[Gluster-users] snapshot mount fails in 3.12

[Richard Neuboeck]

Hi,

quick question about snapshot mounting: Were there changes in 3.12 that
were not mentioned in the release notes for snapshot mounting?
I recently upgraded from 3.10 to 3.12 on CentOS (using
centos-release-gluster312). The upgrade worked flawless. The volume
works fine too. But mounting a snapshot fails with those two error messages:

[2017-11-13 08:46:02.300719] E [glusterfsd-mgmt.c:1796:mgmt_getspec_cbk]
0-glusterfs: failed to get the 'volume file' from server
[2017-11-13 08:46:02.300744] E [glusterfsd-mgmt.c:1932:mgmt_getspec_cbk]
0-mgmt: failed to fetch volume file (key:snaps)

Up to the mounting everything works as before:
# gluster snapshot create test home no-timestamp
# gluster snapshot activate test
# gluster snapshot info test
Snapshot                  : test
Snap UUID                 : 1c07aed0-32f4-4e6b-b5bc-226578fb78e3
Created                   : 2017-11-13 08:22:07
Snap Volumes:

	Snap Volume Name          : b19a36dd16dd466985fbb0681539fe71
	Origin Volume name        : home
	Snaps taken for home      : 1
	Snaps available for home  : 255
	Status                    : Started
# mount -t glusterfs sphere-four:/snaps/test/home /mnt/temp/
Mount failed. Please check the log file for more details.

The log shows the following:
[2017-11-13 08:46:02.289163] I [MSGID: 100030] [glusterfsd.c:2496:main]
0-/usr/sbin/glusterfs: Started running /usr/sbin/glusterfs version
3.12.1 (args: /usr/sbin/glusterfs --volfile-server=sphere-four
--volfile-id=snaps --subdir-mount=/test/home /mnt/temp)
[2017-11-13 08:46:02.292629] W [MSGID: 101002]
[options.c:995:xl_opt_validate] 0-glusterfs: option 'address-family' is
deprecated, preferred is 'transport.address-family', continuing with
correction
[2017-11-13 08:46:02.298278] I [MSGID: 101190]
[event-epoll.c:613:event_dispatch_epoll_worker] 0-epoll: Started thread
with index 1
[2017-11-13 08:46:02.300719] E [glusterfsd-mgmt.c:1796:mgmt_getspec_cbk]
0-glusterfs: failed to get the 'volume file' from server
[2017-11-13 08:46:02.300744] E [glusterfsd-mgmt.c:1932:mgmt_getspec_cbk]
0-mgmt: failed to fetch volume file (key:snaps)
[2017-11-13 08:46:02.300903] W [glusterfsd.c:1347:cleanup_and_exit]
(-->/lib64/libgfrpc.so.0(rpc_clnt_handle_reply+0x90) [0x7feb51ed9e60]
-->/usr/sbin/glusterfs(mgmt_getspec_cbk+0x680) [0x55a5dbb97ef0]
-->/usr/sbin/glusterfs(cleanup_and_exit+0x6b) [0x55a5dbb9118b] ) 0-:
received signum (0), shutting down
[2017-11-13 08:46:02.300928] I [fuse-bridge.c:5833:fini] 0-fuse:
Unmounting '/mnt/temp'.
[2017-11-13 08:46:02.308875] I [fuse-bridge.c:5838:fini] 0-fuse: Closing
fuse connection to '/mnt/temp'.
[2017-11-13 08:46:02.308987] W [glusterfsd.c:1347:cleanup_and_exit]
(-->/lib64/libpthread.so.0(+0x7e25) [0x7feb50f70e25]
-->/usr/sbin/glusterfs(glusterfs_sigwaiter+0xe5) [0x55a5dbb91365]
-->/usr/sbin/glusterfs(cleanup_and_exit+0x6b) [0x55a5dbb9118b] ) 0-:
received signum (15), shutting down

Google was no help so far. Since the mount worked before the upgrade I'm
puzzled. What am I missing?

Thanks a lot!
Richard

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