[chef] Re: Simultaneous software upgrade on multiple nodes

[Brad Knowles < >]

On Oct 22, 2011, at 3:10 AM, Anton Koldaev wrote:

> Let's imagine we have 50 servers with and a distributed web application and 
> we need to upgrade software on all of them. New software requires downtime 
> while upgrade.
> If upgrade is performed simultaneously on all servers the application will 
> be totally unavailable for this time. How to avoid it?

I don't have personal experience with it, but other Chef experts I've heard 
have talked about using "rundeck" to handle the orchestration of things like 
this.  I would be very interested to hear what your thoughts would be on this 
software.

-- 
Brad Knowles 
<
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SAGE Level IV, Chef Level 0.0.1