On 10/28/2015 06:07 PM, jjs - mainphrame wrote:
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.
Definitely. Unlike with OpenVZ, where we have users@ and devel@, there's
only
one mailing list for CRIU, and among the other things it is also used to
get support.
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 <k...@openvz.org
<mailto:k...@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@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@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@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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