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https://issues.apache.org/jira/browse/NIFI-3488?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Peter Wicks reassigned NIFI-3488:
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Assignee: Peter Wicks
> Add LocalMapCacheService
> ------------------------
>
> Key: NIFI-3488
> URL: https://issues.apache.org/jira/browse/NIFI-3488
> Project: Apache NiFi
> Issue Type: Improvement
> Components: Extensions
> Reporter: Koji Kawamura
> Assignee: Peter Wicks
>
> Currently we have DistributedMapCacheClientService to share values among
> different processors across NiFi nodes. However it can be an extravagance if
> users would like to use the cache only for sharing values locally within a
> node instead of cluster wide.
> LocalMapCacheService can be useful in that cases, provides benefits such as,
> being able to use existing Processors those use DistributedMapCacheClient, no
> need to transfer data over network, don't have to worry about cache key
> collision ... etc.
> The implementation can be as simple as having a Map on heap. Optionally
> persist MapEntries to local filesystem.
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