[SOLR-10247] Support non-numeric metrics and a "compact" format of /admin/metrics

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 6.5, 7.0
• Component/s: metrics
• Assignee: Andrzej Bialecki
• Reporter: Andrzej Bialecki
• Created: 08/Mar/17 15:49
• Updated: 08/Jun/19 15:28
• Resolved: 14/Mar/17 11:29

Description

Metrics API currently supports only numeric values. However, it's useful also to report non-numeric values such as eg. version, disk type, component state, some system properties, etc.

Codahale Gauge<T> metric type can be used for this purpose, and convenience methods can be added to SolrMetricManager to make it easier to use.