Apache Pinot

Can anyone tell me how to see pinot server metrics(either via some api or jmx) and how to set lead controller for retention job?

<https://docs.pinot.apache.org/users/tutorials/monitor-pinot-using-prometheus-and-grafana>

Retention job will kick off automatically as long as you set retentions in table config

we have mentioned that in the settings but for it to run table should have lead controller assigned to them as all periodic jobs runs on lead controller

<https://cwiki.apache.org/confluence/display/PINOT/Controller+Separation+between+Helix+and+Pinot>

In class doc for rententionManager in pinot, the same is mentioned in comments

```/**
 * The &lt;code&gt;RetentionManager&lt;/code&gt; class manages retention for all segments and delete expired segments.
 * &lt;p&gt;It is scheduled to run only on leader controller.
 */```


That will also happen automatically. You don't need to set anything else other than retention in table