retaining more impala profiles.

[#1]

On a periodic basis (via a script called from cron), we are pulling both the Impala text and thrift profiles from the CM.  It works fine mostly.

Following this:
    https://cloudera.github.io/cm_api/apidocs/v13/path__clusters_-clusterName-_services_-serviceName-_im...

During very busy periods, pulling profiles sometimes returns “Unknown profile” errors.  We are assuming that the profiles are rolling off.

Is it possible to a) extend the retention period, and/or b) increase the number saved.

[#2 · Accepted solution]

The following page shows how to adjust the space used by CM to store these profiles: 

https://www.cloudera.com/documentation/enterprise/5-15-x/topics/cm_ig_storage.html#concept_vtk_pqk_n...

Let me know if that helps with the issue.