You might need to change the perfmon config. Or disable perf monitoring. You don’t need the GUI to take advantange of that stuff though, AFAIK.
-- #BlackLivesMatter ____ || \\UTGERS, |---------------------------*O*--------------------------- ||_// the State | Ryan Novosielski (he/him) - [email protected] || \\ University | Sr. Technologist - 973/972.0922 (2x0922) ~*~ RBHS Campus || \\ of NJ | Office of Advanced Research Computing - MSB A555B, Newark `' On Feb 7, 2026, at 12:23, Jonathan Buzzard <[email protected]> wrote: I am trying to remove the GUI nodes from our cluster as they are no longer required. I have managed one but the other is proving to be a problem If I try and delete it I get [root@gpfs0 ~]# mmdelnode gui1 mmdelnode: Node gui1.<redacted> is being used as a performance monitoring collector node. mmdelnode: Command failed. Examine previous error messages to determine cause. OK, lets change that [root@gpfs0 ~]# mmchnode --noperfmon -N gui1 Sat 7 Feb 12:29:48 GMT 2026: mmchnode: Processing node gui1.<redacted> mmchnode: Propagating the cluster configuration data to all affected nodes. This is an asynchronous process. That looks to have worked, lets try again 15 minutes later [root@gpfs0 ~]# mmdelnode gui1 mmdelnode: Node gui1.<redacted> is being used as a performance monitoring collector node. mmdelnode: Command failed. Examine previous error messages to determine cause. Still no joy. From recollection the performance monitoring was only added as a requirement for setting up the GUI and was added to the GUI nodes. Do I have to designate another node for performance monitoring or is there a way to get rid of it altogether, given we don't have GUI nodes any more and are unlikely to have them ever again either. JAB. -- Jonathan A. Buzzard Tel: +44141-5483420 HPC System Administrator, ARCHIE-WeSt. University of Strathclyde, John Anderson Building, Glasgow. G4 0NG _______________________________________________ gpfsug-discuss mailing list gpfsug-discuss at gpfsug.org http://gpfsug.org/mailman/listinfo/gpfsug-discuss_gpfsug.org
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