> On Feb 11, 2018, at 6:50 PM, NeilBrown <[email protected]> wrote:
>
> Maybe - as you suggest in another email - it is due to some
> client/server incompatibility. I guess it is unavoidable with an fs
> like lustre to have incompatible protocol changes. Is there any
> mechanism for detecting the version of other peers in the cluster and
> refusing to run if versions are incompatible?
Yes, client and server exchange “feature bits” at connect time
and only use the subset of features that both can understand.
Bye,
Oleg
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