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<a href="http://community.jboss.org/index.jspa" style="text-decoration: none; color: #E1E1E1">JBoss Community</a></h1>
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Re: AS 7 Deployment APIs
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created by <a href="http://community.jboss.org/people/bstansberry%40jboss.com">Brian Stansberry</a> in <i>JBoss AS7 Development</i> - <a href="http://community.jboss.org/message/561145#561145">View the full discussion</a>
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<div class="jive-rendered-content"><p>I want to simplify the rollback handling a bit.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Right now there are a number levels at which a user can specify that they want rollback in case of failure:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>1) At the level of an individual action within a larger set of actions (Example: my plan deploys 3 apps, and if #2 fails I want it rolled back, but don't roll back #1 or #3)</p><p>2) Within a set of actions that apply to a server. If any action in the set fails, all roll back. For a standalone server, this is specified with the withGlobalRollback() call shown above.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>And, for the domain controller use case only (irrelevant to standalone server case):</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>3) For a set of servers in a server group, whether failure on one or more trigger rollback across the group.</p><p>4) For a set of servers groups to which the same set of changes is being applied, whether failure of one server group triggers rollback of the others. (Example: multiple servers running same app, divided into multiple server groups to facilitate a rolling upgrade)</p><p>5) For a large complex plan where different sets of changes are applied to different server groups, whether failure of one set triggers rollbacks of other sets. (Example: in a multi-tier topology, roll out some deployments to server-groups in tier A, and then roll out different deployments to servers in tier B.)</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I want to get rid of 1). It complicates the implementation and I don't think it adds a lot of benefit. If people want different behavior for different deployments, they can be executed separately without much trouble.</p></div>
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