Naganarasimha G R commented on YARN-4479:

Hi [~rohithsharma], 
As discussed offline, 
Assume b4 recovery Apps which were activated  : 
*A1*(Low),*A2*(Low),*A3*(Medium) and pending were *A4*(High) & *A5*(High)
Based on the current approach applications will be activated in the order 
After your patch it will be  *A3,A1,A2,A4,A5*
So in a way its better than the existing approach but wanted to know whether 
the order of activation should be *A1, A2, A3* itself and not based on the 
ordering policy for the recovered apps, Thoughts ?
IIUC [~sunilg] also wanted to say the same ?

> Retrospect app-priority in pendingOrderingPolicy during recovering 
> applications
> -------------------------------------------------------------------------------
>                 Key: YARN-4479
>                 URL: https://issues.apache.org/jira/browse/YARN-4479
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: api, resourcemanager
>            Reporter: Rohith Sharma K S
>            Assignee: Rohith Sharma K S
>         Attachments: 0001-YARN-4479.patch
> Currently, same ordering policy is used for pending applications and active 
> applications. When priority is configured for an applications, during 
> recovery high priority application get activated first. It is possible that 
> low priority job was submitted and running state. 
> This causes low priority job in starvation after recovery

This message was sent by Atlassian JIRA

Reply via email to