Re: Are MDS pins meant to be persisted?

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Hi Dan,

On Thu, Apr 5, 2018 at 6:05 AM, Dan van der Ster <dan@xxxxxxxxxxxxxx> wrote:
> Hi Patrick,
>
> We are using pinning [1] on a few directories but after some network
> outages today (and MDS restarts) I noticed that subtrees below pins we
> set weeks ago were being split across MDSs.
> So are the pins meant to be persisted?
>
> I clearly see the "nice exports" happening at the moment of setfattr
> -n ceph.dir.pin, but we can't view that xattr so it isn't clear if the
> pins are persisted at all.

Yes they is persisted. You should see the pin in the output of "get
exports" for each subtree. This value would be what's stored in the
inode.

-- 
Patrick Donnelly
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