Re:Docker in Production: A History of Failure
by strange_quark on Friday November 04, 2016 @11:49AM
(#12873504)
You have to use devicemapper in direct-lvm mode in order to get free space back. I agree it's not the best out-of-box experience, but so far we haven't had any problems running ECS on CentOS instances since switching to direct-lvm.
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Re:Docker in Production: A History of Failure
by coleca on Friday November 04, 2016 @12:45PM
(#12873931)
Yes, although loopback mode for devicemapper is the out of the box configuration for Docker even though Docker themselves doesn't recommend it for production. I had tons of issues w/devicemapper on CentOS 7 (kernel panics causing AWS to mark the host as unhealthy and kill it off) that I was finally only able to resolve by switching to AUFS under Ubuntu 16.04, which has worked pretty well for me. Knock on wood, AUFS has been pretty solid so far.