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divagater
Cacti User
Joined: 17 Nov 2004
Posts: 101
Location: Chapel Hill, NC.
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 Posted: Wed Apr 23, 2008 7:16 pm Post subject: |
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| amaena wrote: | Is there any additional documentation available for setting up the performance graphs for nagios services in cacti using npc?
I followed the steps from page 8 of the forum by clicking on services, and then service detail and map graph, however the only graphs available are localhost ones and I am wondering what needs to be done from the cacti side.
I see the option on create new host for mapping a hostname to a nagios hostname but would like a bit more guidance. Perhaps something like setting up a performance graph for using the ping results from nagios?
Thanks ! |
Hi amaena. I realise the documentation is slim and I will try to clear this up for you. 1st, your post touches on 2 different pieces of NPC. What you are asking is how to create a graph from the performance data returned by a nagios check plugin. The 'Map Graph' button that you refer to is used to map/link an exisitng Cacti graph to a Nagios host or service.
NPC does not automate the whole process of creating graphs from performance data. Instead it does just the 1st step for you which is creating a data input method. The data input method that gets created will be based on the performance data being returned by Nagios and calls the script plugins/npc/perfdata.php to poll the perfdata from the database.
To create the data input method open up the service detail by double clicking a service from the services list. If the service has performance data available you will see a 'Data Input Method' button on the top toolbar of the 'Service State Information' tab (see screenshot). If there is not any performance data then you won't see the button.
Click the 'Data Input Method' button and confirm. The data input method will be named 'NPC - Perfdata - <host>: <service>'. See the second screenshot.
Now you need to manually create a data template using the data input method you just created followed by a graph template etc. as normal. Once you have a graph you can go back to the appropriate service and use the map graph button to map the graph you created to the service it belongs too.
Hope this helps,
Billy
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| A data input method created by NPC |
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Heiko
Joined: 23 Apr 2008
Posts: 25
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| Posted: Thu Apr 24, 2008 9:41 am Post subject: |
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| divagater wrote: | | Heiko wrote: | | How can i get npc to show up in cacti? |
Heiko, you need to have plugin architecture 2.0 or higher. 2.1 is the latest. After the plugin architecture is installed go to Console -> User Management. Select your admin user and check 'Plugin Management'. This will enable plugin management for that user.
Then follow the steps in the quickstart guide for installing NPC.
~Billy |
Hello,
i have the latest package installed, could this be some bad permissions?
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marsiou
Joined: 14 Apr 2008
Posts: 7
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| Posted: Thu Apr 24, 2008 10:05 am Post subject: |
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hello, i am on fedora,
I install nagios 3.0.1, cacti 0.87b, Ndoutils, Plugin Architecture 2.1.
I can't see NPC in my browser.
I follow the documentation : http://trac2.assembla.com/npc/wiki/QuickStartGuide
I can see "Plugin Management" and when i went to "user management" to active it, i didn't find....
How i can solve this problem ?
Thanks
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divagater
Cacti User
Joined: 17 Nov 2004
Posts: 101
Location: Chapel Hill, NC.
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| Posted: Thu Apr 24, 2008 10:48 am Post subject: |
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| marsiou wrote: |
I can see "Plugin Management" and when i went to "user management" to active it, i didn't find.... |
If you can see "Plugin Management" then click it. On the plugin management screen click the 'Uninstalled' tab. You should see NPC listed with various other attributes as well as some links to install, uninstall, enable etc. You need to click the 'Install' link to install NPC.
If you do not see NPC listed then is the latest version of NPC in the plugins directory? Do you have the same plugin under the plugins directory but with different name like:
| Code: |
someplugin
someplugin-01 |
This will break the plugin manager. A plugin can only be in the plugins directory 1 time.
~Billy
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marsiou
Joined: 14 Apr 2008
Posts: 7
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| Posted: Thu Apr 24, 2008 10:50 am Post subject: |
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I found , I forgot to update the database cacti with the pa.sql.
Thanks you
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Heiko
Joined: 23 Apr 2008
Posts: 25
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| Posted: Thu Apr 24, 2008 11:19 am Post subject: |
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| marsiou wrote: | I found , I forgot to update the database cacti with the pa.sql.
Thanks you |
ahh, that hurts.
now i have a npc tab.
But it doesnt say anything about that in this doc http://cactiusers.org/wiki/PluginArchitectureInstall
And i used the zip files which unpack some stuff in the pwd, which i miss to look at.
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ralf.kirmis
Joined: 03 Sep 2007
Posts: 1
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| Posted: Tue Apr 29, 2008 8:05 am Post subject: |
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Hi,
is it possible to change the table names to say ndo_* instead of
npc_* ?
