Apoorv Mittal created KAFKA-15813:
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Summary: Improve implementation of client instnce cache
Key: KAFKA-15813
URL: https://issues.apache.org/jira/browse/KAFKA-15813
Project: Kafka
Issue Type: Sub-task
Reporter: Apoorv Mittal
Assignee: Apoorv Mittal
In the current implementation the ClientMetricsManager uses LRU cache but we
should alos support expiring stale clients i.e. client which haven't reported
metrics for a while.
The KIP mentions: This client instance specific state is maintained in broker
memory up to MAX(60*1000, PushIntervalMs * 3) milliseconds and is used to
enforce the push interval rate-limiting. There is no persistence of client
instance metrics state across broker restarts or between brokers
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