SNMP and OIDs

Post by **TheWitness** » Mon May 15, 2006 6:44 am

It should be in the location where the binary resides. You should run as root from that directory. So, follow these instructions:

open a shell
cd to cactid binary
su
./cactid
ls *stack*

TheWitness

Grogman · Post by **Grogman** » Mon May 15, 2006 9:04 am

Hi,

I've followed your instructions, but I can't find any stack file.

Maybe I'm messing up things. The stack file should be obtained from my actual cactid which gets wrong values from some oid's, or from the compiled one showing a segmentation error?

Thanks!

Post by **TheWitness** » Mon May 15, 2006 6:39 pm

The segmentation error is of interest.

Grogman · Post by **Grogman** » Tue May 16, 2006 2:16 am

Grogman · Post by **Grogman** » Tue May 16, 2006 2:17 am

Hi!

I've attached the output of the compiled svn source when I run it from the CLI.

It looks like it crashes after polling the first device. However, I cannot find any *stack* file in the binary directory

Probably I'll be missing something...

Thanks !!!

Post by **TheWitness** » Tue May 16, 2006 5:56 am

Please note the last item polled. It contains "enterprise:..." as the OID. Can you change that to numeric and any others and see if you get further?

Thanks,

TheWitness

Grogman · Post by **Grogman** » Tue May 16, 2006 6:11 am

Same result

Code: Select all

CACTID: Host[2] DS[184] SNMP: v2: 192.****0, dsname: snmp_oid, oid: .1.3.6.1.4.1.9.2.1.56.0, value: 6
CACTID: Host[2] DS[517] SNMP: v2: ****0, dsname: snmp_oid, oid: .1.3.6.1.4.1.9.2.1.8.0, value: 155713100
Segmentation fault

It seems to happen when cactid finishes polling the first host, since there are no more data sources defined in that host.

Thanks!

Post by **TheWitness** » Tue May 16, 2006 8:16 pm

What is your distribution (OS). Did you make from SVN. Sorry to ask duplicate questions, if I just did...

TheWitness

Post by **TheWitness** » Tue May 16, 2006 8:17 pm

Also, what is your version of MySQL? There is a problem with the "release" of 0.8.6f/g, if that's what you are using.

TheWitness

Grogman · Post by **Grogman** » Wed May 17, 2006 2:00 am

Hi Witness,

Asking your questions:

OS -> FC3 distro

MySQL -> Ver 11.18 Distrib 3.23.58, for redhat-linux-gnu (i386)

And yes, I compiled from the SVN, and also tried from the FC3 rpm of the repository, obtaining the same segmentation fault in both cases.

Thank you very much for your help!

Post by **TheWitness** » Wed May 17, 2006 4:31 am

This may be more related to MySQL than to Cacti. But we have never asked anyone to upgrade before. But I suspect that this is the issue.

TheWitness

Grogman · Post by **Grogman** » Wed May 17, 2006 4:50 am

Ok, I'll talk about this with my boss, and we will consider upgrading mysql. However, apart from solving the OID problem, do you think upgrading mysql and using the lastest svn version of cactid could help dealing with the gaps in the graphs matter? Which version of mysql works better with cacti/cactid?

Thanks a lot!

Post by **TheWitness** » Wed May 17, 2006 5:01 am

MySQL 4.x is best at this time. The gaps are interesting. I hate to see unstable installations. Can I ssh or rd into the box sometime. Slet that, I have to get ready for work. Maybe later.

Larry

Grogman · Post by **Grogman** » Wed May 17, 2006 5:37 am

Hi Larry,

The gaps are also very interesting in my opinion, as they appear in a variety of situations: I have three machines running cacti with gaps in two of them:

Machine 1 (cacti 0.6.8g):
----------------------------
with cmd.php -> some gaps
with cactid 0.8.6g -> lots of gaps
with cactid 0.8.6f-2 -> hosts don't respond to snmp
with cactid svn or rpm -> Segmentation fault

Machine 2 (cacti 0.8.6g):
----------------------------
with cactid 0.8.6g -> medium amount of gaps
with cactid 0.8.6f-2 -> hosts don't respond to snmp
with cactid svn or rpm -> Segmentation fault

Machine 3 (cacti 0.8.6f):
----------------------------
with cmd.php -> some gaps
with cactid 0.8.6f-2 -> no gaps (however, the problem with some oid's of the topic arises)
with cactid 0.8.6g -> hosts don't respond to snmp
with cactid svn or rpm -> Segmentation fault

All three machines are FC3 with MySQL 3.23.58. Machine 1 is the newest and the result of cloning Machine 2 after cactid/cactid installation while Machine 3 is the oldest one. Unfortunately, for security reasons, these machines cannot be accessed from outside the LAN...

I don't know if this can be of help, but maybe can give a hint of what is the gap problem related to...

Thanks a lot for your help Larry!

Post by **TheWitness** » Wed May 17, 2006 2:51 pm

They could be related to timeouts. Can you increase either the retry count or the snmp timeouts for the hosts and let me know if that fixes it.

Thanks,

Larry

SNMP and OIDs

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