httpd-users mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Jim Jagielski <...@jaguNET.com>
Subject Re: [users@httpd] Apache Crashing Everyday
Date Thu, 02 Mar 2017 11:30:55 GMT
Depending on your version of Tomcat it might be better to move to
using mod_proxy_ajp or even switching to Tomcat's http listener and
talking HTTP.

> On Mar 2, 2017, at 1:55 AM, Jayaram Ponnusamy <jayaram.ponnusamy@gmail.com> wrote:
> 
> Hi Jim & Jason,
> 
> Yes We are planning to upgrade to httpd 2.4.25 (Stable Version). So, in the 2.4.25 also
we should use mod_jk to connect with Tomcat or anyother better options are there?
> Tomcat instances are running on different machines.
> And mod_php is not configured.
> Thanks 
> 
> 
> On Wed, Mar 1, 2017 at 9:19 PM, Jason Brooks <jason.brooks@eroi.com> wrote:
> Hello,
> 
> You will also need to turn off mod_php if it’s loaded.
> 
> —jason
> 
> Jason Brooks	Systems Administrator
> eROI	Performance is Art.
>  
> m:	505 nw couch #300	w:	eroi.com
> t:	503.290.3105	f:	503.228.4249
> 
> 
> fb:	fb.com/eROI
> 
> 
> 
> 
> 
> 
> 
> 
>> On Mar 1, 2017, at 8:35 AM, Jim Jagielski <jim@jaguNET.com> wrote:
>> 
>> 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@gmail.com>
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@jagunet.com> 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@gmail.com>
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@httpd.apache.org
>>> For additional commands, e-mail: users-help@httpd.apache.org
>>> 
>>> 
>> 
>> 
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
>> For additional commands, e-mail: users-help@httpd.apache.org
>> 
> 
> 
> 
> 
> -- 
> Thanks & Regards,
> 
> Jayaram Ponnusamy 
> 


---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
For additional commands, e-mail: users-help@httpd.apache.org


Mime
View raw message