Tanmoy created NIFI-4596:
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Summary: The FetchDistributedMapCache processor should read the
flowfile attributes from the previous processor
Key: NIFI-4596
URL: https://issues.apache.org/jira/browse/NIFI-4596
Project: Apache NiFi
Issue Type: Improvement
Components: Extensions
Affects Versions: 1.2.0
Environment: Nifi running on a 3-node cluster. OS - CentOS
Reporter: Tanmoy
Priority: Minor
The FetchDistributedMapCache processor should read the flowfile attributes from
the previous processor. In that case, we can configure which Cache Entry
Identifier to read from. Right now, the processor accepts only static labels.
Hence, it cannot be used in a framework where we would like to have the input
source name in the Cache Identifier. The PutDistributedMapCache does not have
any such restricition.
Current usecase: I am reading my config from HDFS and each time a flow file
appears in SFTP server, I ingest them using my framework. Processing time can
be improved if I used the cache. But, the FetchDistributedMapCache is not
configured to accept flowfile attributes as Cache Identifier. This limits its
usage as Filenames vary everytime.
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