[sheepdog-users] After upgrade sheep doesn't start

[Liu Yuan]

On Tue, Sep 03, 2013 at 09:18:56AM +0200, Valerio Pachera wrote:
> 0.7.0_72_g06f806f
> QEMU emulator version 1.6.0
> 
> running sheep withou '-u'
> Sep 03 09:10:25   INFO [main] md_add_disk(144) /mnt/sheep/dsk02, nr 1
> Sep 03 09:10:25  ERROR [main] init_config_file(97) This sheep version
> is not compatible with the existing data layout, 2
> Sep 03 09:10:25  ERROR [main] init_config_file(114) use '-u' option to
> upgrade sheep store
> Sep 03 09:10:25  ERROR [main] crash_handler(492) sheep pid 28216
> exited unexpectedly.
> 
> with '-u'
> Sep 03 09:14:59   INFO [main] md_add_disk(144) /mnt/sheep/dsk02, nr 1
> Sep 03 09:14:59  ERROR [main] init_config_file(97) This sheep version
> is not compatible with the existing data layout, 2
> Sep 03 09:14:59  ERROR [main] migrate_from_v2_to_v3(423) not implemented
> Sep 03 09:14:59  ERROR [main] crash_handler(492) sheep pid 28270
> exited unexpectedly

We break the compatibility recently. To upgrade, I'd suggest

1. dog cluster snapshot save old_data
2. shutdown and upgrade the cluster, remove all the data
3. start a new cluster and 'dog cluster snapshot load old_data'

Thanks
Yuan