Re: Running a service as External Server
Fabrizio Pacini <[email protected]>
| Newsgroups | gmane.comp.web.fastcgi.devel |
|---|---|
| Message-ID | <[email protected]> |
Ken Gustafson wrote: >Fabrizio, > >On 12/13/05, Fabrizio Pacini <[email protected]> wrote: > > >>Hi all, >>I'm running successfully my application as a fastcgi (dynamic/static) >>server >>behind an Apache 2 http server. I need to run it also as an external >>server and >>I have the following questions: >> >>1. do I have to modify my application to run it as a fastcgi external >>server? >>2. how do I tell my application on which port/socket it has to listen when >> running as an external fastcgi external server? >> >> > >As David replied, you pass the port option. Without checking my >notes, I believe it's something like this (on the external machine): >cgi-fcgi -start -connect :port# path/to/appname >(Search for '-connect' in mail archive also for info on setting up >Apache's config file properly.) > > ok, this is the point I was missing: I cannot start my application as it is; I need to start it using cgi-fcgi to have it listening on a certain socket/port. Thanks ! > > >>3. can I place several instances of my application on multiple external >>hosts >> and make all of them reachable from a single Apache 2 server (i.e. a >>single >> access point for user's requests that then dispatched to the external >>servers)? >>4. if answer to point 3. is yes, is there some sort of load balancing >>enforced by >> fastcgi? >> >> > >As David replied, nothing exists within fastcgi itself, so you'll have >to roll your own. > so there must be one-to-one mapping between the FastcgiExternalServer lines in the Apache httpd conf file and the instances of my application running on remote hosts. I cannot even run several instances of my application on a single externa machine listening on the same port, am I right? >I've used a (very) crude, round-robin, scheme: >Each external server (machine) is given a number (say 0-2). >A small (dynamic or static) modulo counter runs on the Apache machine. >As my 'user data input' page loads, it gets the next number from the counter. >This number is inserted in the form's action tag (via SSI), which will >rotate requests between the different machines. Each "#.fcgi" app >needs to be added to Apache's config file. HTH. > > my case is a bit more complicated as my application is a web service listening for soap messages, so I'm afraid I cannot use SSI. I'll have to find another way to rotate rerquests between different machines. Cheers, -- Fabrizio -- > > >>Thanks in advance, >> >>-- Fabrizio -- >> >>......................................................................................................... >>Fabrizio Pacini >> >>Project Leader >>Grid R&D Group >>Government and Institutions Division >> >>DATAMAT S.p.A. >>Via Laurentina, 760 I 00143 Rome Italy >>http://www.datamat.it >>mailto: [email protected] >>Phone: +39 06 5027 4573 (direct) >> +39 06 5027 4571 (secretary) >>Fax: +39 06 5027 2500 >> >> >>___________________________________ >>fastcgi-developers mailing list >>http://fastcgi.com/fastcgi-developers/ >> >> >> > > > > -- ......................................................................................................... Fabrizio Pacini Project Leader Grid R&D Group Government and Institutions Division DATAMAT S.p.A. Via Laurentina, 760 I 00143 Rome Italy http://www.datamat.it mailto: [email protected] Phone: +39 06 5027 4573 (direct) +39 06 5027 4571 (secretary) Fax: +39 06 5027 2500 ___________________________________ fastcgi-developers mailing list http://fastcgi.com/fastcgi-developers/