Here are some logs and the infos from the mdsc files. But I am afraid that
there might not be much info in the logs, since I had a very low log level.
Look for example at 2015-05-18T21:28:33+02:00. The mdsc files are concatenated
from all of the clients.
> Date: Tue, 19 May 2015 16:45:12 +0800
> Subject: Re: [ceph-users] mds crashing
> From: uker...@gmail.com
> To: bur...@muenster.de
> CC: mo...@ksu.edu; ceph-users@lists.ceph.com
>
> On Tue, May 19, 2015 at 4:31 PM, Markus Blank-Burian <bur...@muenster.de>
> wrote:
> > I am afraid, I hit the same bug. Giant worked fine, but after upgrading to
> > hammer (0.94.1) and putting some load on it, the MDSs eventually crashed and
> > now I am stuck in clientreplay most of the time. I am also using the cephfs
> > kernel client (3.18.y). As I didn't find a corresponding tracker entry .. is
> > there already a patch available?
> >
>
> Please send mds log and /sys/kernel/debug/ceph/*/mdsc on client
> machine to us. Besides, Is there warnings like "cluster [WRN] slow
> request [several thousands or more ] seconds old, received at ...:
> client_request(client.734537:23 ...) " in your ceph cluster log.
>
> Regards
> Yan, Zheng
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