Hello! I have a a small CEPH cluster and one of the machines are using much more ram then the other. Every thing works fine except that all memory get consumed and then the all the swap. I have two identical machines, each with 12x2TB SATA disks and 40GB RAM and 8 core cpu. They have been in use for about ten months and up until now every thing has worked fine. They use to use around 80% of RAM but now one of them use 99% after an hour. I have looked around and I can not understand why this is happening. Where would be the best place to start looking for a solution?