TCP migration in CloudStack

[Hoang Minh <mi...@resl.kaist.ac.kr>]

Hello,

I'm currently interested in using some TCP migration techniques together
with CloudStack.

What I want to do is basically like this:
- An application is connecting to client using TCP connection
- I make the same application in a different host (server)
- Thus I want to somehow migrate the current TCP connection to this 'new'
application

Is there anyone out there who may have some information on this? Thanks.

Re: TCP migration in CloudStack

[Shanker Balan <sh...@shapeblue.com>]

Hi Hoang,

Comments inline.

On 13-Feb-2014, at 8:37 am, Hoang Minh <mi...@resl.kaist.ac.kr> wrote:

> Hello,
>
> I'm currently interested in using some TCP migration techniques together
> with CloudStack.
>
> What I want to do is basically like this:
> - An application is connecting to client using TCP connection

Ok

> - I make the same application in a different host (server)

Ok

> - Thus I want to somehow migrate the current TCP connection to this ‘new’
> application

You cant really “migrate” current connections to another host unless the
state table is maintained by the OS and the application itself can resume.

I doubt if there are apps out there which can resume the same session. TCP level
HA is difficult and usually very expensive.

> Is there anyone out there who may have some information on this? Thanks.

What you can however easily achieve is fault tolerance using CloudStack’s load
balancer (or any external load balancer.

http://cloudstack.apache.org/docs/en-US/Apache_CloudStack/4.2.0/html-single/Admin_Guide/index.html#external-firewalls-and-load-balancers


Hth.


--
@shankerbalan

M: +91 98860 60539 | O: +91 (80) 67935867
shanker.balan@shapeblue.com | www.shapeblue.com | Twitter:@shapeblue
ShapeBlue Services India LLP, 22nd floor, Unit 2201A, World Trade Centre, Bangalore - 560 055

Need Enterprise Grade Support for Apache CloudStack?
Our CloudStack Infrastructure Support<http://shapeblue.com/cloudstack-infrastructure-support/> offers the best 24/7 SLA for CloudStack Environments.

Apache CloudStack Bootcamp training courses

**NEW!** CloudStack 4.2.1 training<http://shapeblue.com/cloudstack-training/>
18th-19th February 2014, Brazil. Classroom<http://shapeblue.com/cloudstack-training/>
17th-23rd March 2014, Region A. Instructor led, On-line<http://shapeblue.com/cloudstack-training/>
24th-28th March 2014, Region B. Instructor led, On-line<http://shapeblue.com/cloudstack-training/>
16th-20th June 2014, Region A. Instructor led, On-line<http://shapeblue.com/cloudstack-training/>
23rd-27th June 2014, Region B. Instructor led, On-line<http://shapeblue.com/cloudstack-training/>

This email and any attachments to it may be confidential and are intended solely for the use of the individual to whom it is addressed. Any views or opinions expressed are solely those of the author and do not necessarily represent those of Shape Blue Ltd or related companies. If you are not the intended recipient of this email, you must neither take any action based upon its contents, nor copy or show it to anyone. Please contact the sender if you believe you have received this email in error. Shape Blue Ltd is a company incorporated in England & Wales. ShapeBlue Services India LLP is a company incorporated in India and is operated under license from Shape Blue Ltd. Shape Blue Brasil Consultoria Ltda is a company incorporated in Brasil and is operated under license from Shape Blue Ltd. ShapeBlue is a registered trademark.