Looking at the overseer API call as documented in the Solr Collections API https://cwiki.apache.org/confluence/display/solr/Collections+API#CollectionsAPI-OVERSEERSTATUS:OverseerStatusandStatistics
The information returned looks like it could be useful in diagnosing problems with Solrcloud. It would be useful to document the metrics it returns What constitutes an "overseer operation"? What is "peek_wait_forever" ? I could go on but it's difficult to interpret the results of this API without more documentation -- This message and any attachment are confidential and may be privileged or otherwise protected from disclosure. If you are not the intended recipient, you must not copy this message or attachment or disclose the contents to any other person. If you have received this transmission in error, please notify the sender immediately and delete the message and any attachment from your system. Merck KGaA, Darmstadt, Germany and any of its subsidiaries do not accept liability for any omissions or errors in this message which may arise as a result of E-Mail-transmission or for damages resulting from any unauthorized changes of the content of this message and any attachment thereto. Merck KGaA, Darmstadt, Germany and any of its subsidiaries do not guarantee that this message is free of viruses and does not accept liability for any damages caused by any virus transmitted therewith. Click http://www.emdgroup.com/disclaimer to access the German, French, Spanish and Portuguese versions of this disclaimer.