Il 26/10/20 14:46, mabi ha scritto: >> I solved it by "degrading" the volume to replica 2, then cleared the >> arbiter bricks and upgraded again to replica 3 arbiter 1. > Thanks Diego for pointing out this workaround. How much data do you have on that volume in terms of TB and files? Because I have around 3TB of data in 10 million files. So I am a bit worried of taking such drastic measures. The volume is built by 26 10TB disks w/ genetic data. I currently don't have exact numbers, but it's still at the beginning, so there are a bit less than 10TB actually used. But you're only removing the arbiters, you always have two copies of your files. The worst that can happen is a split brain condition (avoidable by requiring a 2-nodes quorum, in that case the worst is that the volume goes readonly). > How bad was the load after on your volume when re-adding the arbiter brick? and how long did it take to sync/heal? IIRC it took about 3 days, but the arbiters are on a VM (8CPU, 8GB RAM) that uses an iSCSI disk. More than 80% continuous load on both CPUs and RAM. > Would another workaround such as turning off quotas on that problematic volume work? That sounds much less scary but I don't know if that would work... I don't know, sorry. -- 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
