[Users] OVZ 7 beta - ploop backup fully functional?

[Kir Kolyshkin]

On 10/28/2015 02:31 PM, jjs - mainphrame wrote:
> Greetings,
>
> I've been running some test containers on OVZ7 beta, and, while I 
> realize not all functionality is in place yet, they have been so 
> dependable that I'm starting to depend on them.
>
> So, understandably, I was looking at backups, and my first tries with 
> vzctl snapshot failed. I don't want to spend a lot of time 
> troubleshooting something that's not yet known to be working, but in 
> case it is, has anyone else had better luck?
>
>
> Here is the result of my attempt to make a backup:
>
> [root at hachi vz]# vzctl snapshot 1001
> Creating snapshot {57c8aa0d-1c04-4469-9d1e-c95fab04bd01}
> Storing /local/vz/private/1001/Snapshots.xml.tmp
> Setting up checkpoint...
> Failed to checkpoint the Container
> All dump files and logs were saved to 
> /local/vz/private/1001/dump/{57c8aa0d-1c04-4469-9d1e-c95fab04bd01}.fail
> Checkpointing failed
> Failed to create snapshot
> [root at hachi vz]#
>
>
> The last few lines of the dump log contain these clues:
>
> (00.570576) Error (proc_parse.c:404): Can't handle non-regular mapping 
> on 8366's map 7f2164d63000
> (00.570582) Error (cr-dump.c:1487): Collect mappings (pid: 8366) 
> failed with -1
> (00.570746) Unlock network
> (00.570751) Running network-unlock scripts
>
>
> There is no pid 8366 in the CT but on the host that pid corresponds to 
> the mysql instance running in the container that I'm trying to snapshot:
>
> [root at hachi vz]# ps -ef|grep 8366
> 27          8366    7098  0 14:03 ?        00:00:00 
> /usr/libexec/mysqld --basedir=/usr --datadir=/var/lib/mysql 
> --plugin-dir=/usr/lib64/mysql/plugin 
> --log-error=/var/log/mariadb/mariadb.log 
> --pid-file=/var/run/mariadb/mariadb.pid --socket=/var/lib/mysql/mysql.sock
>
> So, is this something that ought to work?
>

Hi Joe,

You might want to try writing to criu list with this question, they 
might have a clue.
See https://lists.openvz.org/mailman/listinfo/criu
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