Periodic random script failures - Need pointers

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Hi,
I need help in figuring out why my mod perl registry script fails
randomly/periodicall on 'https'.
I am using modperl2 on ubuntu-dapper (libapache2-mod-perl2
2.0.2-2.3ubuntu1).

The registry script is used to login over https. The script
periodically/randomly gives internal error because in the following code
snippet $r is coming as undefined. This happens randomly but periodically.
Any pointers/insights to troubleshoot this would be greatly appreciated.


my $r = Apache2::RequestUtil->request;
my $host = $r->hostname || $r->server->server_hostname;
*<===========
This fails randomly because $r is undefined.*

I am using mod-ssl
Thanks,

Manoj.

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------=_Part_3898_14485623.1204523938728
Content-Type: text/html; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

Hi,
I need help in figuring out why my mod perl registry script fails randomly/periodicall on 'https'.
I am using modperl2 on ubuntu-dapper (libapache2-mod-perl2             2.0.2-2.3ubuntu1).

The registry script is used to login over https. The script periodically/randomly gives internal error because in the following code snippet $r is coming as undefined. This happens randomly but periodically.

Any pointers/insights to troubleshoot this would be greatly appreciated.


    my $r = Apache2::RequestUtil->request;
    my $host = $r->hostname        || $r->server->server_hostname; <=========== This fails randomly because $r is undefined.


I am using mod-ssl 
Thanks,

Manoj.

--
Tired of reading blogs? Listen to  your favorite blogs at   !!!!


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Re: Periodic random script failures - Need pointers

Manoj Bist wrote:
> Hi,
> I need help in figuring out why my mod perl registry script fails
> randomly/periodicall on 'https'.
> I am using modperl2 on ubuntu-dapper (libapache2-mod-perl2
> 2.0.2-2.3ubuntu1).
>
> The registry script is used to login over https. The script
> periodically/randomly gives internal error because in the following code
> snippet $r is coming as undefined. This happens randomly but periodically.
> Any pointers/insights to troubleshoot this would be greatly appreciated.
>
>
> my $r = Apache2::RequestUtil->request;
> my $host = $r->hostname || $r->server->server_hostname;
> *<===========
> This fails randomly because $r is undefined.*
>


Hi. Don't take this as an expert response, but very superficially, I
can think of one kind of circumstance where "this happens randomly but
periodically" : if it would happen, for instance, at the first execution
of the script by a "new" apache child, freshly started. Then as this
same child re-executes the script multiple times, $r would always be
defined, until that child dies and a new child initialises and executes
the script for the first time, etc..
Of course there must be another underlying reason why $r is undefined,
but maybe the above can help thinking about it.

Re: Periodic random script failures - Need pointers

André Warnier wrote:
>
> Hi. Don't take this as an expert response, but very superficially, I
> can think of one kind of circumstance where "this happens randomly but
> periodically" : if it would happen, for instance, at the first execution
> of the script by a "new" apache child, freshly started. Then as this
> same child re-executes the script multiple times, $r would always be
> defined, until that child dies and a new child initialises and executes
> the script for the first time, etc..
> Of course there must be another underlying reason why $r is undefined,
> but maybe the above can help thinking about it.

Actually, there are (at least) 2 old threads with similar intermittent
failures related to not getting $r objects correctly.

http://marc.info/?l=apache-modperl&m=117816111524789&w=2

http://marc.info/?l=apache-modperl&m=114226565622372&w=2

I personally haven't seen this sort of thing under mp2 though, just mp1,
and don't really have any real solution for it.

Adam