[Xymon] usb disk not showing

[Adam Thorn]

On 29/11/2022 01:21, Kris Springer wrote:

> Thanks for pointing me in the direction of the client script.  I messed around with it a lot

I'd advise against editing the xymonclient script unless you're very 
careful, because...

> So then in the script with all the df stuff commented out, I had it run
> df /dev/sda

...putting this in the client script will break server-side processing 
because...

> The results of the script show the USB, but nothing shows up on the 
> Server Disk page except this error.
> Expected strings (Capacity and Mounted) not found in df output

..one of the df arguments specified in the original client script is 
"-P" which specifies "use the POSIX output format". Compare the header 
row generated by df with and without -P:

$ df | head -n1
Filesystem     1K-blocks    Used Available Use% Mounted on

$ df -P | head -n1
Filesystem     1024-blocks    Used Available Capacity Mounted on

xymond is expecting the latter format, so by manually hacking the client 
script and changing the arguments, the message sent to the server is no 
longer in the format it expects - which is what's leading to that 
"Expected strings ... not found" message, I think.

I'd suggest putting the original client script back in place and 
debugging from there. Perhaps a good place to start would be with a very 
simple analysis.cfg with just two lines:

DEFAULT
   DISK * 90 95

and nothing else. If your disk then shows up in the 'disk' report, the 
problem is somewhere in your live analysis.cfg. I'm not immediately sure 
when analysis.cfg is reread - I can't see any mention in the 
documentation, but I may not be looking in the right place.

Adam