[Gluster-users] snapshot mount fails in 3.12

[Richard Neuboeck]

Thanks Amar!

On 13.11.17 11:51, Amar Tumballi wrote:
> Hi Richard, 
> 
> Thanks for posting this.
> 
> This issues is caused as part of the regression in 3.12.0 version [1],
> and is already fixed in 3.12.3 [2] version (3.12.3 is tagged now with
> couple of more subdirectory mount related fixes).
> 
> [1] - https://bugzilla.redhat.com/show_bug.cgi?id=1501235
> [2] - https://review.gluster.org/#/c/18506/
> 
> If you don't want to change the versions, then please remove the check
> for 'subdir-mount' in '/sbin/mount.glusterfs' and it will all work fine.
> 
> Regards,
> Amar
> 
> On Mon, Nov 13, 2017 at 2:50 PM, Richard Neuboeck <hawk at tbi.univie.ac.at
> <mailto:hawk at tbi.univie.ac.at>> wrote:
> 
>     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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> 
> 
> 
> 
> -- 
> Amar Tumballi (amarts)

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