Performance statistics

In order to measure performance, Solr provides statistics and metrics; they can read either using Metrics API or by enabling JMX.

Statistics for request handlers

Both search and update request handlers provide various statistics.

The API request path for search is http://localhost:8983/solr/admin/metrics?group=mycore&prefix=QUERY./select.

Similarly the API request path for update is http://localhost:8983/solr/admin/metrics?group=mycore&prefix=UPDATE./update.

There are various attributes that can be added at the end of both of these URLs to get various statistics, as listed here:

• 5minRate: Used to find out the requests per second that have we received in the last 5 minutes.
• 15minRate: Same as 5minRate, but here we check for requests per second in the last 15 minutes.
• p75_ms/p95_ms/p99_ms/p999_ms: Each of the four attributes represent how much processing time x percentile of the request took. x is to be replaced by the number specified.
• count: Number of requests made...