y restarting
> the osd that it is reading from?
>
>
>
>
> -Original Message-
> From: Dan van der Ster [mailto:d...@vanderster.com]
> Sent: donderdag 2 mei 2019 8:51
> To: Yan, Zheng
> Cc: ceph-users; pablo.llo...@cern.ch
> Subject: Re: [ceph-users] co-located
...@vanderster.com]
Sent: donderdag 2 mei 2019 8:51
To: Yan, Zheng
Cc: ceph-users; pablo.llo...@cern.ch
Subject: Re: [ceph-users] co-located cephfs client deadlock
On Mon, Apr 1, 2019 at 1:46 PM Yan, Zheng wrote:
>
> On Mon, Apr 1, 2019 at 6:45 PM Dan van der Ster
wrote:
> >
> > Hi al
On Mon, Apr 1, 2019 at 1:46 PM Yan, Zheng wrote:
>
> On Mon, Apr 1, 2019 at 6:45 PM Dan van der Ster wrote:
> >
> > Hi all,
> >
> > We have been benchmarking a hyperconverged cephfs cluster (kernel
> > clients + osd on same machines) for awhile. Over the weekend (for the
> > first time) we had on
On Mon, Apr 1, 2019 at 6:45 PM Dan van der Ster wrote:
>
> Hi all,
>
> We have been benchmarking a hyperconverged cephfs cluster (kernel
> clients + osd on same machines) for awhile. Over the weekend (for the
> first time) we had one cephfs mount deadlock while some clients were
> running ior.
>
>
It's the latest CentOS 7.6 kernel. Known pain there?
The user was running a 1.95TiB ior benchmark -- so, trying to do
parallel writes to one single 1.95TiB file.
We have
max_file_size 219902322 (exactly 2 TiB)
so it should fit.
Thanks!
Dan
On Mon, Apr 1, 2019 at 1:06 PM Paul Emmerich wr
Which kernel version are you using? We've had lots of problems with
random deadlocks in kernels with cephfs but 4.19 seems to be pretty
stable.
Paul
--
Paul Emmerich
Looking for help with your Ceph cluster? Contact us at https://croit.io
croit GmbH
Freseniusstr. 31h
81247 München
www.croit.io
