[Expired for zfs-linux (Ubuntu) because there has been no activity for
60 days.]
** Changed in: zfs-linux (Ubuntu)
Status: Incomplete => Expired
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https://bugs.launchpad.net/bugs/2042841
Title:
Snapshots of encrypted zfs 2.1.5 filesystems sometimes broken
Status in zfs-linux package in Ubuntu:
Expired
Bug description:
As reported in https://github.com/openzfs/zfs/issues/15474 -- I have
had occasional broken snapshots with ZFS 2.1.5 on Jammy on encrypted
filesystems.
This is _not_ the same problem as
https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1987190
**Manifestation**
# ls -l /var/lib/mysql/redacted/.zfs/snapshot/planb-20231101T0500Z
ls: cannot access
'/var/lib/mysql/redacted/.zfs/snapshot/planb-20231101T0500Z/aria_log.00000001':
Input/output error
ls: cannot access
'/var/lib/mysql/redacted/.zfs/snapshot/planb-20231101T0500Z/aria_log_control':
Input/output error
total 10129
-????????? ? ? ? ? ? aria_log.00000001
-????????? ? ? ? ? ? aria_log_control
-rw-rw---- 1 mysql mysql 0 nov 1 02:55 ddl.log
-rw-rw---- 1 mysql mysql 16384 okt 17 10:26 ddl_recovery.log
-rw-rw---- 1 mysql mysql 10737419544 nov 1 02:55 galera.cache
-rw-rw---- 1 mysql mysql 8 okt 17 10:26 galera.pid
...
Creating newer snapshots succeeded just fine, but this snapshot was
unreadable: each and every file in in it was not readable (except for
0-sized files).
Trying to 'zfs send' this snapshot failed as well.
**Workaround**
Deleting the snapshot worked. But at some point a new snapshot would
be broken again.
**Fix**
Upgrading to 2.1.13 -- as described in the Github ticket -- fixed the
problem.
Cheers,
Walter Doekes
OSSO B.V.
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