Suddenly: Poller Output Table not Empty

[jmroth]

Hey,

I have one graph that stopped updating its RRD file on Thursday at 10 AM :-\

Since then I'm getting

WARNING: Poller Output Table not Empty. Issues: 2, DS[...] Graphs[...]

It's a port of a network switch. We have other switches configured exactly like it, even with a longer uptime, no issues.

Not sure what changed around that time.

I've tried putting the poller in debug mode, it reveals nothing, except for said error message.

I've checked the RRD file, permissions are OK. The disk is not full....

Poller (cmd.php) is running for about 100 seconds. Set at 300 second intervals.

How do I effectively troubleshoot this??? From SNMP ... to ... RRD insertion?

Thx.

(Cacti 1.2.18 on SLES12-5, PHP 7.4, MariaDB 10.2, rrdtool 1.4, net-snmp 5.7)