I've running an ndo installation with the nagvis addon and don't
like to change the complete database layout.
thx,
Ralf
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chrisgapske
Cacti User
Joined: 22 May 2007
Posts: 266
Location: Padacuh, Ky-Alpena, MI-Gulf Shores,AL
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| Posted: Tue Apr 29, 2008 8:08 am Post subject: |
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| you might be able to link the table .. but I would not think changing the table name would be easy you would have to maintain any updates.
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divagater
Cacti User
Joined: 17 Nov 2004
Posts: 101
Location: Chapel Hill, NC.
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| Posted: Tue Apr 29, 2008 9:51 am Post subject: |
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| ralf.kirmis wrote: | Hi,
is it possible to change the table names to say ndo_* instead of
npc_* ?
I've running an ndo installation with the nagvis addon and don't
like to change the complete database layout.
thx,
Ralf |
Changing the table names would be complicated. A better approach for you would be to setup another instance of ndo. A new ndomod.cfg like ndomod_npc.cfg and ndo2db_npc.cfg. Add another broker entry to your nagios.cfg and fire up another instance of the ndo2db daemon pointing to the new config. Now all your databases get populated and no code changes needed.
Even with a large nagios install the resources used to populate these databases should be small.
~Billy
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gimpel
Joined: 08 Apr 2008
Posts: 5
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| Posted: Tue Apr 29, 2008 10:03 am Post subject: |
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Hrm, got a bit time to play with graphs again.
I seem to have trouble with parsing the output of perfdata.php or similar..
What I did was
2) select some service (load average in this case) and create the data input method using NPC
7) added that to the tree
Now, in the logs I get
| Quote: | 04/29/2008 04:50:02 PM - CMDPHP: Poller[0] Host[2] DS[8] WARNING: Result from CMD not valid. Partial Result: load1:0.690 load5:0
04/29/2008 04:50:03 PM - SYSTEM STATS: Time:1.1767 Method:cmd.php Processes:1 Threads:N/A Hosts:3 HostsPerProcess:3 DataSources:6 RRDsProcessed:6 |
Executing the script behind the data input method manually:
| Code: | # php plugins/npc/perfdata.php --type=service --id=84
load1:0.500 load5:0.690 load15:0.710 |
..and the graph is empty of course.
Bug? Or error on my side?
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gimpel
Joined: 08 Apr 2008
Posts: 5
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| Posted: Mon May 05, 2008 10:08 am Post subject: |
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Got it!
The perfdata.php spit out one space too much after the values.
So I edited it from line 65 to look like:
| Code: | $output .= preg_replace("/=/", ':', $perf);
}
}
echo $output; |
Now it passes the validate_result function from functions.php, which tests if number of spaces + 1 equals the number of delimiters.
Now, in the shell it looks like:
| Code: | phmon01:/usr/share/cacti # php plugins/npc/perfdata.php --type=service --id=84
load1:0.090 load5:0.370 load15:0.440phmon01:/usr/share/cacti # |
Only one space between values, and no newline.
Additionally I edited cmd.php, there is a test if strlen > 20; then strout = 20. That sounds like plain nonsense. I made that if strlen < 20, then set it to at least 20.
From line 367 on:
| Code: | if (!validate_result($output)) {
if (strlen($output) < 20) {
$strout = 20;
} else {
$strout = strlen($output);
}
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Captain, we got graphs! Yay!
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padawan
Joined: 30 Nov 2007
Posts: 25
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| Posted: Fri May 09, 2008 3:47 am Post subject: |
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hello everyone,
I still have a problem with graph on npc
I got a list of graph but when I selected one nothing happen
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2142 Time(s) |
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homa
Joined: 14 Aug 2003
Posts: 3
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| Posted: Wed May 14, 2008 9:34 am Post subject: No maps |
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Hello !
Hi i have perhaps the same problem. I can map the graph but I can't see any map.
Thanks
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stevetuk31
Joined: 16 Jul 2007
Posts: 3
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| Posted: Wed May 21, 2008 7:10 am Post subject: This is great!! |
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Just like to say thanks.
Installation instructions are clear.
Functionality is great.
Bloody brilliant!!
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endlessocean
Joined: 22 May 2008
Posts: 1
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| Posted: Thu May 22, 2008 4:23 am Post subject: Fatal Error |
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Hi, I got a problem here, i can see the npc tab.
but when i click it, a fata error showed like this:
Fatal error: Class 'BaseNpcFlappinghistory' not found in /usr/share/cacti/plugins/npc/models/NpcFlappinghistory.php on line 6
any idea about this?
thanks a lot.
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