Perl & mod_fcgid- how can I make sure it's running & being taken advantage of?
October 14, 2008 1:13 PM Subscribe
I have a couple Perl scripts I'm publishing soon, and I want to make sure they'll run under mod_fcgid in order to keep the server load as low as possible. Previously, I've only ever run scripts that test FastCGI (ie, while ( my $q = new CGI::Fast ) { $count++; echo $count;}) or taken advantage of larger Perl packages (like MovableType) that claim to run as FCGI as long as you set up Apache & FastCGI/mod_fcgid properly and change the file suffix to ".fcgi".
So, here's my question: do I need to do anything besides change the file suffix of my scripts, and if so, what?
You'll want to be careful of that class of bugs which tend to expose themselves under persistence. For example, the thing where a hash has a single iterator that gets bumped every time you use each...
posted by brennen at 1:19 PM on October 30, 2008
posted by brennen at 1:19 PM on October 30, 2008
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LoadModule fcgid_module modules/mod_fcgid.so
# Use FastCGI to process .fcg .fcgi & .fpl scripts
# Don't do this if mod_fastcgi is present, as it will try to do the same thing
AddHandler fcgid-script fcg fcgi fpl
# Sane place to put sockets
SocketPath run/mod_fcgid
IdleTimeout 3600
ProcessLifeTime 7200
MaxProcessCount 50
DefaultMinClassProcessCount -1
DefaultMaxClassProcessCount 5
IPCConnectTimeout 8
IPCCommTimeout 600
A script that is running properly as a fastcgi script will remain persistant in memory and will be included in the output from `ps -fax`:
[...]
15883 ? S 0:00 \_ /usr/sbin/httpd -k start
15925 ? S 0:07 | \_ /usr/bin/perl -w /path/to/your/script.fcgi
[...]
posted by quinncom at 5:01 PM on October 14, 2008