[gpfsug-discuss] swapped_warn event

[Jonathan Buzzard]

I have a question about the swapped_warn event. It would appear the only 
way to clear this message is to reboot the node or do a swapoff/swapon

If I try an mmhealth event resolve swapped_warn I get a message to say 
swapped_warn is not manually resolvable.

Looking at one of the nodes showing this event, there is 1.2GB of swap 
being used which is not usual on a Linux server. There is however 160GB 
of free RAM, the server is not actually "swapping" at the moment and the 
event is not resolving.

It does not appear to be a configurable threshold either.

So given that a Linux server is likely to "use" swap even if it has 
*never* actually ran out of RAM and swapped since it was booted. What's 
the purpose of this event and can I do something about it?


JAB.

-- 
Jonathan A. Buzzard                         Tel: +44141-5483420
HPC System Administrator, ARCHIE-WeSt.
University of Strathclyde, John Anderson Building, Glasgow. G4 0NG