question Yarn.exclude file has deleted node in Archives of Support Questions (Read Only)

Yarn.exclude file has deleted node

pmj — Fri, 26 May 2017 04:49:39 GMT

Hi all, I had some issues with a node and decomissioned it and deleted it. But after I cleaned it up and commissioned back again, it is still showing in the yarn.exclude file. I came to know about this when Nodemanager is shutting down failing to register with Resource manager. I would like to know if i can just go to the exclude file on RM's (HA) and delete the hostname ? I dont need to restart any master services right ?? like YARN... please advise.

Thanks.

Re: Yarn.exclude file has deleted node

nshelke — Fri, 26 May 2017 10:00:21 GMT

@PJ

Yes off course, you can go to RM's and delete the hostname from the yarn.exclude file. After that you don't need to restart the YARN service after that just execute below command,

yarn rmadmin -refreshNodes

check with this.

Re: Yarn.exclude file has deleted node

pmj — Tue, 30 May 2017 21:07:01 GMT

@nshelke

I did this, but in Ambari the alert is still showing as a Dead node..??

Re: Yarn.exclude file has deleted node

pmj — Tue, 30 May 2017 21:09:09 GMT

NEver mind .. it is gone .. Thanks..

Re: Yarn.exclude file has deleted node

pmj — Wed, 31 May 2017 03:17:45 GMT

@nshelke

I am getting stale alerts for the datanode for few minutes and it goes away and comes back again.... jobs were running slow because of this. I stopped it for now... should i decommission it and comission back again?

Re: Yarn.exclude file has deleted node

nshelke — Wed, 31 May 2017 10:30:37 GMT

@PJ

This might be problem of your network, due to which heartbeat is interrupting. You can decommission it and commission it back one by one.