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I enabled debug logging on the snmp_exporter service. It appears that the snmp_exporter is in fact working, but it fails at a certain point. Here is the relevent content of the debub log info (note that IP addresses and community string have been masked in the output). I am not sending the entire log data as there is quite a lot, but below is what seems to be to be some working parts, and up to where it fails. |
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Looking at the MIB, it looks like |
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don't think we can exclude part of the tree while walking (basically we can with filters, but that won't help here9 - looking at the mib, this should do in the generator.yml: |
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My offline environment has Prometheus v3.0.0 and snmp_exporter 0.26.0 running.
I have an Isilon NAS that I would like to monitor. The Isilon admin interface lets me download the MIB file directly from the NAS. I have copied that MIB file to my staging computer (has internet), and have generated a new snmp.yml file. Specifically, I followed an example found here
In my generator.yml file at the top, I added an auth that has the community name that is configured on the Isilon. I use the same syntax as the public_v2, but I call it isilon_v2 and specify the community name.
And at the very bottom, I added this:
The isilon mib file is copied to the mibs folder. Then I generated the new snmp.yml file, and from what I can see, it all looks good.
If I use the SNMP exporter web page (port 9116 of my Prometheus server), and I use the FQDN of my Isilon, auth is isilon_v2, and stick with the default if_mib, I get the standard generic outputs.
If I do the same, but use the module
isilon, it thinks for a bit and comes back with:From the shell of the Prometheus server, I can do snmpwalk, snmpbulkwalk, snmpbulkget without errors, and it returns a lot of data.
I have also added a job to my Prometheus server to try to grab the metrics. This job returns a 500 error on the Prometheus web page (Target Health).
Error scraping target: server returned HTTP status 500 Internal Server ErrorBecause the if_mib seems to return some info, but the isilon module fails, I am thinking there may be something that did not generate properly when generating the snmp.yml. I just don't know enough about MIBs to say what that might be, but the syntax compared to other modules does look correct.
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