If you can, I would upgrade to httpd 2.4.x... If you must stay w/ 2.2.x, then Worker might be more reliable for you than Event. > On Mar 1, 2017, at 9:56 AM, Jayaram Ponnusamy <jayaram.ponnusamy@xxxxxxxxx> wrote: > > Thanks Jim for the suggestion. > I will update > Timeout 5 > KeepAliveTimeout 2 > > We are using Apache 2.2.23 > We will try to install Event MPM and will check. > Thanks > Jay > > > > On Mar 1, 2017 5:05 PM, "Jim Jagielski" <jim@xxxxxxxxxxx> wrote: > You should not be using prefork unless you really, really need to. > > Assuming you are running 2.4.x, I would strongly suggest running > the Event MPM. > > Your Timeout and KeepAliveTimeout values are also way too big; > I'd recommend 5 and 2, respectively. > > > On Mar 1, 2017, at 4:19 AM, Jayaram Ponnusamy <jayaram.ponnusamy@xxxxxxxxx> wrote: > > > > Dear All, > > > > We are using 2 Apache & 2 Tomcat with LoadBalance. Everyday the site is goes down and restarting Apache & Tomcat only help to bring the site back. > > > > I could see below errors on WebServer's Error Log, when the "total children" count increased more than 200 then Apache is not responding. I have included my prefork configuration below. Kindly please help to resolve this issue. > > > > [Wed Mar 01 11:46:39 2017] [info] server seems busy, (you may need to increase StartServers, or Min/MaxSpareServers), spawning 8 children, there are 1 idle, and 464 total children > > [Wed Mar 01 11:47:25 2017] [info] server seems busy, (you may need to increase StartServers, or Min/MaxSpareServers), spawning 8 children, there are 0 idle, and 507 total children > > [Wed Mar 01 11:47:34 2017] [info] server seems busy, (you may need to increase StartServers, or Min/MaxSpareServers), spawning 8 children, there are 0 idle, and 522 total children > > [Wed Mar 01 11:47:35 2017] [info] server seems busy, (you may need to increase StartServers, or Min/MaxSpareServers), spawning 16 children, there are 3 idle, and 530 total children > > [Wed Mar 01 11:48:22 2017] [info] server seems busy, (you may need to increase StartServers, or Min/MaxSpareServers), spawning 8 children, there are 0 idle, and 578 total children > > [Wed Mar 01 11:48:23 2017] [info] server seems busy, (you may need to increase StartServers, or Min/MaxSpareServers), spawning 16 children, there are 0 idle, and 586 total children > > [Wed Mar 01 11:48:24 2017] [info] server seems busy, (you may need to increase StartServers, or Min/MaxSpareServers), spawning 32 children, there are 0 idle, and 602 total children > > [Wed Mar 01 11:48:25 2017] [info] server seems busy, (you may need to increase StartServers, or Min/MaxSpareServers), spawning 32 children, there are 0 idle, and 634 total children > > [Wed Mar 01 11:48:26 2017] [info] server seems busy, (you may need to increase StartServers, or Min/MaxSpareServers), spawning 32 children, there are 0 idle, and 666 total children > > [Wed Mar 01 11:48:27 2017] [info] server seems busy, (you may need to increase StartServers, or Min/MaxSpareServers), spawning 32 children, there are 0 idle, and 698 total children > > [Wed Mar 01 11:48:28 2017] [info] server seems busy, (you may need to increase StartServers, or Min/MaxSpareServers), spawning 32 children, there are 0 idle, and 730 total children > > [Wed Mar 01 11:48:29 2017] [info] server seems busy, (you may need to increase StartServers, or Min/MaxSpareServers), spawning 32 children, there are 0 idle, and 762 total children > > [Wed Mar 01 11:48:30 2017] [info] server seems busy, (you may need to increase StartServers, or Min/MaxSpareServers), spawning 32 children, there are 0 idle, and 794 total children > > [Wed Mar 01 11:48:31 2017] [info] server seems busy, (you may need to increase StartServers, or Min/MaxSpareServers), spawning 32 children, there are 0 idle, and 826 total children > > [Wed Mar 01 11:48:32 2017] [info] server seems busy, (you may need to increase StartServers, or Min/MaxSpareServers), spawning 32 children, there are 0 idle, and 858 total children > > [Wed Mar 01 11:48:33 2017] [info] server seems busy, (you may need to increase StartServers, or Min/MaxSpareServers), spawning 32 children, there are 0 idle, and 890 total children > > [Wed Mar 01 11:49:08 2017] [info] server seems busy, (you may need to increase StartServers, or Min/MaxSpareServers), spawning 8 children, there are 0 idle, and 944 total children > > [Wed Mar 01 11:49:09 2017] [info] server seems busy, (you may need to increase StartServers, or Min/MaxSpareServers), spawning 16 children, there are 2 idle, and 952 total children > > [Wed Mar 01 11:50:14 2017] [info] server seems busy, (you may need to increase StartServers, or Min/MaxSpareServers), spawning 8 children, there are 3 idle, and 934 total children > > > > > > mod_jk.log > > [Wed Mar 01 11:58:14 2017][24547:2663257856] [info] jk_open_socket::jk_connect.c (594): connect to 100.10.661.32:8009 failed (errno=110) > > [Wed Mar 01 11:58:14 2017][24547:2663257856] [info] ajp_connect_to_endpoint::jk_ajp_common.c (922): Failed opening socket to (100.10.661.32:8009) (errno=110) > > [Wed Mar 01 11:58:14 2017][24547:2663257856] [error] ajp_send_request::jk_ajp_common.c (1507): (live_svr) connecting to backend failed. Tomcat is probably not started or is listening on the wrong port (errno=110) > > [Wed Mar 01 11:58:14 2017][24547:2663257856] [info] ajp_service::jk_ajp_common.c (2447): (live_svr) sending request to tomcat failed (recoverable), because of error during request sending (attempt=1) > > [Wed Mar 01 11:58:14 2017][24318:2663257856] [info] jk_open_socket::jk_connect.c (594): connect to 100.10.661.32:8009 failed (errno=110) > > [Wed Mar 01 11:58:14 2017][24318:2663257856] [info] ajp_connect_to_endpoint::jk_ajp_common.c (922): Failed opening socket to (100.10.661.32:8009) (errno=110) > > [Wed Mar 01 11:58:14 2017][24318:2663257856] [error] ajp_send_request::jk_ajp_common.c (1507): (live_svr) connecting to backend failed. Tomcat is probably not started or is listening on the wrong port (errno=110) > > [Wed Mar 01 11:58:14 2017][24318:2663257856] [info] ajp_service::jk_ajp_common.c (2447): (live_svr) sending request to tomcat failed (recoverable), because of error during request sending (attempt=1) > > [Wed Mar 01 11:58:14 2017][24282:2663257856] [info] jk_open_socket::jk_connect.c (594): connect to 100.10.661.32:8009 failed (errno=110) > > ------------------------------------------------------------------------------- > > httpd.conf: > > KeepAlive On > > Timeout 300 > > MaxKeepAliveRequests 100 > > KeepAliveTimeout 15 > > > > <IfModule prefork.c> > > StartServers 80 > > ServerLimit 3500 > > MaxClients 3500 > > MaxRequestsPerChild 0 > > </IfModule> > > > > mod_jk.conf: > > <IfModule worker.c> > > StartServers 6 > > MaxClients 230 > > MinSpareThreads 75 > > MaxSpareThreads 150 > > ThreadsPerChild 25 > > MaxRequestsPerChild 0 > > </IfModule> > > > > Daily 20K Plus People will visit our sites. Kindly please provide the solution to resolve this issue. > > > > -- > > Thanks & Regards, > > > > Jayaram Ponnusamy > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx > For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx > > --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx
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