Hello,
sice the update from “core-8.5.80.41_0+186-Ubuntu_16.04-amd64” to “core-8.6.81.228_0+37-Ubuntu_16.04-amd64” or newer the Server use all my Memory (8Gb) and all my Swap (4Gb) then he Crashed / Restart and the mem is ok for short time.

0_1538031938424_mem.JPG

Greets
Mike