Randy Gelhausen created MINIFI-112:
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Summary: Support UpdateAttribute for nifi-minifi-cpp
Key: MINIFI-112
URL: https://issues.apache.org/jira/browse/MINIFI-112
Project: Apache NiFi MiNiFi
Issue Type: Bug
Components: C++, Core Framework
Reporter: Randy Gelhausen
nifi-minifi-cpp agents can generate multiple "streams" of flowfiles.
For instance, to monitor a host, nifi-minifi-cpp runs nmon, ps, netstat, and
gathers logfiles from applications.
But, for a given flowfile, any downstream NiFi collectors wont have visibility
into the originating hostname, nor metadata about which "stream"
(ExecuteProcess(nmon), ExecuteProcess(ps), TailFile(app1), TailFile(app2))
generated it.
One solution is to use a separate InputPort for each stream. This works, but
burdens both the team working on agent flows, and the team managing the
collector- they have to be in concert.
A simpler (better?) approach is to allow agent teams to tag flowfiles with
differentiating metadata via use of UpdateAttribute.
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