On 16/08/2012 9:54 p.m., Yucong Sun (叶雨飞) wrote:
Hi, I've compiled and use 3.2.1 today, however I notice under high concurrent request, my server is showing some slowness in the request start, much like a sceniaor that it only allow X concurrent request and all rest are blocking until it get schedule, so, any idea what might cause this and is there some knob to tune or how to debug such slowness?
Check your FD limitations. The above behaviour is exactly how Squid handles FD exhaustion. cache.log will be recording a "running out of filedescriptors" or similar message under peak traffic.
Amos