ISPConfig3 and FCGI wrapper

[Keeper]

Hello,

I noticed that ISPConfig creates .php-fcgi-starter in /var/.../php-fcgi-scripts/ispconfig/ and /var/.../php-fcgi-scripts/webx/ folders. There are values called PHP_FCGI_CHILDREN and export PHP_FCGI_CHILDREN which shouldn't be used.

These values are meant for standalone fcgi server, not for mod_fastcgi or mod_fcgid which handle process creation by themselves. When used with mod_fastcgi or mod_fcgid, these values cause problems.

See http://wherethebitsroam.com/blogs/je...hpfcgichildren

Am I correct in assuming that editing /usr/local/ispconfig/server/conf/php-fcgi-starter.master would make these changes default?
Edit: Apparently I am.

Edit 2: And apparently PHP_FCGI_MAX_REQUESTS should be set to 500 to prevent a probable race condition.
See: http://redmine.lighttpd.net/projects...ormanceFastCGI

[till]

Thanks for the info. I will take look into this.

[till]

I commented out the PHP_FCGI_MAX_REQUESTS variable in the fcgi starter script and uploaded it to svn.

[Keeper]

Actually I believe it should be PHP_FCGI_CHILDREN that should be either commented out, or set to 1. And PHP_FCGI_MAX_REQUESTS should be set to 500.

After some tinkering I noted that it is probably easier to change existing settings this way:
Go to System / Server Config / FastCGI
FastCGI Children 1
FastCGI max. Requests 500

Not sure if /php-fcgi-scripts/ispconfig/.php-fcgi-starter is used for anything, but just to be on the safe side I edited it manually afterwards. And I left the master file alone since looks like editing System / Server Config / FastCGI is better place to edit the values. Apache probably needs to be restarted to let unnecessary fcgi processes die.

[till]

You are right, I meant the PHP_FCGI_CHILDREN variable. I commented them out instead of setting it in server config as this will fix the problem also on existing systems and this setting in server config is not needed until we offer support for e.g. lighttpd.