You do eventually find out when the status turns purple.
This is a pretty hard one to deal with, from my experience. A hang on something NFS-related is pretty difficult to get out of. I've seen that mounting NFS with the "bg" option can improve this somewhat, but that might create other problems.
--
____ *Note: UMDNJ is now Rutgers-Biomedical and Health Sciences*
|| \\UTGERS |---------------------*O*---------------------
||_// Biomedical | Ryan Novosielski - Senior Technologist
|| \\ and Health | user-46c89e614701@xymon.invalid - 973/972.0922 (2x0922)
|| \\ Sciences | OIRT/High Perf & Res Comp - MSB C630, Newark
`'
From: Xymon [xymon-bounces at xymon.com] On Behalf Of Cédric BRINER [user-faf7f01cd570@xymon.invalid]
Sent: Thursday, June 18, 2015 9:11 AM
To: xymon at xymon.com
Subject: [Xymon] df hanging will cause xymon-client to hang.
Hello,
I'm running a xymon-client on a Debian Jessie.
OS: Debian
OS-Release: 8 (Jessie)
xymon-client version : 4.3.17
The error happend due to a nfs ressource not responding. I suppose that
as xymon launch "df" to get information and as the nfs was hanging, the
xymon-client is no able to detect that the df hangs and it does not send
any data to the server. Worst, the xymon-client is not verbose at all,
it does not tell this test (df) takes too long to accomplish.
Many thanks for xymon.
Regards.
Cédric BRINER