Yes, very odd. I worked through it (I think, fingers crossed yet … ;-)). I did a few things,
- Pulled LibreNMS code from before the shift in performance. Made no difference
- Manually executed the commands that were being sent => found that snmpbulkwalk was causing the issue, so,
- Temporarily disabled bulk walk for this OK - seems to work (so far)! Odd that something triggered this (Linux change?) … as the OS on the box hasn’t changed in a VERY long time. But let’s see. If this sticks, I’ll submit a PR for it.
BTW, it would be handy in the debug output to show (in text) the actual (full) snmp command that is executed - just to make sure when manually trying things the command is exactly right. Just a thought.
And - the latest plot,