Re: [atomic-devel] Fedora 26 change: using overlayfs as default

[Josh Berkus <jberkus redhat com>]

So, I've done some testing, thanks to Dusty's setup.

I wasn't able to test on Kubernetes because of some setup issues.
However, I hammered away at Docker using some IO-intensive applications,
including PostgreSQL and Etcd, both of which write data frequently to
some unexpected places.

So far I haven't seen any unexpected IO errors from containers running
under overlayfs.

And having all of storage be one big volume is really nice; it
eliminates a longstanding issue we've had with disk allocation; the
whole disk is simply available.

So +1 on moving to overlayfs for F26.

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Josh Berkus
Project Atomic
Red Hat OSAS