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

[jjs - mainphrame]

Hi Kir,

Are you sure that's the right list? I don't see any users there, it's all
hard core dev, posting patches.

Before I take the plunge and raise my hand there, I was curious to know if
any OVZ 7 user had actually gotten vzctl snapshot to work.

Joe

On Wed, Oct 28, 2015 at 4:17 PM, Kir Kolyshkin <kir at openvz.org> wrote:

> 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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