Perl + mod_perl
2016/01/27 |
Install mod_perl to make Perl scripts be fast.
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[1] | Install mod_perl. |
root@www:~# apt-get -y install libapache2-mod-perl2
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[2] | Configure PerlRun mode which always put Perl interpreter on RAM. |
root@www:~#
vi /etc/apache2/conf-available/mod_perl.conf # create new # for example, set PerlRun mode under the "/var/www/perl" PerlSwitches -w PerlSwitches -T Alias /perl /var/www/perl <Directory /var/www/perl> AddHandler perl-script .cgi .pl PerlResponseHandler ModPerl::PerlRun PerlOptions +ParseHeaders Options +ExecCGI </Directory> <Location /perl-status> SetHandler perl-script PerlResponseHandler Apache2::Status Require ip 127.0.0.1 10.0.0.0/24 </Location> a2enconf mod_perl Enabling conf mod_perl. To activate the new configuration, you need to run: service apache2 reloadroot@www:~# /etc/init.d/apache2 restart * Restarting web server apache2 ...done. |
[3] | Create a test Script to make sure the settings are no ploblem. It's OK if the result like follows is displayed. |
#!/usr/bin/perl use strict; use warnings; print "Content-type: text/html\n\n"; print "<html>\n<body>\n"; print "<div style=\"width:100%; font-size:40px; font-weight:bold; text-align:center;\">"; my $a = 0; &number(); print "</div>\n</body>\n</html>"; sub number { $a++; print "number \$a = $a"; } chmod 705 /var/www/perl/test-mod_perl.cgi |
[4] | Configure Registry mode which has caches of codes on RAM. |
root@www:~#
vi /etc/apache2/conf-enabled/mod_perl.conf Alias /perl /var/www/perl <Directory /var/www/perl> AddHandler perl-script .cgi .pl # uncomment it and add the line like follows #PerlResponseHandler ModPerl::PerlRun PerlResponseHandler ModPerl::Registry PerlOptions +ParseHeaders Options +ExecCGI </Directory>root@www:~# /etc/init.d/apache2 restart * Restarting web server apache2 ...done. |
[5] | Access to the test script which is an example of [4] section, then variable increases by reloading because variable is cached on RAM. So it's necessarry to edit the code for Registry mode. |
root@www:~#
vi /var/www/perl/test-mod_perl.cgi #!/usr/bin/perl use strict; use warnings; print "Content-type: text/html\n\n"; print "<html>\n<body>\n"; print "<div style=\"width:100%; font-size:40px; font-weight:bold; text-align:center;\">"; my $a = 0;
&number(
$a );
print "</div>\n</body>\n</html>"; sub number { my($a) = @_; $a++; print "number \$a = $a"; } |
[6] | By the way, it's possible to see the status of mod_perl to access to "http://(hostname or IP address)/perl-status". |