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https://issues.apache.org/jira/browse/LIVY-866?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Nilesh Rathi reassigned LIVY-866:
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Assignee: Nilesh Rathi
> Optimize Yarn GetApplications Query to prevent additional load on Yarn and
> Livy
> -------------------------------------------------------------------------------
>
> Key: LIVY-866
> URL: https://issues.apache.org/jira/browse/LIVY-866
> Project: Livy
> Issue Type: Improvement
> Components: Server
> Reporter: Akshat Bordia
> Assignee: Nilesh Rathi
> Priority: Major
> Fix For: 1.0.0
>
> Time Spent: 1h
> Remaining Estimate: 0h
>
> Currently Livy queries Yarn applications by applicationType : Spark. This
> will put heavy load on Yarn clusters if there are thousands or more Spark
> application in all states (running, finished, failed, queued etc.).
> A better approach would be to query the applications by tags in addition to
> job type since Livy only needs to track application with certain application
> tags. However, YarnClient does not expose any API to query applications by
> tags.
>
> We can extend the YarnClientImpl which would allow us to use protected
> rmClient in YarnClient and we can implement getApplications method with
> GetApplicationsRequest where we can include tags.
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