[ http://issues.apache.org/jira/browse/GERONIMO-2163?page=all ]
Gianny Damour updated GERONIMO-2163:
------------------------------------
Attachment: geronimo-wadi-integration-RTC.patch
Patch for RTC.
> WADI Integration for Jetty
> --------------------------
>
> Key: GERONIMO-2163
> URL: http://issues.apache.org/jira/browse/GERONIMO-2163
> Project: Geronimo
> Issue Type: New Feature
> Security Level: public(Regular issues)
> Components: Clustering
> Reporter: Gianny Damour
> Assigned To: Gianny Damour
> Priority: Minor
> Attachments: geronimo-wadi-integration-preview.patch,
> geronimo-wadi-integration-RTC.patch, geronimo.patch,
> wadi-geronimo-integration-preview.patch, wadi.patch
>
>
> Email sent to the dev@ list.
> Hi,
> I have been working on a second integration attempt of WADI and I am posting
> here a high-level description of the current state of progress such that
> people can jump in.
> At this stage, this is a Jetty only attempt and I do believe that the same
> approach can be applied for Tomcat. The current integration provides (very
> unreliable) HttpSession state migration. It only works for a single
> Web-application; more effort is required on the WADI side to support multiple
> Web-applications and this will not impact the integration piece of code. I
> (more or less successfully) tested the integration with mod_proxy +
> mod_proxy_balancer and mod_proxy + mod_rewrite in front of three Geronimo
> servers running the WADI demo web-app.
> The code changes are:
> * new module to capture some clustering contracts - geronimo-clustering:
> there Node, SessionManager, Session and ClusteredInvocation are defined.
> * new module to provide a WADI implementation of the above -
> geronimo-clustering-wadi;
> * new module to capture clustering builder contracts -
> geronimo-clustering-builder: there is only one interesting interface
> JettyClusteringBuilder. This later defines a couple of methods to augment the
> environment of a Web module being built and add clustering specific GBeans;
> * new module to provide a WADI implementation of the above -
> Geronimo-clustering-builder-wadi; and
> * geronimo-jetty-builder and geronimo-jetty are impacted to hook in
> clustering. These two modules depend on geronimo-clustering and
> geronimo-clustering-builder and not on WADI specific modules.
> Two new modules are added:
> * jetty-clustering- wadi: this module defines default WADI GBeans such as
> Dispatcher, ReplicationManagerFactory, BackingStrategyFactory et cetera; and
> * jetty-clustering-builder-wadi: this module defines a builder to process
> Jetty DD and add various GBeans to the module being built.
> I think that the implementation is flexible enough to plug in another
> clustering implementation such as Kache.
> As a matter of fact, there are some severe reliability (e.g. locking issues)
> and integration (only one Web-app can be clustered) issues, which need to be
> fixed. So, this work is not yet ready to be RTC voted. Having said that, I
> have opened a JIRA such that people can have a look to the integration.
> Thanks,
> Gianny
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