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https://issues.apache.org/jira/browse/KARAF-4685?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15457897#comment-15457897
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Achim Nierbeck commented on KARAF-4685:
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Well the proposed flags are only available from that feature on ... (or better
understood with that version)
BUT ... we have a similar thing already available with the current version of
Pax-Web :-)
> Support session replication through OSGi 6 http whiteboard
> ----------------------------------------------------------
>
> Key: KARAF-4685
> URL: https://issues.apache.org/jira/browse/KARAF-4685
> Project: Karaf
> Issue Type: Improvement
> Components: cellar-http
> Reporter: Roland Hauser
> Assignee: Jean-Baptiste Onofré
>
> Currently, session replication can only be done through specifying the
> Hazelcast filter/listener in the web.xml file of a web-application. This can
> be a serious disadvantage if you also want to install a web-application to
> another web-container which does not need clustering, and, consequently, does
> not contain the Hazelcast libs. In this case, the application won't start.
> I suggest an additional way how session replication could be realized without
> the need of modifying the web-app: it could be done through a Cellar
> component which implements a http whiteboard. I would realize this as follows:
> - Register a Filter/Session listener to the OSGi service registry. Per
> default, every web-application installed is considered for session
> replication.
> - It should be possible to configure Hazelcast filter properties either
> through a config file inside the OSGI-INF folder of the web-app, or, through
> the ConfigAdmin service.
> - If the sessions of a specific web-application should not be replicated,
> then this could be flagged either through a config file inside the OSGI-INF
> folder of the web-app, or, through the ConfigAdmin service.
> - The new Cellar component should be installable as additional feature
> "http-failover"
> What's your opinion?
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