[SOLR-14965] Adding metrics to track size of Overseer queues

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 8.8
• Component/s: AutoScaling, SolrCloud
• Assignee: David Smiley
• Reporter: Saatchi Bhalla
• Created: 26/Oct/20 21:29
• Updated: 13/Feb/21 00:08
• Resolved: 04/Dec/20 23:00

Description

The Overseer work queues stored in ZK and abstracted by the Overseer can give us a good indication of the health of the cluster - if messages are taking too long to dequeue or the queue is growing too large, we know that the Overseer is overloaded and we are going to overwhelm the cluster.

 

This work will add metrics to track the size of the Overseer queues (number of messages enqueued). 

Issue Links

• links to: GitHub Pull Request #2040