[jira] [Comment Edited] (AURORA-1722) Add new field to TaskQuery to allow querying latest statuses grouped by instance id

["Igor Morozov (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/AURORA-1722?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15343026#comment-15343026 ] 

Igor Morozov edited comment on AURORA-1722 at 6/21/16 11:27 PM:
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What would be the scope of this limit? I think it is wired now in a way that I can limit the output but it doesn't guarantee I receive at least one status update per instance and the order of those events is not defined. That means that I may need to scroll through lots of task updates to collect latest statuses for all instances in a job.


was (Author: igmorv):
What would be the scope of this limit? I think it is wired now in a way that I can limit the output but it doesn't guarantee I receive at least one status update per instance and the order of those events is uncertain. That means that I may need to scroll through lots of task updates to collect latest statuses for all instances in a job.

> Add new field to TaskQuery to allow querying latest statuses grouped by instance id
> -----------------------------------------------------------------------------------
>
>                 Key: AURORA-1722
>                 URL: https://issues.apache.org/jira/browse/AURORA-1722
>             Project: Aurora
>          Issue Type: Task
>          Components: Scheduler
>    Affects Versions: 0.16.0
>            Reporter: Igor Morozov
>
> Currently in order to get the status of all job instances both failed and running one needs to issue a query for all task statuses, then group them by instance id and sort by timestamp to get the lastest statuses per instance. 
> For tasks with a lot of churn that may cause unnecessary transferring huge blobs of thrifts. 
> The proposal is to include new member into TaskQuery struct
> struct TaskQuery {
> ...
>   14: i32 limit_per_instance
> }



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