The answer to the question was: yes, after your question, in a dedicated fhrase/paragraph. I expected you wanted to know if the perl script is loaded at startup and then run from memory (precompiled form) at runtime -- sparing another email to ask what you really mean by "constantly run in background", which has different meaning in my understanding, but has no relation with the purpose of Kamailio and its app_perl module.

The following remark (on separate paragraph) was an addition to say that, if you need to refresh the the loaded perl script in memory, can be done periodically if using upcoming 4.2. I added it, not strictly for reloading the script in memory, but apparently perl was not designed for long recursive running of scripts (or maybe developers of some libs didn't have that in mind), resulting in system memory leak after long interval of runing (reported by others, as I am not really using app_perl).

On 15/09/14 18:44, Vik Killa wrote:

Interesting but could you elaborate on how that will answer my question?
On Mon, Sep 15, 2014 at 11:44 AM, Daniel-Constantin Mierla <miconda@gmail.com> wrote:
Hello,

On 15/09/14 17:03, Vik Killa wrote:

hello, does kamailio start/run the perl script defined by modparam("app_perl", "filename", "/usr/local/test/bin/sips.pl") at startup and constantly run in background?

yes.

The upcoming 4.2 has the option to reload the script (and reset the perl interpreter) periodically.

Cheers,
Daniel
I want a persistent database connection rather than having to constantly re-connect to database on each transaction.
Is this possible?

I'm connecting to postgres with

use DBI;
my $dsn = "DBI:Pg:database=$database;host=$host;port=$port";
my $dbh = DBI->connect($dsn, $user, $pass) || die "Could not connect to database: $DBI::errstr";
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-- Daniel-Constantin Mierla http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda Next Kamailio Advanced Trainings 2014 - http://www.asipto.com Sep 22-25, Berlin, Germany
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-- 
Daniel-Constantin Mierla
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Next Kamailio Advanced Trainings 2014 - http://www.asipto.com
Sep 22-25, Berlin, Germany