Yes Luis, good guess!! ;) -----Original Message----- Cc: ceph-users Subject: Re: [ceph-users] ceph node crashed with these errors "kernel: ceph: build_snap_context" (maybe now it is urgent?) On Mon, Dec 02, 2019 at 10:27:21AM +0100, Marc Roos wrote:

I have been asking before[1]. Since Nautilus upgrade I am having these, with a total node failure as a result(?). Was not expecting this in my 'low load' setup. Maybe now someone can help resolving this? I am also waiting quite some time to get access at https://tracker.ceph.com/issues.

Just a wild guess: do you have a lot of snapshots (> ~400)? If so, that's probably the problem. See [1] and [2]. [1] https://docs.ceph.com/docs/master/cephfs/experimental-features/#snapshots [2] https://tracker.ceph.com/issues/21420 Cheers, -- Luís

Dec 1 03:14:36 c04 kernel: ceph: build_snap_context 100020c9287 ffff911a9a26bd00 fail -12 Dec 1 03:14:36 c04 kernel: ceph: build_snap_context 100020c9283 ffff911d34e69d00 fail -12 Dec 1 03:14:36 c04 kernel: ceph: build_snap_context 100020c9276 ffff911d34e69c00 fail -12 Dec 1 03:14:36 c04 kernel: ceph: build_snap_context 100020c926c ffff912068b92c00 fail -12 Dec 1 03:14:36 c04 kernel: ceph: build_snap_context 100020c9268 ffff912068b93000 fail -12 Dec 1 03:14:36 c04 kernel: ceph: build_snap_context 100020c926d ffff912068b92900 fail -12 Dec 1 03:14:36 c04 kernel: ceph: build_snap_context 100020c928a ffff912118e5be00 fail -12 Dec 1 03:14:36 c04 kernel: ceph: build_snap_context 100020c9272 ffff9119950d9500 fail -12 Dec 1 03:14:36 c04 kernel: ceph: build_snap_context 100020c9269 ffff911940f3d000 fail -12 Dec 1 03:14:36 c04 kernel: ceph: build_snap_context 100020c9270 ffff911748427c00 fail -12 Dec 1 03:14:36 c04 kernel: ceph: build_snap_context 100020c926b ffff91169b000600 fail -12 Dec 1 03:14:36 c04 kernel: ceph: build_snap_context 100020c9281 ffff91169b000500 fail -12 Dec 1 03:14:36 c04 kernel: ceph: build_snap_context 100020c9288 ffff9115844d2500 fail -12 Dec 1 03:14:36 c04 kernel: ceph: build_snap_context 100020c927d ffff9115844d2e00 fail -12 Dec 1 03:14:36 c04 kernel: ceph: build_snap_context 100020c9280 ffff91186401b000 fail -12 Dec 1 03:14:36 c04 kernel: ceph: build_snap_context 100020c9267 ffff9121535ecc00 fail -12 Dec 1 03:14:36 c04 kernel: ceph: build_snap_context 100020c927c ffff9121cecb1e00 fail -12 Dec 1 03:14:36 c04 kernel: ceph: build_snap_context 100020c9271 ffff9121cecb0400 fail -12 Dec 1 03:14:36 c04 kernel: ceph: build_snap_context 100020c9279 ffff911d26646300 fail -12 Dec 1 03:14:36 c04 kernel: ceph: build_snap_context 100020c927f ffff911d26646900 fail -12 Dec 1 03:14:36 c04 kernel: ceph: build_snap_context 100020c9275 ffff9121cecb1700 fail -12 Dec 1 03:14:36 c04 kernel: ceph: build_snap_context 100020c9259 ffff91170c9f6600 fail -12 Dec 1 03:14:36 c04 kernel: ceph: build_snap_context 100020c9257 ffff9118ef2a8000 fail -12 Dec 1 03:14:36 c04 kernel: ceph: build_snap_context 100020c924e ffff911a1e091800 fail -12 Dec 1 03:14:36 c04 kernel: ceph: build_snap_context 100020c9262 ffff911a1e090c00 fail -12 Dec 1 03:14:36 c04 kernel: ceph: build_snap_context 100020c9266 ffff9115e3859500 fail -12 Dec 1 03:14:36 c04 kernel: ceph: build_snap_context 100020c924f ffff9118aefd1300 fail -12 Dec 1 03:14:36 c04 kernel: ceph: build_snap_context 100020c925f ffff91170c9f6100 fail -12 Dec 1 03:14:36 c04 kernel: ceph: build_snap_context 100020c9252 ffff9115e3859800 fail -12 Dec 1 03:14:36 c04 kernel: ceph: build_snap_context 100020c9256 ffff912045dc5300 fail -12 Dec 1 03:14:36 c04 kernel: ceph: build_snap_context 100020c9254 ffff91170c9f6900 fail -12 Dec 1 03:14:36 c04 kernel: ceph: build_snap_context 100020c9261 ffff91170c9f7100 fail -12 Dec 1 03:14:36 c04 kernel: ceph: build_snap_context 100020d4ec4 ffff9118aefd0000 fail -12

[1] https://www.mail-archive.com/ceph-users@ceph.io/msg01088.html https://www.mail-archive.com/ceph-users@ceph.io/msg00969.html _______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-leave@ceph.io