Il 20/10/20 15:53, Gilberto Nunes ha scritto: > I have 3 servers but the third one is a very low machine compared to the > 2 others servers. How much RAM does it have? > How could I create a replica 3 in order to prevent split-brain, but tell > the gluster to not use the third node too much??? You could have it host just arbiters in a "replica 3 arbiter 1" volume. I currently use a VM in this role, but it needs at least 8GB RAM to avoid OOM (it handles 26 arbiters, so you probably can get away with less if you have less bricks). My VM also have 8 CPUs to reduce the time needed for resync. Remember that backing filesystems for arbiters should be tweaked for allowing a lot of inodes. I formatted my XFS volumes with mkfs.xfs -i size=512,maxpct=90 /dev/sdXn to allow up to 90% for inodes (instead of the usual 5%) => a single fs can handle multiple arbiter bricks. -- Diego Zuccato DIFA - Dip. di Fisica e Astronomia Servizi Informatici Alma Mater Studiorum - Università di Bologna V.le Berti-Pichat 6/2 - 40127 Bologna - Italy tel.: +39 051 20 95786 ________ Community Meeting Calendar: Schedule - Every 2nd and 4th Tuesday at 14:30 IST / 09:00 UTC Bridge: https://bluejeans.com/441850968 Gluster-users mailing list Gluster-users@xxxxxxxxxxx https://lists.gluster.org/mailman/listinfo/gluster-users
