David Handermann created NIFI-11245:
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Summary: Reducing Maximum Timer Driven Thread Count Requires
Restarting
Key: NIFI-11245
URL: https://issues.apache.org/jira/browse/NIFI-11245
Project: Apache NiFi
Issue Type: Bug
Components: Core Framework
Affects Versions: 1.20.0
Reporter: David Handermann
Assignee: David Handermann
The {{Maximum Timer Driven Thread Count}} property in NiFi Controller Settings
specifies the total number of Threads that can be spawned and scheduled to run
Processors using the default Timer Driven strategy. This setting can be changed
on a running system, but reducing the number requires restarting NiFi to apply
the changes.
The method responsible for updating the internal Thread Pool size does not
allow reducing the core pool size at runtime, which also blocks reducing the
Maximum Count below the default value of 10.
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