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increase the retention for yarn applications logs

increase the retention for yarn applications logs

Super Collaborator

Hi everybody,

I'm trying to increase the yarn application logs retention in my cluster and set the following parameters:


yarn.log-aggregation-enable is set to true
spark.eventLog.enabled is set to true
yarn.log-aggregation.retain-seconds is set to 7 days

 

But, In the resouce manager i can see the logs for the applications only for 3 days and from the resource manager application in CM i can access the logs only from 1 day back.

Can you please help in these 2 issues?

 

2 REPLIES 2

Re: increase the retention for yarn applications logs

Super Collaborator

i see that the permissions of /tmp/logs is 770 and when run the command yarn logs -applicationId with the application owner user, then yes i can see the logs using the Cli command but from the UI no one can see these logs,

 

The group for the dir is cloudera-scm, and i don't have LDAP entry for this group, how i chould let user accessing this from the resource manager UI?

Re: increase the retention for yarn applications logs

Super Collaborator

I notice that yarn.resourcemanager.max-completed-applications is set to 10,000 which almost the running application for 2-3 days.

 

I want to increase the number to 40,000 to cover the retention of 7 days, what other changes i should take inot consideration? should i increase the jaba heap size for the resources manager? should i change any other configuration at the level od node manager? what i should monitor after increasing max completed applications to 40,000? how this make impact the resource manager recovery performance?

 

Thanks in advance.