Den mån 21 maj 2018 kl 18:28 skrev Up Safe <upandsafe@xxxxxxxxx>:
I don't believe I have this kind of behavior.AFAIK, files are created or modified by only 1 client at a time.
Make sure that this is the case then, its _very_ easy to start out with something along the lines of "right now I cannot image this" and later on, someone makes a change that allows and does writes to both sites, and if that part for some reason works without weird races, this solution gets entrenched and after that, someone finds out there sometimes is a race and sometimes gives bad results and none understands how it got this bad.
Storage solutions require a lot of planning and summing up demands, especially when you start doing multisite things. Not because you can't add disks, network cards or boxes later, but because some of the early choices might affect what it can or cannot do later on.
On Mon, May 21, 2018, 19:06 Brady Deetz <bdeetz@xxxxxxxxx> wrote:What is your expected behavior for when Client A writes to File B in Datacenter 1 and Client C writes to File B in Datacenter 2 at the exact same time?I don't think you can perfectly achieve what you are requesting with Ceph or many other storage solutions.
May the most significant bit of your life be positive.
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