No graphs and SNMP not polling

infodood · Post by **infodood** » Wed Sep 29, 2004 10:58 pm

I installed cacti with the following versions:

Win2kProSP4
cacti - 0.8.6a (upgraded from 0.8.6)
mysql - 4.0.21
PHP - 4.3.9RC3
Apache - 2.0.50
RRDTOOL - 1.0.48

My hosts all say SNMP error on the devices page and there are no graphs being generated. I can poll the hosts successfully with a MIBwalker, so they are responding. When I sniff the ethernet port of the cacti box, I don't even see anything being sent for the SNMP GET. Another symptom is no .rrd files in the rra folder...HELP!

When I do a verbose query, I get either this for interface stats:
+ Running data query [1].
+ Found type = '3' [snmp query].
+ Found data query XML file at 'C:\Apache2\htdocs\cacti/resource/snmp_queries/interface.xml'
+ XML file parsed ok.
+ Executing SNMP walk for list of indexes @ '.1.3.6.1.2.1.2.2.1.1'
+ No SNMP data returned
+ Found data query XML file at 'C:\Apache2\htdocs\cacti/resource/snmp_queries/interface.xml'
+ Found data query XML file at 'C:\Apache2\htdocs\cacti/resource/snmp_queries/interface.xml'
+ Found data query XML file at 'C:\Apache2\htdocs\cacti/resource/snmp_queries/interface.xml'

or this for CPU stats:
+ Running data query [9].
+ Found type = '6 '[script query].
+ Found data query XML file at 'C:\Apache2\htdocs\cacti/resource/script_server/host_cpu.xml'
+ XML file parsed ok.
+ Executing script for list of indexes 'c:\php\php.exe -q C:\Apache2\htdocs\cacti\scripts\ss_host_cpu.php 192.168.10.230 3b1tda2oo1 1 index'
+ Executing script query 'c:\php\php.exe -q C:\Apache2\htdocs\cacti\scripts\ss_host_cpu.php 192.168.10.230 3b1tda2oo1 1 query index'
+ Found data query XML file at 'C:\Apache2\htdocs\cacti/resource/script_server/host_cpu.xml'
+ Found data query XML file at 'C:\Apache2\htdocs\cacti/resource/script_server/host_cpu.xml'
+ Found data query XML file at 'C:\Apache2\htdocs\cacti/resource/script_server/host_cpu.xml'

Any help is greatly appreciated.

Thanks,
Chris

Post by **TheWitness** » Thu Sep 30, 2004 6:23 am

Is the php.ini file set correctly with the extension php_snmp.dll uncommented?

TheWitness

infodood · Post by **infodood** » Thu Sep 30, 2004 8:23 am

Yes, I have the stuff below uncommented.

extension_dir = c:\php\extensions
extension=php_snmp.dll
extension=php_sockets.dll

//Chris

infodood · Post by **infodood** » Thu Sep 30, 2004 9:35 am

I got the SNMP error straight. My path was wrong in the cacti settings. Now Cacti returns the router's version info at the top of the device page.

I still get this error in a graph debug:
ERROR: opening 'C:\Apache2\htdocs\cacti/rra/pix_5min_cpu_23.rrd': No such file or directory

I also still have the same messages from the verbose SNMP listed in my first post.

Let me know if any additional info will help to diagnose.

//Chris

Post by **TheWitness** » Thu Sep 30, 2004 5:27 pm

Crap. I missed this one. "My hosts all say SNMP error on the devices page and there are no graphs being generated." Download a product called "Getif" from the internet and try to poll the devices from there. It looks like you have an invalid SNMP read community.

Sorry for the confusion.

TheWitness

infodood · Post by **infodood** » Thu Sep 30, 2004 8:47 pm

The SNMP error is actually gone now. I had left the snmp paths as <default> in cacti. Now, cacti grabs the version information from the router and displays it on the device page.

