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Fedora uses this feature to provide "instant ingest", where you can stage content on a filesystem, initiate an ingest into Fedora, and while that process occurs, Fedora can still serve up the content directly from the filesystem.
See also:
Infinispan
Infinispan is the storage subsystem used by Modeshape for storing object structure, and (optionally) binary content. It supports cluster-based scale out and high availability, data persistence into a variety of CacheStore architectures (filesystem, JDBC database, Amazon S3), and distributed execution (including but not limited to e.g. Map/Reduce).
Fedora 4 ships with a handful of example Infinispan configurations to get up and running quickly.
file | no-frills, FileCacheStore backed |
clustered | a trivial, cluster-ready example; replicates metadata, distributes 2 copies of content |
leveldb-default | a leveldb backed metadata store (that's really fast) |
leveldb | a leveldb backed metadata store, with separate caches for resource, properties, and binaries |
ram | an in-RAM-only cache store for testing |
See also:
Introduction
How-Tos
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