You might use Luke to get that info from the index files without loading them into Solr.
https://code.google.com/archive/p/luke/ wunder Walter Underwood wun...@wunderwood.org http://observer.wunderwood.org/ (my blog) > On Jan 29, 2020, at 2:01 PM, Rahul Goswami <rahul196...@gmail.com> wrote: > > Hello, > I am using Solr 7.2.1 on a Solr node running in standalone mode (-Xmx 8 > GB). I wish to implement a service to monitor the server stats (like number > of docs per core, index size etc) .This would require me to load the core > and my concern is that for a node hosting 100+ cores, this could be > expensive. So here are my questions: > > 1) How expensive is core loading if I am only getting stats like the total > docs and size of the index (no expensive queries)? > 2) Does the memory consumption on core loading depend on the index size ? > 3) What is a reasonable value for transient cache size in a production > setup with above configuration? > > Thanks, > Rahul