The archival process in Clowder is an optional addon to the already optional RabbitMQ pluginextractor framework.
The definition of "archiving" is left to the implementation of each archival extractor, and "unarchiving" is the exact inverse of that process.
Two archival extractor implementations exist that currently depend on which ByteStorageDriver you are using:
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Configuration Options / Defaults for Clowder
To use the archival feature, the RabbitMQ plugin must be enabled and properly configured.
With the RabbitMQ plugin enabledWithin Clowder, the following defaults are configured in application.conf, but can be overridden by using a custom.conf file:
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The extractor performs whatever operation it deems as "archiving" - for example, copying to S3 or to a network filesystem.
Finally the file is marked as ARCHIVED, and (if configured) the user is given the option to Unarchive the file.
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