[CRIU] Help on CRIU , P.haul and docker migration

[Veronika Kabatova]

----- Original Message -----
> From: "Bhakti Bohara" <bbohara at asu.edu>
> To: criu at openvz.org
> Cc: xemul at virtuozzo.com
> Sent: Tuesday, February 28, 2017 8:38:46 AM
> Subject: [CRIU] Help on CRIU , P.haul and docker migration
> 
> Hello All
> 
> I am attempting to live migrate the docker containers using the below
> tutorial
> 
> https://github.com/xemul/p.haul/blob/master/test/docker/HOWTO
> 
> I am getting the below error when I run
> 
> ubuntu at ubuntu-VM:~/Downloads/p.haul$ ./p.haul-service
> Traceback (most recent call last):
> File "./p.haul-service", line 6, in <module>
> import phaul.args_parser
> File "/home/ubuntu/Downloads/p.haul/phaul/args_parser.py", line 8, in
> <module>
> import criu_api
> File "/home/ubuntu/Downloads/p.haul/phaul/criu_api.py", line 15, in <module>
> import criu_req
> File "/home/ubuntu/Downloads/p.haul/phaul/criu_req.py", line 5, in <module>
> import pycriu.rpc_pb2
> ImportError: No module named rpc_pb2
> 
> 
> I have installed following packages .
> 
> CRIU - gcc , protobuf , protobuf-c , protobuf-c-devel
> p.haul - python , python-rpyc , protobuf-python
> 

Hi, I encountered this error on RHEL and I'm fairly sure it had same source
as yours. With criu commit f3e412f9004486cbfab285bedf8d47d421551f8a, rpc module
was renamed to rpc_pb2 and p.haul commit 4c730d81305809572959094fb0442d57aafc0211
reflected on this change.

If you have installed criu package from your distro's repository and not from
git, it's possible this change is not included in the version available. For
a simple workaround you can revert the p.haul commit (just change all
"import pycriu.rpc_pb2" lines to "import pycriu.rpc") and it works well with
older criu versions -- at least in my case it did.

Of course you can build criu yourself and point p.haul to right files / replace
the original ones.


Hope this helps you solve the issue, if not try to include package versions so
someone else can help you more :)


-- Veronika Kabatova


> 
> 
> 
> Has any one seen the similar error?
> 
> Also is there any other way of migrating docker containers as the article is
> from 2015 and since then there have been alot of updates.
> 
> Thank you for your time.
> 
> 
> Regards
> Bhakti
> 
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