[mrtg] Re: problem using result from external script

[alex at ergens.op.Het.Net]

nicolas.pigeau at paribas.com wrote:

> Hi All,

> Here is my (new) problem: using an external script to get "input errors" on two
> interfaces and display them on the same graph.

> I attached the script I created at the end of this mail.
> I tested it, and it seems to me that the result are OK (I compared the result
> with an snmpget, and quite surprisingly, the result is the same...)
> But when I use it with MRTG, I get an:
>  ""  Problem with Externale get '`/opt/mrtg-2.8.9/run/my_contrib/get_errors.pl
> 20.20.20.1 public 2 20.20.20.2 public 4`':
>     Expected an INTEGER for 'out' but got ''  ""      (same problem with "in").

Sorry, no time to check the script.  However, would I receive this error 
then the first thing I would do is store the script's output in a file and
look at the byte level if it is what it should be.
In most cases you'll find a problem with whitespace.

regards,
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