Max Child Connections Reached

bbrian017 · 08-12-2012, 06:16 PM

I'm watching my error_log and I'm seeing the following,

Code:

[Sun Aug 12 15:22:24 2012] [error] server reached MaxClients setting, consider raising the MaxClients setting

Now my server was crashing hardcore and to solve this my friend limited the max child connections.

Can this be causing my server to crash? What is the out come when this happens?

Toggan · 08-13-2012, 12:06 AM

This error itself wouldn't be causing your server to crash. However, this error indicates that connections are being refused by apache because your settings are too low for the traffic you're trying to handle. You're running into your connection limit either because you're seeing a ton of traffic or the pages are taking too long to load. If you're just seeing a ton of traffic and you have the memory to spare, try enabling KeepAlive. If you're running into slowness, you may want to review site code to see if theres something that's inefficient.

Regarding what is the outcome, you're visitors are likely getting 530 errors.

bbrian017 · 08-13-2012, 12:02 PM

So to increase this limit what should I do here,

Code:

<IfModule prefork.c>
StartServers       8
MinSpareServers    5
MaxSpareServers   14
ServerLimit      50
MaxClients       50
MaxRequestsPerChild  1000
</IfModule>

Code:

<IfModule worker.c>
StartServers         2
MaxClients         150
MinSpareThreads     25
MaxSpareThreads     75
ThreadsPerChild     25
MaxRequestsPerChild  0
</IfModule>

Can I do anything to allow more connections?