[Xymon] usb disk not showing

[Kris Springer]

Continued thanks for the responses.  I did try commenting everything out 
of the analysis.cfg except for the default DISK * line, but still no 
joy.  I don't think analysis.cfg is causing the USB to be ignored.  The 
xymonclient-linux script has been set back to it's original state.

Kris Springer


On 11/29/22 08:28, Adam Thorn wrote:
> 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
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