I was having an issue with BBWin client messages being too large and getting truncated. In the xymonserver.cfg help file, eg:
"MAXMSG_STATUS The maximum size of a "status" message in kB, default: 256. "
I tried putting that variable in and enlarging it to 512 but still received the same error and no change to MAXMSG either. I found I had to use a value in bytes, not KB as stated - this was reported back in 2006:
http://lists.xymon.com/oldarchive/2006/05/msg00196.html
I assume this applies to all MAXMSG_* settings, I only had to deal with STATUS, DATA and CLIENT.
I also found I had to restart xymon for it to pick up the changes. It may be possible to just kill -HUP or something, I didn't try. But I didn't expect this behaviour as the other config changes I've made have been picked up on the fly...
But irrespective of this little issue, thanks everyone for a great system.
cheers, Phil