[sheepdog-users] sheepdog upgrade from 0.7.0 to 0.7.5 failed

[redtone]

[root at sheepdog1 sheepdog]# sheep -u -w size=1000,dir=/ssdcache,directio -j
dir=/journal,size=1000 /var/lib/sheepdog/,/disk/sdb/,/disk/sdc/
[root at sheepdog1 sheepdog]# tail sheep.log
Nov 18 19:00:19  ERROR [main] init_config_file(86) This sheep version is not
compatible with the existing data layout, 3
Nov 18 19:00:19  ERROR [main] do_epoch_log_read(78) invalid epoch 46 log
Nov 18 19:00:19  ERROR [main] main(791) failed to create sheepdog cluster
Nov 18 19:00:19  ERROR [main] crash_handler(490) sheep pid 14630 exited
unexpectedly.
Nov 18 19:00:52   INFO [main] md_add_disk(141) /disk/sdb, nr 1
Nov 18 19:00:52   INFO [main] md_add_disk(141) /disk/sdc, nr 2
Nov 18 19:00:52  ERROR [main] init_config_file(86) This sheep version is not
compatible with the existing data layout, 3
Nov 18 19:00:52  ERROR [main] do_epoch_log_read(78) invalid epoch 46 log
Nov 18 19:00:52  ERROR [main] main(791) failed to create sheepdog cluster
Nov 18 19:00:52  ERROR [main] crash_handler(490) sheep pid 14638 exited
unexpectedly.