Giovanni Matteo Fumarola created YARN-6871:
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Summary: 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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