Thanks ascs. This is a good explanation. The only other question that partially remains unanswered is that if I run apacheN on port 80 (and access my site as http://mysite.com) and run apacheN+1 on port 8080 (and access site as http://mysecondsite.com:8080) - what can i do special to access http://mysecondsite.com:8080 without the port number (as if it was running on port 80). Did you get what I was trying to say? Is this a legtimate question? :)
On Jan 18, 2008 11:13 PM, Axel-Stephane SMORGRAV < [EMAIL PROTECTED]> wrote: > You can have as many instances of Apache as you wish on a Unix box. On > Windows, I do not know but I suppose you can. Just like two Vhosts, two > servers cannot bind the same IP/port combo. > > What I do is that I make a server root for each instance of Apache. In > that server root I create the directories bin, conf, cgi-bin and htdocs. I > create a log directory on another disk partition. > > In the bin directory you need a copy of apachectl which will somehow start > httpd pointing to the right configuration file. You may for example > hard-code the paths to log directory, conf directory etc. In my case I > modified apachectl so that it automatically figures out where to get the > config file from based on the directory in which the script is located. > > By typing "/servers/apacheN/bin/apachectl start", I start instance N. My > apachectl script determines the script path, does 'dirname' to find the name > of the parent directory which is the server root. A 'filename' on the server > root will yield the instance name which can be appended to the log root path > /logs to obtain /logs/apacheN. > > Instance configurations: > > /servers > |----->apacheN > | |-----> bin (contains only apachectl and an envvars > file with LD_LIBRARY_PATH and some other environment vars) > | |-----> conf > | |-----> htdocs (the document root of this instance) > | |-----> cgi-bin > | > |----->apacheN+1 > |-----> bin > |-----> conf > |-----> htdocs > |-----> cgi-bin > > Log files: > /logs > |----->apacheN > |----->apacheN+1 > > > Apache distribution: > /opt/apache2 > |-----> bin > |-----> lib > |-----> modules > |-----> include > |-----> manual > |-----> icons > > Hope this helps > > -ascs > > -----Message d'origine----- > De : Krist van Besien [mailto:[EMAIL PROTECTED] > Envoyé : vendredi 18 janvier 2008 15:49 > À : users@httpd.apache.org > Objet : Re: [EMAIL PROTECTED] Multiple Instances of Apache > > On Jan 18, 2008 3:22 PM, Mandy Singh <[EMAIL PROTECTED]> wrote: > > Hi Everyone, > > > > I would like to know the experts thoughts on having multiple instances > > of apache on the same box. > > > > Suppose I run an app off an instance of apache, then using VHosts add > > 2-3 diff mini sites to it. > > > > If due to some reason one of the app causes apache to get hung, all my > > apps become inaccessible. > > > > In such a scenario, since app 3 is extremely important is it > > adivisable to have another instance of apache running off the same box > > and serving app3 so that is away from my main app (that sometimes causes > problems)? > > You can have multiple apaches on one box. They will all have to be bound > to a different port however. > What you could do is have for example a main apache on port 80, and three > separate apaches for each app on eg. ports 8080, 8081, and 8082. > In you main apache you then proxy requests for the three different apps to > the correct server. > This gives you a couple of things: > - Each app runs in its own space. > - Each app can run under a different user. > - With port nrs > 1024 a non root user can start - stop the server. > > Krist > > -- > [EMAIL PROTECTED] > [EMAIL PROTECTED] > Bremgarten b. Bern, Switzerland > -- > A: It reverses the normal flow of conversation. > Q: What's wrong with top-posting? > A: Top-posting. > Q: What's the biggest scourge on plain text email discussions? > > --------------------------------------------------------------------- > 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: [EMAIL PROTECTED] > " from the digest: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > > --------------------------------------------------------------------- > 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: [EMAIL PROTECTED] > " from the digest: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > >
