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Posted to oak-issues@jackrabbit.apache.org by "Thomas Mueller (JIRA)" <ji...@apache.org> on 2013/02/12 17:41:13 UTC

[jira] [Created] (OAK-619) Lock-free MongoMK implementation

Thomas Mueller created OAK-619:
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             Summary: Lock-free MongoMK implementation
                 Key: OAK-619
                 URL: https://issues.apache.org/jira/browse/OAK-619
             Project: Jackrabbit Oak
          Issue Type: Bug
          Components: mongomk
            Reporter: Thomas Mueller
            Assignee: Thomas Mueller


The current MongoMK implementation has some disadvantages we would like to address:

- some of the collections can't be sharded easily
- instances synchronize on the "sync" collection
- concurrent changes to the same node are detected relatively late,
  and merging them requires a re-try

To address those issues, we will write a prototype of a MongoMK implementation that uses a different storage model, that is, only one "nodes" collection.

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