Thanks for replying. Yes, it is prefork MPM.
Reading this in the Apache documentation … "Do not set the value of this directive any higher than what you might want to set MaxClients<http://httpd.apache.org/docs/2.2/mod/mpm_common.html#maxclients> to." It also says … "Special care must be taken when using this directive. If ServerLimit is set to a value much higher than necessary, extra, unused shared memory will be allocated" What is classified as "much higher?" Is there a negative (or positive) impact of any kind of, for example, setting ServerLimit to 2000 and MaxClients to 512? http://httpd.apache.org/docs/2.2/mod/mpm_common.html#serverlimit Thanks From: Jeff Trawick <traw...@gmail.com<mailto:traw...@gmail.com>> Reply-To: "users@httpd.apache.org<mailto:users@httpd.apache.org>" <users@httpd.apache.org<mailto:users@httpd.apache.org>> Date: Tuesday, August 20, 2013 4:50 PM To: "users@httpd.apache.org<mailto:users@httpd.apache.org>" <users@httpd.apache.org<mailto:users@httpd.apache.org>> Subject: Re: [users@httpd] What is the impact of setting ServerLimit higher than MaxClients? On Aug 20, 2013 4:26 PM, "Rose, John B" <jbr...@utk.edu<mailto:jbr...@utk.edu>> wrote: > > What is the impact of setting the ServerLimit to a value significantly more > than your MaxClients value? Say with a MaxClients set to 512 and ServerLimit > of 2000? > Assuming prefork MPM: You can increase maxclients across graceful restart, up to serverlimit Threaded MPMs: comparing maxclients vs server limit doesn't work without also accounting for threadsperchild > >
