[Xymon] Purple columns

[Mark Felder]

On Tue, Jan 20, 2015, at 06:03, Neil Simmonds wrote:
> We recently had a problem where all the standard test columns on a Linux
> client turned purple for 20 minutes and then resolved themselves. During
> this time 4 custom tests on that server were working ok.
> 
> I've looked through logs and can't find anything that gives me any clues
> as
> to why this could have happened.
> 
> Has anyone any idea why it might turn purple like this and then resolve
> itself with no outside intervention?
> 

Any more details about the server? Does it have NFS mounts?

(Far fetched, but I've seen NFS problems cause "df" to hang so Xymon
can't finish collecting data and then the server goes purple...)