Passing parameters to perl scripts

[dpearcePNG]

I'm trying to get a data template working so it will passing the host's IP address to a perl script.

Here is the input_string from the data template:

Code: Select all

<input_string>c:/perl/bin/wperl.exe c:/inetpub/wwwroot/cacti/scripts/netscreen_stats.pl <management_ip></input_string>

I've tried <management_ip> and <ip> and neither seems to get evaluated into the IP address.

management_ip is defined in the <fields> section:

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			<hash_070000645a30ad4b36e40977e118cab0b8b8ce>
				<name>ip address</name>
				<update_rra></update_rra>
				<regexp_match></regexp_match>
				<allow_nulls></allow_nulls>
				<type_code></type_code>
				<input_output>in</input_output>
				<data_name>management_ip</data_name>
			</hash_070000645a30ad4b36e40977e118cab0b8b8ce>

This is 0.8.6i on a Windows box.

Any ideas on what I am doing wrong? If I hardcode the IP address inside the perl script, it does work.

Thanks.

[gandalf]

Please follow my Tutorials
Reinhard

[dpearcePNG]

I have once already, but I'm stuck. I'll look again.

Dave
An old hand at MRTG
A noob at Cacti

[dpearcePNG]

My installation being a brand new one, I don't have the experience of seeing what is "normal".

When I am looking at the View Poller Cache page, under the data sources and "Script", I see my perl script being called. Should I also see the command line parameters listed after the script?

Dave

[dpearcePNG]

When I am looking at the View Poller Cache page, under the data sources and "Script", I see my perl script being called. Should I also see the command line parameters listed after the script?

I've determined that I should be seeing the command line parameters in the cache.

I have <hostname> defined on the Data Input Methods page and have rebuilt the Poller cache with no change.

I've gone through want I think is the pertinant document and tutorials and not made any progress. Can someone at least give me a hint?

Thanks.

[TheWitness]

<hostname>

It's a special case of an input parameter type.

[dpearcePNG]

Well, I guess I'm the most dense person around.

I created an "Advanced Ping" Data input which uses the <hostname> tag and it works fine. I've compared the data templates between it and mine and see no problems.

I guess I need more than a hint. I deleted and recreated evertyhing and I'm getting nowhere.

Sorry to be such a pain, but no matter what Special Type Codes I put in, it doesn't show up in the poller cache. If I put something that isn't a tag in the Input String, it shows up in the poller cache. It's like it's rejecting all of the tags I use.

Thanks for you help.

[gandalf]

Please post a screenshot of yor Data Input Method
Reinhard

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Thanks! The complete input string is:

perl <path_cacti>/scripts/netscreen_stats.pl <ip>

From the poller cache:

Netscreen - Netscreen Stats
Script: perl c:/Inetpub/wwwroot/cacti/scripts/netscreen_stats.pl
RRD: c:\Inetpub\wwwroot\cacti\rra\netscreen_cpu1_113.rrd

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At one point, I modified the input string to be:

perl <path_cacti>/scripts/netscreen_stats.pl 1 <ip> 2

And the poller chache showed:

Script: perl c:/Inetpub/wwwroot/cacti/scripts/netscreen_stats.pl 1 2

Thanks again.

[TheWitness]

Change it from "<ip>" to "<hostname>" and see what becomes of it. Oh, and after each change of a Data Input method, you MUST repopulate your poller cache. I little subtlety that not to many people understand right way.

TheWitness

[dpearcePNG]

Yeah, I picked up on the poller cache refresh after a few changes.

I've tried <hostname>, <manaagement_ip> and <ip>. All produce the same thing: nothing.

[TheWitness]

Hmm, that should not happen. I am writing thiese things more and more and they always seem to work. There were a couple of import/export bugs to be corrected in the next release, but nothing that would cuase this to break.

I guess I would have to see it for myself. If you are still online, we can do a GotoMeeting....

TheWitness

[dpearcePNG]

I'm sort of online. I live in Papua New Guinea (just above Australia) connectted to the internet via a VSAT connection. It's OK for chat, web and email, but the pits for anything fancy. It's way better than what we had last year though.

I agree with your "I need to see it" comment though. It's so freaky to have one data templete interpret the tags and another data templete not.

I've blown away all of the settings in the template but never started from scratch. I guess I'll do this next. At least with Cacti, swapping out the data template is realitivly easy.

News to come...

[TheWitness]

You could always export it and attach it here.

TheWitness