[ceph-users] Re: High swap usage on one replication node

Hi there, I think we have our OSD nodes setup with vm.swappiness = 0 If I remember correctly few years ago vm.swappiness = 0 was changed and now it does not prevent swapping it just reduces the changes of memory being send to swap. Cheers, Xavier. -----Mensaje original----- De: Götz Reinicke <goetz.reinicke(a)filmakademie.de> Enviado el: viernes, 6 de diciembre de 2019 8:14 Para: ceph-users <ceph-users(a)ceph.com> Asunto: [ceph-users] High swap usage on one replication node Hi, our Ceph 14.2.3 cluster so far runs smooth with replicated and EC pools, but since a couple of days one of the dedicated replication nodes consumes up to 99% swap and stays at that level. The other two replicated nodes use +- 50 - 60% of swap. All the 24 NVMe OSDs per node are BlueStore with default settings, 128GB RAM. The vm.swappiness is set to 10. Do you have any suggestions how to handle/reduce the swap usage? Thanks for feedback and regards . Götz