[ceph-users] Re: Concerns about swap in ceph nodes

2023-03-17 Thread sbryan Song
In our case, we are using centos 8 and created a swap partition: #cat /etc/redhat-release CentOS Linux release 8.3.2011 Fstab info: # cat /etc/fstab # # /etc/fstab # Created by anaconda on Sat May 1 00:33:34 2021 # # Accessible filesystems, by reference, are maintained under '/dev/disk/'. # See

[ceph-users] Re: Concerns about swap in ceph nodes

2023-03-16 Thread Boris Behrens
Maybe worth to mention, because it caught me by surprise: Ubuntu creates a swap file (/swap.img) if you do not specify a swap partition (check /etc/fstab). Cheers Boris Am Mi., 15. März 2023 um 22:11 Uhr schrieb Anthony D'Atri < a...@dreamsnake.net>: > > With CentOS/Rocky 7-8 I’ve observed

[ceph-users] Re: Concerns about swap in ceph nodes

2023-03-15 Thread Anthony D'Atri
With CentOS/Rocky 7-8 I’ve observed unexpected usage of swap when there is plenty of physmem available. Swap IMHO is a relic of a time when RAM capacities were lower and much more expensive. In years beginning with a 2, and with Ceph explicitly, I assert that swap should never be enabled