[jira] [Updated] (YUNIKORN-1939) Add retrieving recent events to the REST interface

["Peter Bacsko (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/YUNIKORN-1939?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Peter Bacsko updated YUNIKORN-1939:
-----------------------------------
    Summary: Add retrieving recent events to the REST interface  (was: Add recent events to the REST interface)

> Add retrieving recent events to the REST interface
> --------------------------------------------------
>
>                 Key: YUNIKORN-1939
>                 URL: https://issues.apache.org/jira/browse/YUNIKORN-1939
>             Project: Apache YuniKorn
>          Issue Type: Sub-task
>          Components: core - scheduler
>            Reporter: Peter Bacsko
>            Assignee: Peter Bacsko
>            Priority: Major
>
> Based on an internal discussion, we need to add extra convenience features to the REST interface.
> 1. Filtering: one might be interested in application-only events.  We don't know when the first event belonging to an app was submitted and if the job runs for hours or days, it's difficult to efficiently retrieve only those which we want. We can rely on the ID but the client has to store it. It's way better if we can specify the event type and possibly more details like appID or queue name (ObjectID).
> 2. Recent "n" events, the implementation of this is not difficult. We calculate the startID based on how many events we want. Right now this cannot be done reliably because right after we determined the startID, new events can arrive, so the last "n" is no longer the last "n".



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