Li Wang created ZOOKEEPER-4289:
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Summary: Reduce the performance impact of Prometheus metrics
Key: ZOOKEEPER-4289
URL: https://issues.apache.org/jira/browse/ZOOKEEPER-4289
Project: ZooKeeper
Issue Type: Improvement
Components: metric system
Affects Versions: 3.6.2, 3.7.0, 3.6.3, 3.8.0, 3.7.1
Reporter: Li Wang
I have done load comparison tests for Prometheus enabled vs disabled and found
the performance is reduced about 40%-60% for both read and write operations
(i.e. getData, getChildren and createNode).
Looked more into this and found that Prometheus Summary is very expensive and
there are more than 20 Summary metrics added to the new CommitProcessor.
Need a solution to reduce the impact of Prometheus metrics.
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