is reinstalling the head node an option?
trick1 Guy Who Does Stuff
I like to build clusters
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So what I have found outside of bright cluster (BBC - as in I had this kind of issue under ubuntu in my cluster Before Bright Cl;uster) is that you need to pay attention to the drivers that... (More)
So checking the install guide for 9.1 (https://support.brightcomputing.com/manuals/9.1/installation-manual.pdf8) the minimum head node requirements are
• x86-64, or ARMv8 CPU
• 4GB RAM • 80GB diskspace
• 2 Gigabit Ethernet NICs (for the most common Type 1... (More)