[jira] [Commented] (YARN-6871) Add a new REST API GetAppReport call lighter and faster than the current one

["Subru Krishnan (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/YARN-6871?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16100910#comment-16100910 ] 

Subru Krishnan commented on YARN-6871:
--------------------------------------

[~giovanni.fumarola], +1 on the proposal. Can we use the generic *deSelects* param introduced in YARN-6280 to achieve the same?

[~cltlfcjin]/[~sunilg], thoughts?

> 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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