Hi, It works. Thanks a lot. /st
-----Original Message----- From: Jason Dillaman <jdill...@redhat.com> Sent: Tuesday, January 22, 2019 9:29 PM To: ST Wong (ITSC) <s...@itsc.cuhk.edu.hk> Cc: Ilya Dryomov <idryo...@gmail.com>; ceph-users@lists.ceph.com Subject: Re: [ceph-users] RBD client hangs Your "mon" cap should be "profile rbd" instead of "allow r" [1]. [1] http://docs.ceph.com/docs/master/rbd/rados-rbd-cmds/#create-a-block-device-user On Mon, Jan 21, 2019 at 9:05 PM ST Wong (ITSC) <s...@itsc.cuhk.edu.hk> wrote: > > Hi, > > > Is this an upgraded or a fresh cluster? > It's a fresh cluster. > > > Does client.acapp1 have the permission to blacklist other clients? You can > > check with "ceph auth get client.acapp1". > > No, it's our first Ceph cluster with basic setup for testing, without any > blacklist implemented. > > --------------- cut here ----------- > # ceph auth get client.acapp1 > exported keyring for client.acapp1 > [client.acapp1] > key = <key here> > caps mds = "allow r" > caps mgr = "allow r" > caps mon = "allow r" > caps osd = "allow rwx pool=2copy, allow rwx pool=4copy" > --------------- cut here ----------- > > Thanks a lot. > /st > > > > -----Original Message----- > From: Ilya Dryomov <idryo...@gmail.com> > Sent: Monday, January 21, 2019 7:33 PM > To: ST Wong (ITSC) <s...@itsc.cuhk.edu.hk> > Cc: ceph-users@lists.ceph.com > Subject: Re: [ceph-users] RBD client hangs > > On Mon, Jan 21, 2019 at 11:43 AM ST Wong (ITSC) <s...@itsc.cuhk.edu.hk> wrote: > > > > Hi, we’re trying mimic on an VM farm. It consists 4 OSD hosts (8 OSDs) and > > 3 MON. We tried mounting as RBD and CephFS (fuse and kernel mount) on > > different clients without problem. > > Is this an upgraded or a fresh cluster? > > > > > Then one day we perform failover test and stopped one of the OSD. Not sure > > if it’s related but after that testing, the RBD client freeze when trying > > to mount the rbd device. > > > > > > > > Steps to reproduce: > > > > > > > > # modprobe rbd > > > > > > > > (dmesg) > > > > [ 309.997587] Key type dns_resolver registered > > > > [ 310.043647] Key type ceph registered > > > > [ 310.044325] libceph: loaded (mon/osd proto 15/24) > > > > [ 310.054548] rbd: loaded > > > > > > > > # rbd -n client.acapp1 map 4copy/foo > > > > /dev/rbd0 > > > > > > > > # rbd showmapped > > > > id pool image snap device > > > > 0 4copy foo - /dev/rbd0 > > > > > > > > > > > > Then hangs if I tried to mount or reboot the server after rbd map. There > > are lot of error in dmesg, e.g. > > > > > > > > Jan 20 03:43:32 acapp1 kernel: rbd: rbd0: blacklist of client74700 > > failed: -13 > > > > Jan 20 03:43:32 acapp1 kernel: rbd: rbd0: failed to acquire lock: > > -13 > > > > Jan 20 03:43:32 acapp1 kernel: rbd: rbd0: no lock owners detected > > > > Jan 20 03:43:32 acapp1 kernel: rbd: rbd0: client74700 seems dead, > > breaking lock > > > > Jan 20 03:43:32 acapp1 kernel: rbd: rbd0: blacklist of client74700 > > failed: -13 > > > > Jan 20 03:43:32 acapp1 kernel: rbd: rbd0: failed to acquire lock: > > -13 > > > > Jan 20 03:43:32 acapp1 kernel: rbd: rbd0: no lock owners detected > > Does client.acapp1 have the permission to blacklist other clients? You can > check with "ceph auth get client.acapp1". If not, follow step 6 of > http://docs.ceph.com/docs/master/releases/luminous/#upgrade-from-jewel-or-kraken. > > Thanks, > > Ilya > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com -- Jason _______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
