Re: [users@httpd] General question - Apache server-status page

[Issac Goldstand]

Given that you're running PHP (based on eAccellerator - and BTW, I personally prefer APC), the W and C are probably because reading the request takes up very little time; most of the request time goes to PHP execution (which is all "W" if I'm not mistaken).  The remaining "C"s I'm not so sure about, but I imagine you have keepalive's off (or I'd expect to hear of "K"s) and the closing is just your backend waiting for the load-balancer to get back and finish closing the socket...  But I'm curious as to why that should be - do you not have keepalives enabled between your loadbalancer and backends? On 13/06/2011 22:01, Rob Morin wrote: My problem is as it stands, the loads are too high already, at peek times our Dual Quad Core Xeons with 18 gigs of ram go as high as 100.00 and this is with a max clients of 600. We do use memcache and eaccelerator…   I mean I should have been more clear… I do know what the W and C are I was just wondering why there would only W and Cs.. sorry for the confusion there…   When the server is at a load of 100 we still have 2 to 3 gigs of ram to spare and there is never any swapping…   I just do not think that the problem is server capacity, it seems to be something else I think, but not sure what?   In a top I see every couple of mins on all servers this… 22498 apache    15   0     0    0    0 Z  0.3  0.0   0:45.98 httpd <defunct>   Right now all our server are at …   top - 14:58:31 up 7 days,  3:49,  3 users,  load average: 138.71, 121.10, 85.80 Tasks: 759 total,   1 running, 757 sleeping,   0 stopped,   1 zombie Cpu(s): 13.2%us,  2.5%sy,  0.0%ni, 82.9%id,  0.0%wa,  0.1%hi,  1.3%si,  0.0%st Mem:  18470312k total, 12042288k used,  6428024k free,   580252k buffers Swap:  2096472k total,        0k used,  2096472k free,  8233784k cached     Current Time: Monday, 13-Jun-2011 15:00:26 EDT Restart Time: Monday, 13-Jun-2011 12:54:23 EDT Parent Server Generation: 0 Server uptime: 2 hours 6 minutes 3 seconds Total accesses: 1062620 - Total Traffic: 197.1 MB CPU Usage: u2966.14 s1473.45 cu0 cs0 - 58.7% CPU load 141 requests/sec - 26.7 kB/second - 194 B/request 378 requests currently being processed, 201 idle workers WW_WW_CC_WCC_.__WWWWWW_.WW__W__W___WCWWCWW_CWW_CWWCWWW_WW__C__WW W__W___.WCC____CCCWWW_WC_W_WW_C_CCWWWC__CW_W.WWWWWW_W_CW.W__WWCC WWRW_WWW_WW___WC_WW_RWW_W_W_WWW_C___WWCCC__WWWWW_W___WC_C.WWWWC_ W_WWW___W__C_WWWWW_WWWWW_WW_W.WWW_WW_..___WCW___W_CWC_W_WW_WWWW. WC_WCWWCWCW_W_CC_.__.__WWC_CCCW_W_WW_W_W_WCWWWW___WWW_C__W__WWW_ _CWWC_W.WCW_CWCWW_WCWCW__W_CCW._WCCW_WC__WWWWW_C_WW_WCWWW__WCCCC W_W_W_WWCWWW_WWW_WWW_CWC____..WWW_W__W_.CWC_C_WC_C_WC___WW_WWWC_ _W_WW__WWW_C_WWCW__WW_W_WCW_W__CCWCCC_WWCW_..___WW_C_WWWWW_WCW_W __.__WW__W_C_CC__WCCWWWCWC_WW__W_R_WWC_W_W__WWWWWWWC_C_C_W__CRC_ WWCW_C__._WW_WCWWWWWW_WW       I am sad….     Rob Morin Systems Administrator Infinity Labs Inc. (514) 387-0638 Ext: 207     From: Issac Goldstand [mailto:mar...@beamartyr.net] Sent: Monday, June 13, 2011 2:36 PM To: users@httpd.apache.org Subject: Re: [users@httpd] General question - Apache server-status page   That your server(s) is/are swamped. Consider adding more worker threads/processes.   Issac On 13/06/2011 21:23, Rob Morin wrote: If I see all the slots filled with W and C only, what would that indicate, this is during high traffic times..   We are on Centos 64 bit with Apache 2.2,  and have 6 webservers behind HAproxy   Thanks..       Rob Morin Systems Administrator Infinity Labs Inc. (514) 387-0638 Ext: 207