Re: how can I achieve HA with ceph?

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On Wed, Dec 21, 2011 at 4:33 AM, Karoly Horvath <rhswdev@xxxxxxxxx> wrote:
> On Wed, Dec 21, 2011 at 12:03 AM, Gregory Farnum
>> It looks like maybe you got it turned on in the mon section rather
>> than the mds or global sections. :)
>
> right
>
>> However, as I look at these a little more it generally looks good,
>> even in trial 3. The only alarming thing that's present is a note that
>> two of your clients failed to reconnect to the MDS in time and were
>> cut off. Did you try establishing a new connection to the cluster and
>> seeing if that worked? It's possible there's a client bug, or that
>> there was some sort of network error that interfered with them.
>> -Greg
>
> By client I assume you mean the kernel driver.. the FS is freezed, so
> I cannot unmount (cannot even `shutdown`).. how can I force the client
> to reconnect?

Try a lazy force unmount:
umount -lf ceph_mnt_point/
And then mount again.
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