Won't create a graph for a specific interface

cwiggler · Post by **cwiggler** » Tue Sep 14, 2004 8:31 am

Hi all,

I installed the latest version of cacti and rrdtool on my debian woody, cacti is working fine until i came about this problem. I could graph some of my servers interface except for this one.

I enable the Data Query Debug Information and here is the results:

+ Running data query [1].
+ Found type = '3' [snmp query].
+ Found data query XML file at '/usr/local/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'
+ Located input field 'ifIndex' [walk]
+ Executing SNMP walk for data @ '.1.3.6.1.2.1.2.2.1.1'
+ Found item [ifIndex='1'] index: 1 [from value]
+ Found item [ifIndex='2'] index: 2 [from value]
+ Found item [ifIndex='3'] index: 3 [from value]
+ Found item [ifIndex='4'] index: 4 [from value]
+ Found item [ifIndex='5'] index: 5 [from value]
+ Located input field 'ifOperStatus' [walk]
+ Executing SNMP walk for data @ '.1.3.6.1.2.1.2.2.1.8'
+ Found item [ifOperStatus='Up'] index: 1 [from value]
+ Found item [ifOperStatus='Up'] index: 2 [from value]
+ Found item [ifOperStatus='Up'] index: 3 [from value]
+ Found item [ifOperStatus='Up'] index: 4 [from value]
+ Found item [ifOperStatus='Up'] index: 5 [from value]
+ Located input field 'ifDescr' [walk]
+ Executing SNMP walk for data @ '.1.3.6.1.2.1.2.2.1.2'
+ Found item [ifDescr='MS TCP Loopback interface'] index: 1 [from value]
+ Found item [ifDescr='DVB Modem Network Adapter\'] index: 2 [from value]
+ Found item [ifDescr='RG384B Modem Adapter'] index: 3 [from value]
+ Found item [ifDescr='Realtek RTL8139/810X Family NIC'] index: 4 [from value]
+ Found item [ifDescr='NdisWan Adapter'] index: 5 [from value]
+ Located input field 'ifName' [walk]
+ Executing SNMP walk for data @ '.1.3.6.1.2.1.31.1.1.1.1'
+ Found item [ifName=''] index: [from value]
+ Located input field 'ifAlias' [walk]
+ Executing SNMP walk for data @ '.1.3.6.1.2.1.31.1.1.1.18'
+ Found item [ifAlias=''] index: [from value]
+ Located input field 'ifType' [walk]
+ Executing SNMP walk for data @ '.1.3.6.1.2.1.2.2.1.3'
+ Found item [ifType='softwareLoopback(24)'] index: 1 [from value]
+ Found item [ifType='ethernetCsmacd(6)'] index: 2 [from value]
+ Found item [ifType='ethernetCsmacd(6)'] index: 3 [from value]
+ Found item [ifType='ethernetCsmacd(6)'] index: 4 [from value]
+ Found item [ifType='ppp(23)'] index: 5 [from value]
+ Located input field 'ifSpeed' [walk]
+ Executing SNMP walk for data @ '.1.3.6.1.2.1.2.2.1.5'
+ Found item [ifSpeed='10000000'] index: 1 [from value]
+ Found item [ifSpeed='50000000'] index: 2 [from value]
+ Found item [ifSpeed='10000000'] index: 3 [from value]
+ Found item [ifSpeed='100000000'] index: 4 [from value]
+ Found item [ifSpeed='100000'] index: 5 [from value]
+ Located input field 'ifHwAddr' [walk]
+ Executing SNMP walk for data @ '.1.3.6.1.2.1.2.2.1.6'
+ Found item [ifHwAddr=''] index: 1 [from value]
+ Found item [ifHwAddr='00:90:9C:20:18:42'] index: 2 [from value]
+ Found item [ifHwAddr='00:00:00:00:07:E7'] index: 3 [from value]
+ Found item [ifHwAddr='00:50:BF:0F:0B:D8'] index: 4 [from value]
+ Found item [ifHwAddr='00:00:00:00:00:00'] index: 5 [from value]
+ Located input field 'ifIP' [walk]
+ Executing SNMP walk for data @ '.1.3.6.1.2.1.4.20.1.2'
+ Found item [ifIP='0.0.0.0'] index: 5 [from regexp oid parse]
+ Found item [ifIP='10.10.2.3'] index: 3 [from regexp oid parse]
+ Found item [ifIP='127.0.0.1'] index: 1 [from regexp oid parse]
+ Found item [ifIP='172.28.1.1'] index: 2 [from regexp oid parse]
+ Found item [ifIP='202.126.34.61'] index: 4 [from regexp oid parse]
+ Found data query XML file at '/usr/local/apache2/htdocs/cacti/resource/snmp_queries/interface.xml'
+ Found data query XML file at '/usr/local/apache2/htdocs/cacti/resource/snmp_queries/interface.xml'
+ Found data query XML file at '/usr/local/apache2/htdocs/cacti/resource/snmp_queries/interface.xml'
----------------------------------------------------------

So when I create a graph for this host, the index 2 with an IP address of 127.28.1.1 doesnt have a Description, so select the graph type to IN/OUT Bits and create the graph, but when i check on the rra directory theres no entry for that or rrd file for that host but the cacti doesn't have an error.

Here is the image of the said host.

The other interfaces is working and i can create a graph except for the one. What should be the problem?

