Utilize new Linux kernel v5.6 prctl PR_SET_IO_FLUSHER option
The ceph-osd and ceph-mon daemons should set the PR_SET_IO_FLUSHER process option so that syscalls don't cause recursive IO operations back on itself in hyper-converged scenarios.
#1 Updated by Fabian Pfannes 9 months ago
Rook gives a warning to not use XFS with hyperconverged settings (see https://github.com/rook/rook/blob/v1.11.6/Documentation/Storage-Configuration/Block-Storage-RBD/block-storage.md?plain=1#L83). I tracked it down to this issue. Linux kernel v5.6 is out there for quite a while. Are there any news on this? Would be very valuable for small cluster setups with shared tasks.