You could use mod_status:
http://httpd.apache.org/docs/2.4/mod/mod_status.html
Tim
From: vitthal@tatamotors.com [mailto:vitthal@tatamotors.com]
Sent: 22 August 2013 08:48
To: users@httpd.apache.org
Subject: [users@httpd] Threads for MPM worker
Hi,
How to find number of threads are free
Hi,
I'm running apache on windows 2008 r2 and I'm seeing that some file handles
are being left open when using mod_cache_disk for some content. The I've
configured apache to cache all images locally as in my environment they reside
on a network share. This issue occurs after a number of days