I have set up ndomod just like the docs state. I have had this working many times in the past. What I am seeing now looks like all should be working.
 Event broker module '/usr/local/nagios/bin/ndomod.o' initialized successfully.
 Finished daemonizing... (New PID=24079)
 ndomod: Successfully connected to data sink. 577 queued items to flush.
 ndomod: Successfully flushed 577 queued items to data sink.
However, no data in the mysql tables ever gets written.