Hi Folks, I'm trying to clarify my understanding of the APACHE 1.3 process model on Solaris UNIX. As I understand, "Apache 1.3 on UNIX is a pre-forking process per request server". This means that Apache effectively needs 1 HTTP process per 1 concurrently connected client. For example, if [StartServers 5] is set in httpd.conf, Apache starts with 6 HTTPD processes (5 childs + 1 parent). If there were 20 concurrently connected clients, then there would be 21 HTTPD processes. Firstly, is this correct understanding? If so, my next question is thus: What constitutes a "concurrently connected client"? At a moment in time, if I run the following netstat command on a Solaris machine: netstat -P tcp -n | grep ".80 " | grep -v TIME_WAIT | wc -l I get '45', which is constituted as follows, with the following TCP statuses: 23 x ESTABLISHED 1 x FIN_WAIT_1 20 x FIN_WAIT_2 1 x LAST_ACK -- 45 However, if I count the number of HTTPD processes at this same point in time per '/usr/ucb/ps -auxww | grep httpd | wc -l', I get '35'. Therefore, either my first premise above is wrong...or I am not measuring the number of 'concurrently connected clients' accurately. Any enlightenment will be appreciated. Cheers, Craig ************************************************************************ The information in this email together with any attachments is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. Any form of review, disclosure, modification, distribution and/or publication of this email message is prohibited, unless as a necessary part of Departmental business. If you have received this message in error, you are asked to inform the sender as quickly as possible and delete this message and any copies of this message from your computer and/or your computer system network. ************************************************************************ --------------------------------------------------------------------- The official User-To-User support forum of the Apache HTTP Server Project. See <URL:http://httpd.apache.org/userslist.html> for more info. To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx
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