question Re: How to change the Application-Name of a Application Master that is already started in Support Questions

How to change the Application-Name of a Application Master that is already started

juanmgeorge1 — Fri, 23 Jun 2023 08:32:08 GMT

Hi,

I have a requirement where I need to update the Application-Name of a Yarn Application Master (AM) that I use to execute a task. The same Yarn AM is reused to run multiple tasks and and I need to update the Application-Name of the Yarn AM based on the task I run currently.

Example.:

If I am running a sort task, then ' yarn application -list' command should show:

sh-4.4$ yarn application -list

23/06/23 00:34:24 INFO client.RMProxy: Connecting to ResourceManager at abc.def.hig.com/xx.xx.xx.xx:8032

Total number of applications (application-types: [], states: [SUBMITTED, ACCEPTED, RUNNING] and tags: []):2

Application-Id Application-Name Application-Type User Queue State Final-State Progress Tracking-URL

application_1686581388019_0752 sort_job1 YARN dsadm default RUNNING UNDEFINED 0% N/A

And later, If I am running a delete task using the same AM then ' yarn application -list' command should show:

sh-4.4$ yarn application -list

23/06/23 00:34:24 INFO client.RMProxy: Connecting to ResourceManager at abc.def.hig.com/xx.xx.xx.xx:8032

Total number of applications (application-types: [], states: [SUBMITTED, ACCEPTED, RUNNING] and tags: []):2

Application-Id Application-Name Application-Type User Queue State Final-State Progress Tracking-URL

application_1686581388019_0752 delete_job1 YARN dsadm default RUNNING UNDEFINED 0% N/A

Is there a way to do this?

Thank you in advance!

Juan

Re: How to change the Application-Name of a Application Master that is already started

AyazHussain — Wed, 07 Aug 2024 07:38:48 GMT

Hi @juanmgeorge1 ,

You cant change the name of running application

Re: How to change the Application-Name of a Application Master that is already started

ggangadharan — Wed, 28 Aug 2024 08:40:24 GMT

Unfortunately, it is not possible to change the Application-Name of an already started Application Master in Apache Hadoop YARN. The Application-Name is set when the application is submitted and cannot be modified during runtime.

The Application-Name is typically specified as a parameter when submitting the application using the spark-submit command or the YARN REST API. Once the application is started, the Application-Name is fixed and cannot be changed.

If you need to change the Application-Name, you will need to stop the existing application and submit a new one with the desired name.