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From Joe Mészáros (JIRA) <>
Subject [jira] [Created] (NIFI-988) PutDistributedMapCache processor
Date Wed, 23 Sep 2015 11:13:04 GMT
Joe Mészáros created NIFI-988:

             Summary: PutDistributedMapCache processor
                 Key: NIFI-988
             Project: Apache NiFi
          Issue Type: New Feature
          Components: Core Framework
            Reporter: Joe Mészáros
            Priority: Minor

There is a standard controller service, called DistributedMapCacheServer, which provides a
distributed cache, and an associated DistributedMapCacheClientService to interact with the
cache. But there is not any standard processor, which puts data into the cache, and helps
the user to leverage the distributed cache capabilities.

The purpose of PutDistributedMapCache is very similar to the egress processors: it gets the
content of a FlowFile and puts it to a distributed map cache, using a cache key computed from
FlowFile attributes. If the cache already contains the entry and the cache update strategy
is 'keep original' the entry is not replaced.

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