I still just see a bunch of those little 'X' placeholders for the graphs. Even the button called 'graph it' in graph management>edit is a placeholder. It has always been like this. When I turn on graph debug mode, I keep getting this:

RRDTool Says:

ERROR: opening 'C:\Apache2\htdocs\cacti/rra/3640_5min_cpu_18.rrd': No such file or directory

The rra folder is there, but it's empty.

The SNMP log is still the same as I first posted with the no data returned. When I hook a sniffer up to the thing, I don't see anything come out when poller.php runs.

I did try the getif thing...it gets all of the snmp stuff and graphs fine.

Post by **TheWitness** » Thu Sep 30, 2004 9:10 pm

Ok, I am pretty confused about this one. If you are using SNMP V1 and the PHP SNMP extensions are in use, then you do NOT require the SNMPWALK and SNMPGET paths.

So, I think you may, and I repeat, may have multiple PHP.INI files. You should check your system. Then there is an environment variable called PHPRC that should be set to "c:\php" and then place your PHP.INI file there.

With respect to the "No such file or directory", you may have a permissions problem, you Web server ID may not have full permissions to the RRA folder. It will also need full permissions to the LOG directory.

Hope this helps.

TheWitness

infodood · Post by **infodood** » Thu Sep 30, 2004 9:40 pm

Thanks man, I'll try it out now.

infodood · Post by **infodood** » Thu Sep 30, 2004 10:18 pm

I tried the PHPRC variable and it didn't change anything. Based on the fact that i should not require the SNMPWALK paths...I removed them to mayhaps uncover the real problem. ...Now when I go to the devices page and select a device--- under the device name where it says SNMP information, I have 'SNMP error' in red again.

As for permissions, I have recursive full control for everyone on c:\ for testing purposes.

Any ideas?

infodood · Post by **infodood** » Thu Sep 30, 2004 10:45 pm

Sheesh man. I left everything it was in my last post...the SNMP error, the newly added PHPRC variable, the weird debugs...

I rebooted and now the interface SNMP is actualy getting data. The CPU data sources aren't working and the graphs are still dead, but I can see that it's getting data!

LMK if you have any more ideas.

infodood · Post by **infodood** » Thu Sep 30, 2004 11:11 pm

I think I figured it out. The path RRDTOOL keeps barking at is this:
'C:\Apache2\htdocs\cacti/rra/3640_traffic_in_19.rrd'

If I cd to 'C:\Apache2\htdocs\cacti/rra', winders hates it and drops me in the last valid directory in the string (or where it encounters a / where it expected a \ ). Anyways, I end up in 'C:\Apache2\htdocs\cacti'.

If I replace the /rra with a \rra, it drops me right where I need to be.

Where does rrdtool go to get the path for rra? I think that if I fix this, I may see some improvement with graphing.

infodood · Post by **infodood** » Fri Oct 01, 2004 1:27 am

Okay, I replaced my PHP.ini with a new one and I can see graphs of traffic stats. I was using PHP.ini-recommended and switched back to php.ini-dist. Some graphs kick back errors, but it is a step in the right direction.
When adding interface 95th percentile...
RRDTool Says:

ERROR: invalid rpn expression 'a,8,*'

Still can't get processor information from a cisco...is there a change I need to make to the default polling method to make this work?

BSOD2600 · Post by **BSOD2600** » Fri Oct 01, 2004 9:14 am

infodood wrote:I was using PHP.ini-recommended and switched back to php.ini-dist. Some graphs kick back errors, but it is a step in the right direction.

Heh, you must have read my post since thats the same thing I did.

infodood wrote:Still can't get processor information from a cisco...is there a change I need to make to the default polling method to make this work?

Can you properly poll the device with GetIF for the OID you're telling cacti to poll?

Guest · Post by **Guest** » Sat Oct 02, 2004 2:40 pm

Yep, it was your post, THX.

I'll check the getif thing out today. With a little playing around, now I can get processor & interface data from a router, but only interface data from a PIX.

No graphs and SNMP not polling

No graphs and SNMP not polling

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