I wish anyone can help me. thanks and regards to everyone.

Post by **TheWitness** » Tue Sep 14, 2004 9:45 am

What error message are your receiving?

TheWitness

Guest · Post by **Guest** » Tue Sep 14, 2004 9:51 am

I got no error, except when i enable the debugging on mode, i got:
ERROR: opening '/usr/local/apache2/htdocs/cacti/rra/power_cord_traffic_in_37.rrd': No such file or directory

but other interface is okay.

Post by **TheWitness** » Tue Sep 14, 2004 10:02 am

It appears that you have a Data Source (DS) created that is invalid for one reason or another. If you delete that DS and it's associated graph and recreate, it may correct your problem.

TheWitness

Guest · Post by **Guest** » Tue Sep 14, 2004 8:39 pm

I did remove the old Data Sources and doubled check to see that I have have any datas for that host, then I add device using ucd/net snmp, the box is running on windows nt. then i select that specific interface and create and in/out bits graph but still the same. when i check it, theres no rrd file created, i also tried the other interface to graph and it works fine. MRTG can graph that interface i dunno why on rrdtool+cacti it wont. the thing that im wondering why theres no Description on that interface, is that a possible cause why it wont work?

regards

Post by **TheWitness** » Tue Sep 14, 2004 8:49 pm

raX and I have found the source of the problem. He will attempt to test and correct. This is a problem with your MIB. The backslash in Interface 2's ifDescr is the source of the error.

raX suggests that you more than likely have an *.INF file with bad information.

TheWitness

Post by **raX** » Tue Sep 14, 2004 8:58 pm

I think I have a solution to the problem. It is untested since I don't have access to your environment, but it should work. Apply the following patch in your Cacti directory:

Code: Select all

wget http://www.cacti.net/downloads/patches/0.8.6/snmp_backslash_char.patch
patch -p1 < snmp_backslash_char.patch

Or replace your lib/snmp.php file with the pre-patched version.

Refresh your data query to see if the patch did its magic.

-Ian

Guest · Post by **Guest** » Tue Sep 14, 2004 9:06 pm

Hi TheWitness,

Even in MRTG it has MRTG_INT_IP="172.28.1.1" MRTG_INT_DESCR="DVB-Modem-Network-Adapter\" on it.

so that is the cause of the problem. is there a way to fix this on my side? it seems that the remote site is far away from location.

and if ever, how can i fix the mib, what file should i need to modify?

thanks and regards.

Post by **TheWitness** » Tue Sep 14, 2004 9:24 pm

See raX's post.

cwiggler · Post by **cwiggler** » Tue Sep 14, 2004 9:44 pm

Hi Rax and TheWitness,

The patched worked now I could see that theres a Description on that interface.

I tried to remove all my graphs and data sources to make fresh. Then i add device and create a graph on every interface, the interface selection got gray color and it say that it successfully created the graph but when i looked at the rrd directory, theres no files in there, so i was thinking that maybe theres still a problem. So I add another device and get the stats of my own machine, which it was working and i had a graph on it before. then i create a graph on my interface and it successfully created based on the web, but when i looked at the rrd directory still no files created.

what should be the possible problem. it was working before and the cacti can create files on rrd directory but now it wont.

Can you help me with this. maybe this should be the last problem at after this it will work like a charm.

thanks and regards.

cwiggler · Post by **cwiggler** » Tue Sep 14, 2004 9:51 pm

Another test, I create a graph on the local machine/localhost without using snmp and i get all the graphs

but only the snmp host is not working. I checked the logs from poller.php and I get this command:

/usr/local/rrdtool/bin/rrdtool create /usr/local/apache2/htdocs/cacti/rra/glynn_traffic_in_48.rrd --step 300 DS:traffic_in:COUNTER:600:0:100000000 DS:traffic_out:COUNTER:600:0:100000000 DS:traffic_in:COUNTER:600:0:100000000 DS:traffic_out:COUNTER:600:0:100000000 RRA:AVERAGE:0.5:1:600 RRA:AVERAGE:0.5:6:700 RRA:AVERAGE:0.5:24:775 RRA:AVERAGE:0.5:288:797 RRA:MAX:0.5:1:600 RRA:MAX:0.5:6:700 RRA:MAX:0.5:24:775 RRA:MAX:0.5:288:797

I tried to run it manually on the console and I got an error:
ERROR: Duplicate DS name: traffic_in

Maybe this is the problem why it wont create the rrd file.

thanks and regards

Post by **TheWitness** » Tue Sep 14, 2004 9:54 pm

The create syntax is muffed up. Have you attempted raX's update. Also, make sure you have deleted all DS's associated with this interface before retrying.

TheWitness

cwiggler · Post by **cwiggler** » Tue Sep 14, 2004 10:00 pm

Hi TheWitness,

Yeah I have patched the snmp.php, I also deleted all the Data Sources before creating a new one. Ill try to download the file snmp.php not the patched and see if it works.

regards

Post by **TheWitness** » Tue Sep 14, 2004 10:03 pm

Hope it works. Going to bed now... Later

TheWitness

cwiggler · Post by **cwiggler** » Tue Sep 14, 2004 10:10 pm

Hi TheWitness,

I downloaded the snmp.php and tried it again but till the same error.
how can we fix this?

regards

Won't create a graph for a specific interface

Won't create a graph for a specific interface

Who is online