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https://issues.apache.org/jira/browse/SLING-3816?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tommaso Teofili resolved SLING-3816.
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Resolution: Fixed
> Use the same flow of operations for forward and reverse replication
> -------------------------------------------------------------------
>
> Key: SLING-3816
> URL: https://issues.apache.org/jira/browse/SLING-3816
> Project: Sling
> Issue Type: Improvement
> Components: Replication
> Reporter: Marius Petria
> Assignee: Tommaso Teofili
> Attachments: SLING-3816.patch
>
>
> Current replication code treats differently the forward and reverse
> replication. Forward replication creates a content package, adds it to a
> queue and transports it to the other instance while reverse replication
> creates a dummy POLL package, transports it to the other instance, retrieves
> the result queues it and then installs it in the current instance.
> The current flow for reverse replication complicates the code structure and
> can be simplified by using three main entities:
> 1. Package Importers: can import(install) a replication package
> 1.a ReplicationPackageImporter
> 1.b ReplicationPackageImporterServlet bound to replication/importer resource
> type
> 1.c http://localhost:4502/libs/sling/replication/importers.json
> 2. Package Exporters - can export (create) a replication package
> 2.a ReplicationPackageExporter
> 2.b ReplicationPackageExporterServlet bound to replication/exporter resource
> type
> 2.c http://localhost:4502/libs/sling/replication/exporters.json
> 3. Replication Agents - coordinate the interaction between an exporter and an
> importer using the following flow: exports a package, adds it to a queue, and
> the imports the package.
> 3.a ReplicationAgent
> 3.b ReplicationAgentServlet bound to replication/agent resource type
> 3.c http://localhost:4502/libs/sling/replication/agents.json
> Basically for forward replication the exporter is local and the importer is
> remote while for reverse replication the difference is that the exporter is
> remote and the importer is local.
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