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https://issues.apache.org/jira/browse/SAMZA-424?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14164018#comment-14164018
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Chris Riccomini commented on SAMZA-424:
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Another thing that's unclear is how Samza knows which changelog needs to use
when restoring a StorageEngine (in the composition via code paradigm).
> 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
> Attachments: SAMZA-424-Cache-API_0.pdf, SAMZA-424-Cache-API_1.md,
> samza-424-cache-api_1.pdf
>
>
> 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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