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https://issues.apache.org/jira/browse/AMBARI-17529?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jayush Luniya updated AMBARI-17529:
-----------------------------------
    Fix Version/s:     (was: 2.4.0)
                   2.5.0

> Ambari LogSearch REST Layer should not queue up requests that have already 
> been made
> ------------------------------------------------------------------------------------
>
>                 Key: AMBARI-17529
>                 URL: https://issues.apache.org/jira/browse/AMBARI-17529
>             Project: Ambari
>          Issue Type: Bug
>          Components: ambari-server
>    Affects Versions: 2.4.0
>            Reporter: Robert Nettleton
>            Assignee: Robert Nettleton
>            Priority: Critical
>             Fix For: 2.5.0
>
>
> The review for the fix for AMBARI-17510 brought up some interesting issues 
> that should be investigated and addressed in a separate patch.
> From [~jonathan.hurley]'s comments on https://reviews.apache.org/r/49474/:
> "Based on what we've seen, the requests to the LOGSEARCH endpoint don't 
> return until the connection times out (which could be never depending on 
> what's configured). This will then cause this Executor to fill it's queue 
> with a backlog of requests.
> Instead, maybe it would be better to:
> - Only enqueue if the request isn't already enqueued
> - Use a bounded executor and rejection policy"
> This work will involve investigating the best approach towards limiting the 
> possibility of duplicate requests being made to the LogSearch REST service, 
> either by making a check prior to adding the request, or by using a bounded 
> executor in the way described above. 



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