[SOLR-13773] Add env-var options to prometheus-exporter start script.

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 8.3, 9.0
• Fix Version/s: 8.3, 9.0
• Component/s: contrib - prometheus-exporter, metrics
• Labels: metric-collector
• Assignee: Anshum Gupta
• Reporter: Houston Putman
• Created: 17/Sep/19 17:23
• Updated: 12/May/22 00:27
• Resolved: 18/Sep/19 20:57

Description

The startup options for the Prometheus Exporter are pretty sparse compared to what the Solr start script offers.

I've added some options that mirror what Solr offers, such as

• SOLR_HEAP
• SOLR_JAVA_MEM
• GC_TUNE

Having just the memory settings available would let us start the prometheus exporter with more than 500 Mb of heap, which right now isn't possible as the max heap is hard coded here.

Issue Links

• links to: GitHub Pull Request #887
• links to: GitHub Pull Request #890