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On 2017-07-05 20:42, Ilya Dryomov wrote:
On Wed, Jul 5, 2017 at 8:32 PM, David Turner < drakonstein@xxxxxxxxx> wrote:
I had this problem occasionally in a cluster where we were regularly mapping
RBDs with KRBD. Something else we saw was that after this happened for
un-mapping RBDs, was that it would start preventing mapping some RBDs as
well. We were able to use strace and kill the sub-thread that was stuck to
allow the RBD to finish un-mapping, but as it turned out, the server would
just continue to hang on KRBD functions until the server was restarted. The
Did you ever report this? Thanks, Ilya _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxxhttp://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
This may or may not be related, but if you do a lot of mapping/unmapping it may be better to load the rbd module with
modprobe rbd single_major=Y
load it before running targetcli or rtslib as they load it without this param.
/Maged
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