ePN error

[Ciro Iriarte]

"Stanley Hopcroft" <stanleyhopcroft at gmail.com> escribió en el mensaje 
news:eb5b64480612071408u6d061e7ya847c4f5cc0a680f at mail.gmail.com...
> Dear Sir,
>
> I am writing to thank you for your letter and say,
>
> On 06/12/06, Ciro Iriarte <cyruspy at gmail.com> wrote:
>> Hi, i'm running nagios 2.5 with various perl scripts, just added
>> check_snmp_int.pl (http://www.manubulon.com/nagios/snmp_int.html) to the
>> mix, but i'm getting some ePN error when it gives CRITICAL status (it 
>> could
>> be a coincidence)
>>
>> Output:
>> Serial2:DOWN: 1 int NOK : CRITICAL**ePN
>> /usr/lib/nagios/plugins/check_snmp_int.pl: "Use of uninitialized value in
>> join or string at /usr/sbin/p1.pl line 72,".
>>
>> According to the output, it's the TIEHANDLE sub
>>
>> 70: sub TIEHANDLE {
>> 71:        my ($class) = @_;
>> 72:        my $me = '';
>> 73:        bless \$me, $class;
>> 74:}
>>
>> Is this a problem with ePN (what i think, because of the output) or with 
>> the
>> script?
>
> If it is ePN, it certainly isn't in the TIEHANDLE sub (which only runs 
> when
> ePN loads - once when Nagios starts).
>
> It's unimpressive that the error is so poorly reported.
>
> The problem is almost certainly with plugin. What I think is happening
> is that what the plugin writes (to STDOUT) when it reports a CRITICAL,
> contains some undefined values (when the plugin calls print, the tied
> file handle results in the p1.pl PRINT sub being called. All PRINT
> does is concatenate all the args into a string and append it to the
> tied object).
>
> (here's a demo
>
> [sh1517 at acisf011 standardise_router_configs]$ cat x
> #!/usr/bin/perl -w
>
> use strict ;
>
> my @x = (undef, 1, undef, 2) ;
>
> print join(" ", @x), "\n" ;
> [sh1517 at acisf011 standardise_router_configs]$ perl x
> Use of uninitialized value in join or string at x line 7.
> Use of uninitialized value in join or string at x line 7.
> 1  2
> [sh1517 at acisf011 standardise_router_configs]$
> )
>
> If you can simulate or reproduce the event that causes the problem,
> try to inspect the values of the variables that the plugin outputs
> before it exits with the CRITICAL.
> You should see the problem - but it will be reported differently -
> with or without ePN.
>
> ePN could and maybe should be modified to not die when print is called
> with undef elements. On the other hand, Perl with strict always
> complains and since ePN alwats runs with strict, you see the
> complaints (assuming that is really the cause of the problem).
>
> HTH,
>
> Yours sincerely.
>

Thanks a lot for you answer, i'll send more details to debug the plugin.

Ciro 




-------------- next part --------------
-------------------------------------------------------------------------
Take Surveys. Earn Cash. Influence the Future of IT
Join SourceForge.net's Techsay panel and you'll get the chance to share your
opinions on IT & business topics through brief surveys - and earn cash
http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV
-------------- next part --------------
_______________________________________________
Nagios-users mailing list
Nagios-users at lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/nagios-users
::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. 
::: Messages without supporting info will risk being sent to /dev/null