sometimes websites not reachable

AlpineSwiss · Sep 1st 2015

Hi,

Sometimes my websites are not reachable but the panel is reable without any problem.
After a server restart it runs smooth for few fews then i need to restart to solve the same problem.

In the apache error.log i have these errors:

Code

[Tue Sep 01 13:42:34.758254 2015] [mpm_worker:error] [pid 7648:tid 140297765693312] AH00287: server is within MinSpareThreads of MaxRequestWorkers, consider raising the MaxRequestWorkers setting
[Tue Sep 01 13:45:01.812516 2015] [mpm_worker:error] [pid 7648:tid 140297765693312] AH00286: server reached MaxRequestWorkers setting, consider raising the MaxRequestWorkers setting
[Tue Sep 01 13:57:59.044184 2015] [core:error] [pid 7648:tid 140297765693312] AH00046: child process 17827 still did not exit, sending a SIGKILL
[Tue Sep 01 13:57:59.044295 2015] [core:error] [pid 7648:tid 140297765693312] AH00046: child process 19630 still did not exit, sending a SIGKILL
[Tue Sep 01 13:57:59.044349 2015] [core:error] [pid 7648:tid 140297765693312] AH00046: child process 17828 still did not exit, sending a SIGKILL
[Tue Sep 01 13:57:59.044400 2015] [core:error] [pid 7648:tid 140297765693312] AH00046: child process 19959 still did not exit, sending a SIGKILL
[Tue Sep 01 13:57:59.044448 2015] [core:error] [pid 7648:tid 140297765693312] AH00046: child process 19988 still did not exit, sending a SIGKILL
[Tue Sep 01 13:57:59.044491 2015] [core:error] [pid 7648:tid 140297765693312] AH00046: child process 20049 still did not exit, sending a SIGKILL
[Tue Sep 01 13:58:00.045765 2015] [mpm_worker:notice] [pid 7648:tid 140297765693312] AH00295: caught SIGTERM, shutting down
[Tue Sep 01 13:58:30.703643 2015] [suexec:notice] [pid 876:tid 140177126885248] AH01232: suEXEC mechanism enabled (wrapper: /usr/lib/apache2/suexec)
[Tue Sep 1 13:58:30 2015] [notice] i-MSCP Vlogger: caught TERM, shutting down
panic: fold_constants JMPENV_PUSH returned 2 at /usr/local/sbin/vlogger line 536.
[Tue Sep 01 13:58:30.721438 2015] [mpm_worker:notice] [pid 906:tid 140177126885248] AH00292: Apache/2.4.10 (Debian) OpenSSL/1.0.1k configured -- resuming normal operations

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All is in standart configuration. What can i do to evite that?

Thanks in advance.

**Backdraft007** · Sep 1st 2015

Hi,

do that what the logs says. Increase MaxRequestWorkers.

Web server is hanging

**Nuxwin** · Sep 1st 2015

Hello

Quote

...
server is within MinSpareThreads of MaxRequestWorkers, consider raising the MaxRequestWorkers setting
...

The answer is here. Search on our forum and/or google.

AlpineSwiss · Sep 1st 2015

Hi,

Thank you for the information, i have take a look into the actuall configuration:

Code

<IfModule mpm_worker_module>
StartServers 2
MinSpareThreads 25
MaxSpareThreads 75
ThreadLimit 64
ThreadsPerChild 25
MaxRequestWorkers 150
MaxConnectionsPerChild 0
</IfModule>

Maybe 250 is a good value here, or need a lot higher ex. 500 ?

**Nuxwin** · Sep 1st 2015

Re;

There is not well know good values. All this depends on your environment and so on. You must perform some tests.

AlpineSwiss · Sep 1st 2015

@Nuxwin

Thank you.

I will rise the MaxRequestWorkers to 250-300 on /etc/apache2/mods-available/mpm_worker.conf an then service apache2 restart.

And lets see if it runs smooth with that in the future

PS. it is a VPS (KVM) 12GB RAM , Intel®Xeon® E5-26xxV3

sometimes websites not reachable

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