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https://issues.apache.org/jira/browse/SLIDER-1168?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15654923#comment-15654923
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Gour Saha commented on SLIDER-1168:
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YARN now has the API to filter by application tags - YARN-4491. We should be
able to use this to avoid expensive calls.
> Avoid or eliminate expensive YARN get all applications call
> -----------------------------------------------------------
>
> Key: SLIDER-1168
> URL: https://issues.apache.org/jira/browse/SLIDER-1168
> Project: Slider
> Issue Type: Bug
> Affects Versions: Slider 0.91
> Reporter: Gour Saha
>
> YARN get all applications call will prove to be very costly in a cluster with
> hundreds or thousands of Slider apps running. We need to come up with a
> strategy to avoid or eliminate these expensive calls. This would mean that
> the application id needs to be stored in Slider's state store in HDFS (or
> some other better strategy). This is specifically more critical when Slider
> Client calls are made from a service like the YARN native REST API service
> (YARN-4793).
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