[LU-2069] Cannot start ZFS-backed OST: "Can't find fsfilt_osd-zfs interface"

• Type: Bug
• Resolution: Fixed
• Priority: Major
• Affects Version/s: Lustre 2.4.0
• Labels: topsequoia
• Environment: Lustre OSS: 2.3.51-2chaos
• Severity: 3
• Assignee: Mikhail Pershin
• Reporter: Prakash Surya (Inactive)

Description

After upgrading our ZFS-backed servers to 2.3.51-2chaos, I'm unable to start the OST:

LustreError: 6295:0:(fsfilt.c:122:fsfilt_get_ops()) Can't find fsfilt_osd-zfs interface
LustreError: 6295:0:(filter.c:2324:filter_setup()) lstest-OST0181: filter_common_setup failed: -256.
LustreError: 6295:0:(obd_config.c:572:class_setup()) setup lstest-OST0181 failed (-256)
LustreError: 6295:0:(obd_config.c:1545:class_config_llog_handler()) MGC172.20.5.2@o2ib500: cfg command failed: rc = -256
Lustre:    cmd=cf003 0:lstest-OST0181  1:dev  2:0  3:f  
LustreError: 15c-8: MGC172.20.5.2@o2ib500: The configuration from log 'lstest-OST0181' failed (-256). This may be the result of communication errors between this node and the MGS, a bad configuration, or other errors. See the syslog for more information.
LustreError: 6183:0:(obd_mount.c:1212:server_start_targets()) failed to start server lstest-OST0181: -256
Lustre: lstest-OST0181: Unable to start target: -256
LustreError: 6183:0:(obd_config.c:619:class_cleanup()) Device 3 not setup
Lustre: server umount lstest-OST0181 complete
LustreError: 6183:0:(obd_mount.c:2332:lustre_fill_super()) Unable to mount  (-256)