It means you most likely have rewrites defined in the config:



adam.

Martin via observium wrote on 2024-02-13 19:12:

Hello,

I am experiencing something I don't understand. During polling of a host the syslocation -which is returned correctly by snmp- gets changed into another location (which is an old location before moving from "Address B" to "Address A").

$ /usr/bin/snmpget -v3 -l 'authPriv' -n '' -x 'AES' -X 'passwd' -a 'SHA' -A 'passwd' -u 'username' -Pud -Ih -OQUs --hexOutputLength=0 -m SNMPv2-MIB -M /opt/observium/mibs/rfc:/opt/observium/mibs/net-snmp 'udp':'HostName':'161' sysUpTime.0 sysLocation.0
sysUpTime.0 = 0:8:31:49.72
sysLocation.0 = "Address A"
This is the correct address returned.

A few lines lower in my debugging output I see:
    sysLocation rewritten from 'Address A' to 'Address B' by DB override.

Even if I change the address in mysql to the correct address the polling process keeps changing it to the old address.
MariaDB [observium]> select hostname, location from devices where device_id=9811;
+-------------------------+--------------+
| hostname                | location     |
+-------------------------+--------------+
| HostName                | Address B    |
+-------------------------+--------------+

My questions:
- Why is this happening?
- How can I prevent this from happening?
- Where does the old address come from?

I hope someone can shed some light on this strange issue...

Thanks,

Martin


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