Dear Subscribers, I've some problems with Apache under high load (usually more than > 512 clients). When httpd runs for several days some of the slots hung while 'Sending Reply'. When I enter server-status I see the following (BTW, it's not a "rush hour"): Current Time: Friday, 15-Dec-2006 08:50:44 EET Restart Time: Tuesday, 12-Dec-2006 09:10:53 EET Parent Server Generation: 0 Server uptime: 2 days 23 hours 39 minutes 50 seconds Total accesses: 6442835 - Total Traffic: 86.3 GB CPU Usage: u3302.37 s375.414 cu.265625 cs0 - 1.43% CPU load 25 requests/sec - 350.6 kB/second - 14.0 kB/request 62 requests currently being processed, 58 idle workers WWWWWWWWWW...................................................... ................................................................ ________K_...................................................... WWWWWWWWWW...................................................... ................................................................ _K____K___...................................................... _________K...................................................... K___K_____...................................................... W___K_K___...................................................... WWWWWWWWW....................................................... WWWWWWWWWW...................................................... WWWWWWWWWW...................................................... WWWWWWWWWW...................................................... ................................................................ I use: # uname -a FreeBSD webhosting.xxxxx.net 6.1-RELEASE FreeBSD 6.1-RELEASE #0: Fri Jun 9 08:45:16 EEST 2006 # httpd -V Server version: Apache/2.2.3 Server built: Nov 30 2006 00:43:16 Server's Module Magic Number: 20051115:3 Server loaded: APR 1.2.7, APR-Util 1.2.7 Compiled using: APR 1.2.7, APR-Util 1.2.7 Architecture: 64-bit Server MPM: Worker threaded: yes (fixed thread count) forked: yes (variable process count) Server compiled with.... -D APACHE_MPM_DIR="server/mpm/worker" -D APR_HAS_SENDFILE -D APR_HAS_MMAP -D APR_USE_FLOCK_SERIALIZE -D APR_USE_PTHREAD_SERIALIZE -D SINGLE_LISTEN_UNSERIALIZED_ACCEPT -D APR_HAS_OTHER_CHILD -D AP_HAVE_RELIABLE_PIPED_LOGS -D DYNAMIC_MODULE_LIMIT=128 -D HTTPD_ROOT="/usr/local" -D SUEXEC_BIN="/usr/local/bin/suexec" -D DEFAULT_SCOREBOARD="/var/run/apache_runtime_status" -D DEFAULT_ERRORLOG="/var/log/httpd-error.log" -D AP_TYPES_CONFIG_FILE="etc/apache22/mime.types" -D SERVER_CONFIG_FILE="etc/apache22/httpd.conf" # php -v PHP 4.4.4 with Suhosin-Patch 0.9.5 (cli) (built: Nov 30 2006 00:52:20) Copyright (c) 1997-2004 The PHP Group Zend Engine v1.3.0, Copyright (c) 1998-2004 Zend Technologies with eAccelerator v0.9.5, Copyright (c) 2004-2006 eAccelerator, by eAccelerator # mysql -V mysql Ver 14.7 Distrib 4.1.22, for portbld-freebsd6.1 (amd64) using 5.0 Some settings from httpd.conf: Timeout 30 KeepAlive On MaxKeepAliveRequests 150 KeepAliveTimeout 2 <IfModule mpm_worker_module> StartServers 2 ServerLimit 80 MaxClients 800 MinSpareThreads 25 MaxSpareThreads 75 ThreadsPerChild 10 MaxRequestsPerChild 0 </IfModule> Why does it happen? How can I prevent it? Thank you! -- Oleksandr Samoylyk OVS-RIPE --------------------------------------------------------------------- The official User-To-User support forum of the Apache HTTP Server Project. See <URL:http://httpd.apache.org/userslist.html> for more info. To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx