Mark Payne created NIFI-5241:
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Summary: When calculating stats for components, use synchronized
methods instead of atomic variables
Key: NIFI-5241
URL: https://issues.apache.org/jira/browse/NIFI-5241
Project: Apache NiFi
Issue Type: Improvement
Components: Core Framework
Reporter: Mark Payne
Assignee: Mark Payne
Currently, the EventSumValue that is used to calculate stats for components,
such as bytes in, bytes out, etc. using AtomicLong's and AtomicInteger's, etc
to keep track of values. This made sense at first when there were only a few
stats. Now, however, they hold about 17 different values and the atomic updates
/ atomic reads are more expensive than a synchronized method would be. This can
cause sluggishness in the UI after the instance has been running for a while,
especially if there are a lot of processors.
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