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From Christopher Schultz <ch...@christopherschultz.net>
Subject Re: parallel deployment activation of new version
Date Thu, 19 Apr 2012 16:21:22 GMT
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Christoph,

On 4/19/12 2:34 AM, Christoph Maser wrote:
> Well the idea is to have additional saftey measures that check if
> the webapp is in the desired state after the context is started.
> This is done by sending queries against the webapp for standard
> pages or debug/health-status pages that the webapp provides.

What about the webapp itself performing its own health-check as a last
step of deployment, and throwing an exception (thereby preventing
Tomcat from bringing it into service) if things aren't in working order?

That would seem to be easier than re-working Tomcat to allow *true*
parallel deployment where the client gets to pick the version of the
webapp to contact.

- -chris
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