diff options
| author | Henning Brauer <henning@cvs.openbsd.org> | 2002-07-19 21:29:11 +0000 |
|---|---|---|
| committer | Henning Brauer <henning@cvs.openbsd.org> | 2002-07-19 21:29:11 +0000 |
| commit | 4e3c665cdc57f3b3c3bd55c93ba971b904873d07 (patch) | |
| tree | 5fd2b6aa260f0eb2ee2b400b01c8475198783e69 /usr.sbin/httpd/htdocs/manual/process-model.html.html | |
| parent | c342d666b3b8754377e618ff96693589167b280b (diff) | |
import apache 1.3.26 + mod_ssl 2.8.10
Diffstat (limited to 'usr.sbin/httpd/htdocs/manual/process-model.html.html')
| -rw-r--r-- | usr.sbin/httpd/htdocs/manual/process-model.html.html | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/usr.sbin/httpd/htdocs/manual/process-model.html.html b/usr.sbin/httpd/htdocs/manual/process-model.html.html new file mode 100644 index 00000000000..d26fe3cee9d --- /dev/null +++ b/usr.sbin/httpd/htdocs/manual/process-model.html.html @@ -0,0 +1,81 @@ +<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" + "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> +<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" + "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> + +<html xmlns="http://www.w3.org/1999/xhtml"> + <head> + <meta name="generator" content="HTML Tidy, see www.w3.org" /> + + <title>Server Pool Management</title> + </head> + <!-- Background white, links blue (unvisited), navy (visited), red (active) --> + + <body bgcolor="#FFFFFF" text="#000000" link="#0000FF" + vlink="#000080" alink="#FF0000"> + <div align="CENTER"> + <img src="images/sub.gif" alt="[APACHE DOCUMENTATION]" /> + + <h3>Apache HTTP Server</h3> + </div> + + + + <h1 align="CENTER">Server Pool Management</h1> + <hr /> + + <p>We found that many people were using values for "MaxServers" + either too high or too low, and were hanging themselves on it. + The model we adopted is still based on long-lived + minimal-forking processes, but instead of specifying one number + of persistent processes, the web-master specifies a maximum and + minimum number of processes to be "spare" - every couple of + seconds the parent checks the actual number of spare servers + and adjusts accordingly. This should keep the number of servers + concurrently running relatively low while still ensuring + minimal forking.</p> + + <p>We renamed the current StartServers to MinSpareServers, + created separate StartServers parameter which means what it + says, and renamed MaxServers to MaxSpareServers (though the old + name still works, for NCSA 1.4 back-compatibility). The old + names were generally regarded as too confusing.</p> + + <p>The defaults for each variable are:</p> +<pre> +MinSpareServers 5 +MaxSpareServers 10 +StartServers 5 +</pre> + There is an absolute maximum number of simultaneous children + defined by a compile-time limit which defaults to 256 and a + "MaxClients" directive which specifies the number of + simultaneous children that will be allowed. MaxClients can be + adjusted up to the compile-time limit (HARD_SERVER_LIMIT, + defined in httpd.h). If you need more than 256 simultaneous + children, you need to modify both HARD_SERVER_LIMIT and + MaxClients. + + <p>In versions before 1.2, HARD_SERVER_LIMIT defaulted to + 150.</p> + + <p>We do not recommend changing either of these values + unless:</p> + + <ol> + <li>You know you have the server resources to handle + more</li> + + <li>You use the machine for other purposes and must limit the + amount of memory Apache uses</li> + </ol> + <hr /> + + <h3 align="CENTER">Apache HTTP Server</h3> + <a href="./"><img src="images/index.gif" alt="Index" /></a> + + </body> +</html> + + + |