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https://issues.apache.org/jira/browse/AURORA-1722?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15343053#comment-15343053
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Maxim Khutornenko commented on AURORA-1722:
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BTW, the returned collection of events is not really unordered. It's a list and
the order is strictly enforced. We rely on it when extracting the instance
status in many places. E.g.:
https://github.com/apache/aurora/blob/b24619b28c4dbb35188871bacd0091a9e01218e3/src/main/java/org/apache/aurora/scheduler/base/Tasks.java#L136-L138
> 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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