This is probably caused by the counters used by the detailed graph not correctly handling the very large numbers.

These values come from UCD-MIB, quite old and probably not designed for huge values.

Adam.

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On 14 August 2015 11:04:20 am "Louis Bailleul" <louis.bailleul@phangos.fr> wrote:

Hi,

Just discovered a weirdness when I added a server that has 3TB of RAM : the ucd_memory graph is totally messed up.
It only displays negative amount of Cache/Shared buffers.

The legend shows that it didn't handle the 3TB correctly. 
But it seems to be fine for the health/memory view where the correct amount is displayed everywhere.

I have attached the debug output of the poller for this device.


Best regards,
Louis
 

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