Simon Bence created NIFI-8113:
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Summary: Persisting status history
Key: NIFI-8113
URL: https://issues.apache.org/jira/browse/NIFI-8113
Project: Apache NiFi
Issue Type: New Feature
Components: Core Framework
Reporter: Simon Bence
Assignee: Simon Bence
Fix For: 1.13.0
An alternative solution would be useful to replace/extend current in-memory
solution for storing component and node metrics. This is in order to ease heap
usage of NiFi which in case of high amount of processors (10-20k) might be
significant and also to keep system information after shutting down.
The solution should keep the data even if NiFi is stopped running and make it
possible to read it out. It should be optimised for writing data as reading is
much less frequent.
Proposal:
* Hide current implementation behind an interface, making it interchangeable
between the existing and upcoming solutions
* Use QuestDB as backend
* Provide some rollback policy in order to avoid ever-growing database
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