I have CMON 1.1.36 monitoring a 3-DC, 9-node Galera cluster - everything appears to be working with the exception of the iostat output under the MySQL Servers display. "Overview" and "top" work - but not iostat.
Controller cnf file has "monitored_mountpoints" set to /dev/vda2.
I added this parameter to one of the agent cnf files, same as above, but no luck in getting iostat to display for that host in CMON.
Checked the cmon.disk_stats and cmon.diskdata tables - they are empty.
Do I have something misconfigured? Or is there a missing event / process which needs to be running IOSTAT?
Many thanks in advance.
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