detecting this, the user will find that the {{Last Progress}} column in the Fragments Overview section will show large times.

 !image-2018-12-04-11-54-54-247.png! 

  was:
When running a very large query on a cluster with limited resource, we noticed that one of the node's VM thread freezes the fragment threads as it tries to do some work (GC perhaps?). This is a clear indication that the query is stuck in a weird state where it might not recover from.
Under such circumstances, it makes sense to cancel or atleast warn the user on that page of the query exceeding a certain threshold. 
For detecting this, the user will find that the {{Last Progress}} column in the Fragments Overview section will show large times.
 !image-2018-12-04-11-54-54-247.png|thumbnail! 


> Indicate a warning in the WebUI when a query makes no progress for a long time
> ------------------------------------------------------------------------------
>
>                 Key: DRILL-6879
>                 URL: https://issues.apache.org/jira/browse/DRILL-6879
>             Project: Apache Drill
>          Issue Type: Improvement
>          Components: Execution - Monitoring, Web Server
>    Affects Versions: 1.14.0
>            Reporter: Kunal Khatua
>            Assignee: Kunal Khatua
>            Priority: Major
>              Labels: user-experience
>             Fix For: 1.16.0
>
>         Attachments: image-2018-12-04-11-54-54-247.png
>
>   Original Estimate: 168h
>  Remaining Estimate: 168h
>
> When running a very large query on a cluster with limited resource, we noticed that one of the node's VM thread freezes the fragment threads as it tries to do some work (GC perhaps?). This is a clear indication that the query is stuck in a weird state where it might not recover from.
> Under such circumstances, it makes sense to cancel or atleast warn the user on that page of the query exceeding a certain threshold. 
> For detecting this, the user will find that the {{Last Progress}} column in the Fragments Overview section will show large times.
>  !image-2018-12-04-11-54-54-247.png! 



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