@ij my biggest complaint is with the read performance though. I'm not sure if I've exhausted all tuning opportunities yet, but reading from e.g. rados or rbd seems to incur high latencies and produce tiny reads, which is a terrible combination
@lexi - you should be able to increase read performance as well. At least that's what GlusterFS claims to be good for.
I'm using it for sharing/syncen LetsEncrypt SSL Certs between all of my VMs. Small task with no real performance needs, but I also thought about syncing TBs of data across servers (partly behind DSL).
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