How to re-deploy an EAR without closing running client connections

fangebault-linagora Oct 3, 2014 4:55 AM

Is there a way to re-deploy an app without causing a service interruption noticeable by end users?

For example, WebLogic implements a feature that transparently deploys the new app alongside the old one,

directs new requests to the new app and wait for old requests to be consumed before definitely removing

the old app.

This feature is best explained here:

1. Re: How to re-deploy an EAR without closing running client connections

wdfink Oct 3, 2014 5:14 AM (in response to fangebault-linagora)

This feature is current not available.
What is possible is to use a cluster with rolling updates.
There is already feature request for "graceful shutdown" where you can disconnect or shutdown a instance and wait for the existing connections / transactions
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