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https://issues.apache.org/jira/browse/YARN-6871?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16101091#comment-16101091
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Sunil G commented on YARN-6871:
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Yes [~subru]. You could use "deSelects=resourceRequest" for getApps/getApp and
it will make your REST response lighter. Now if more attributes are needed to
be skipped, deSelects is designed in such a way that it can support comma
separated attributes. I think it will be better if we use thats as mentioned by
Subru.
> Add a new REST API GetAppReport call lighter and faster than the current one
> ----------------------------------------------------------------------------
>
> Key: YARN-6871
> URL: https://issues.apache.org/jira/browse/YARN-6871
> Project: Hadoop YARN
> Issue Type: New Feature
> Components: resourcemanager, router
> Reporter: Giovanni Matteo Fumarola
>
> This jira tracks the effort to create a new REST API similar to the current
> GetAppReport but lighter and faster.
> With the current one we are facing a scalability issues.
> E.g. with ~500 applications running the AppReport can reach up to 300MB in
> size due to the {{ResourceRequest}} in the {{AppInfo}}.
> The new method returns for each application the following and essential
> information:
> * The application id;
> * The application name;
> * The application state according to the ResourceManager - valid values are
> members of the YarnApplicationState enum: NEW, NEW_SAVING, SUBMITTED,
> ACCEPTED, RUNNING, FINISHED, FAILED, KILLED;
> * The final status of the application if finished - reported by the
> application itself - valid values are: UNDEFINED, SUCCEEDED, FAILED, KILLED;
> * The web URL that can be used to track the application;
> * Detailed diagnostics information;
> * The URL of the application master container logs;
> * The nodes http address of the application master;
> * The progress of the application as a percent.
> Yarn RM will return the new result faster and it will use less compute cycles
> to create the report and it will improve the YARN RM and Client's
> performances.
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