df hanging will cause xymon-client to hang.

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.

What I found very disturbing is that there is no logs at all saying that
df takes long to accomplish. Instead of finding a way to solve this
xymon-client hanging out, could we somehow let xymon-client write a
message on the log, saying that df did not return since a long time ?

cED