akka/akka — pull request #1751 by krasserm (2013-10-03 08:11:31+00:00)
Title: +per #3641 Storage plugin API

- Journal plugin API for storage backends with asynchronous client API (default impl: in-memory journal)
- Journal plugin API for storage backends with synchronous client API (default impl: LevelDB journal)
- Snapshot store plugin API (default impl: local filesystem snapshot store)

Further additions:

- Processors are notified about journaling failures