Chinmay Soman created SAMZA-424:
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             Summary: Add a Cache state API to the Samza container
                 Key: SAMZA-424
                 URL: https://issues.apache.org/jira/browse/SAMZA-424
             Project: Samza
          Issue Type: New Feature
          Components: container
            Reporter: Chinmay Soman
            Assignee: Chinmay Soman


There are cases when the user code needs access to a 'cache' which can be used 
to store custom data. This cache is different from the KeyValue store in the 
following ways:
* At the very least Needs to support LRU (Least Recently Used) and TTL (Time To 
Live) eviction strategies
* May not support all() and range() operations (since this wreaks havoc with 
the eviction operation)
* Needs to exist at a per task or a per container level.



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