question Re: where to set cloudera manager server's heap size setting ? in Archives of Support Questions (Read Only)

where to set cloudera manager server's heap size setting ?

vganji — Fri, 16 Sep 2022 09:31:05 GMT

Hello ,

Where to change cloudera manager's heap size for GC ? I am running CM 4.8.5.

Re: where to set cloudera manager server's heap size setting ?

GautamG — Tue, 09 Jun 2015 01:30:29 GMT

Please edit the file /etc/default/cloudera-scm-server, the property is
called CMF_JAVA_OPTS and the heap can be set with the -Xmx parameter

Re: where to set cloudera manager server's heap size setting ?

vganji — Tue, 09 Jun 2015 05:30:38 GMT

Thank you, Gautam. Appreciate it.

Re: where to set cloudera manager server's heap size setting ?

vganji — Tue, 09 Jun 2015 17:29:28 GMT

Gautam, Could you also help me out with how/where to enable GC logging for cloudera manager server ?

Re: where to set cloudera manager server's heap size setting ?

GautamG — Fri, 12 Jun 2015 02:53:23 GMT

The same parameter can be used to add other Java options, say to add GC
logging. The list of options can be seen here:

http://www.oracle.com/technetwork/articles/java/vmoptions-jsp-140102.html

Re: where to set cloudera manager server's heap size setting ?

vganji — Fri, 26 Jun 2015 21:08:43 GMT

Gautam, what is recommended heapsize setting for CM services liek service monitor, host monitor, activity monitor ? For say: around 500 node cluster ?

And slow we have mis configured alerts in CM for JT HA, we dont have HA setup i see health test result for MAPREDUCE_HA_JOB_TRACKER_HEALTH going bad very frequently. Our JT health is just fine.

Re: where to set cloudera manager server's heap size setting ?

GautamG — Mon, 29 Jun 2015 00:46:15 GMT

Since the cluster is relatively large, for mgmt roles you can start with 2GB heap and tune upwards if required. This is just an estimate though.

Regarding the JT health alert, please start a new thread in the Cloudera Manager forum.