On Thu, Dec 14, 2017 at 12:49 AM, Florent B <flor...@coppint.com> wrote: > On 13/12/2017 17:40, Yan, Zheng wrote: >> On Wed, Dec 13, 2017 at 11:49 PM, Florent B <flor...@coppint.com> wrote: >>> On 13/12/2017 16:48, Yan, Zheng wrote: >>>> On Wed, Dec 13, 2017 at 11:23 PM, Florent B <flor...@coppint.com> wrote: >>>>> The problem is : only a single client accesses each file ! >>>>> >>>> do you mean the file is only accessed by one client from beginning to end? >>>> >>>> >>>>> It is not related to a multiple clients accessing a same file at the >>>>> same time, at all. >>>> The problem can happen even multiples clients accessing a file at >>>> different time. >>>> >>> Only single client from beginning to end. Each mail account is assigned >>> to a backend (statically). >> kernel and libfuse version? do you know pattern of corruption? > > Systems are on Debian Jessie : kernel 3.16.0-4-amd64 & libfuse 2.9.3-15. > > I don't know pattern of corruption, but according to error message in > Dovecot, it seems to expect data to read but reach EOF. > > All seems fine using fuse_disable_pagecache (no more corruption, and > performance increased : no more MDS slow requests on filelock requests).
I checked ceph-fuse changes since kraken, didn't find any clue. I would be helpful if you can try recent version kernel. Regards Yan, Zheng _______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
