How to count the total number of cores in apache solr 3.5? I am using apache solr 3.5 for one of my Drupal 7 sites. As per a requirement i am supposed to count the total number of cores present in the solr. I am using multicore instance. Is there any option by which i can get the number of cores?
You can find it in your server where solr is hosted in /admin, you will see every core or if you've access to the server you will find it in.

/var/lib/solr/cores/ each folder can be a core.