Ceph

from ML:

Date: Mon, 24 Sep 2012 22:14:39 +0100
From: John Leach <john@brightbox.co.uk>
To: ceph-devel@vger.kernel.org
Subject: librados: failed to decode message of type 59 v1: buffer::end_of_buffer

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Hi,

I'm calling rados_ioctx_pool_stat and it's hanging.

logs show:

> 2012-09-24 21:30:08.411947 7f0041251700 failed to decode message of type 59
v1: buffer::end_of_buffer
> 2012-09-24 21:30:08.412286 7f0043255700 monclient: hunting for new mon

my local client is the Ubuntu Precise provided librados2 package
(0.41-1ubuntu2.1)

my cluster is running the unstable packages provided by Ceph
(0.51-1precise).

If I upgrade my client just up to the stable 0.48.1argonaut-1precise
package, it fixes the problem.

If the protocol changed, then I'd expect librados would let me know. Is
there some way to check this? rados_version returns the version of the
library, but I can't see how to get the version of the cluster (or quite
how I'd compare them in a meaningful way).

Thanks,

John.