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From Mike Michel <mike.mic...@mmbash.de>
Subject AW: Feature request: move in-flight containers w/o stopping them
Date Fri, 19 Feb 2016 11:05:05 GMT
Question is if you really need this when you are moving in the world of containers/microservices
where it is about building stateless 12factor apps except databases. Why moving a service
when you can just kill it and let the work be done by 10 other containers doing the same?
I remember a talk on dockercon about containers and live migration. It was like: „And now
where you know how to do it, dont’t do it!“ 

 

Von: Avinash Sridharan [mailto:avinash@mesosphere.io] 
Gesendet: Freitag, 19. Februar 2016 05:48
An: user@mesos.apache.org
Betreff: Re: Feature request: move in-flight containers w/o stopping them

 

One problem with implementing something like vMotion for Mesos is to address seamless movement
of network connectivity as well. This effectively requires moving the IP address of the container
across hosts. If the container shares host network stack, this won't be possible since this
would imply moving the host IP address from one host to another. When a container has its
network namespace, attached to the host, using a bridge, moving across L2 segments might be
a possibility. To move across L3 segments you will need some form of overlay (VxLAN maybe
?) . 

 

On Thu, Feb 18, 2016 at 7:34 PM, Jay Taylor <outtatime@gmail.com <mailto:outtatime@gmail.com>
> wrote:

Is this theoretically feasible with Linux checkpoint and restore, perhaps via CRIU?http://criu.org/Main_Page


On Feb 18, 2016, at 4:35 AM, Paul Bell <arachweb@gmail.com <mailto:arachweb@gmail.com>
> wrote:

Hello All,

 

Has there ever been any consideration of the ability to move in-flight containers from one
Mesos host node to another?

 

I see this as analogous to VMware's "vMotion" facility wherein VMs can be moved from one ESXi
host to another.

 

I suppose something like this could be useful from a load-balancing perspective.

 

Just curious if it's ever been considered and if so - and rejected - why rejected?

 

Thanks.

 

-Paul

 

 





 

-- 

Avinash Sridharan, Mesosphere

+1 (323) 702 5245


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