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2016-04-06T20:08:48Z

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== Logs ==

See [[LogsConfig]].

== Apache ==

See also [[ApacheConfig]]

=== one process mode ===

This is useful only for debug, this start only one apache process and prevent concurent requests.

/usr/local/apache/bin/httpd -X

=== Perl debugger with Apache/Mod_perl ===

Install the module Apache::DB.

Put this in your apache config file:

<IfDefine PERLDB>
<Perl>
use Apache::DB ();
Apache::DB->init();
</Perl>
<Location /rt>
PerlFixupHandler Apache::DB
</Location>
</IfDefine>

You may need to change the location to your own installation. Then stop the main apache server and start apache like this:

/usr/local/apache/bin/httpd -X -DPERLDB

Now, any http request you make to RT will drop you in the debugger first.

=== <nowiki>[http://search.cpan.org/dist/DBI DBI::ProfileDumper::Apache]</nowiki> ===

Maybe not everyone knows this but if you use mod_perl and RT(2/3) then you can use this in httpd.conf:

PerlSetEnv DBI_PROFILE DBI::ProfileDumper::Apache

At each stop/start of Apache you'll get profiling data in your logs directory which you can analyse with <code>dbiprof</code>. If a mod_perl/apache process terminaties due to max accesses reached it will also dump its profile data.

For more information see dbiprof -h.

'''NOTE:''' Apache doesn't need to be in one process mode.

=== <nowiki>[http://search.cpan.org/dist/Apache-DB Apache::DProf, Apache::SmallProf]</nowiki> ===

This is useful when you're going to profile perl code.

* DProf dump profile per sub
* SmallProf dump profile per line

In httpd.conf

<nowiki><Perl>
use Apache::DB ();
Apache::DB->init;
</Perl>
# comment this line if you want SmallProf
PerlModule Apache::DProf
...
# previous block should be before other perl modules
PerlRequire ...webmux.pl
...
<Location ...>
...
PerlHandler RT::Mason
# In the same location or diretory block where
# RT::Mason configured add fixup handler
# if you want profile each line of perl code
# uncomment next line
# PerlFixupHandler Apache::SmallProf
</Location>
</nowiki>

'''NOTE:''' The server must be started with the -X to use Apache::DB

=== Other profilers ===

* [http://search.cpan.org/dist/MasonX-Profiler MasonX-Profiler]

== Email ==

=== get email content ===

You send email to RT and it fails and you think that exactly content in mail break RT. In this case you should get full MIME content of email.

* Mozilla Mail variant
** Send email that fails
** Find it in Sent folder
** Click on it
** <code>Ctrl-U</code>
** Now you should see "Source of:..." page
** Copy content. It's exactly what you need.

This content can be used to check if your mailgate works fine:

* open your alias files and copy RT alias
* run alias as shell command, don't forget to add '''debug''' option.

cat |/opt/rt3/bin/rt-mailgate --queue ... --url ... --debug

* now mailgate wait for email content on STDIN, paste content.
* press <code>Ctrl-D</code>

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