Hosts that don't have enough memory trigger the following event: "Available memory of host <host> [<memory> MB] is under defined threshold [1024 MB]". This event should be removed, since the threshold is irrelevant for Gluster and isn't configurable in the GUI.
I think we should still retain it if it is configurable using the command line config tool.
Closing this as there was no response to above comments, and alerts related to CPU/Memory/Disk usage are useful for administrators, and we intend to provide them.