Colin McCabe created KAFKA-19294:
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Summary: Fix BrokerLifecycleManager RPC timeouts
Key: KAFKA-19294
URL: https://issues.apache.org/jira/browse/KAFKA-19294
Project: Kafka
Issue Type: Bug
Reporter: Colin McCabe
Assignee: Colin McCabe
Previously, we could wait for up to half of the broker session timeout for an
RPC to complete, and then delay by up to half of the broker session timeout.
When taken together, these two delays could lead to brokers erroneously missing
heartbeats.
This change removes exponential backoff for heartbeats sent from the broker to
the controller. The load caused by heartbeats is not heavy, and controllers
can easily time out heartbeats when the queue length is too long. Additionally,
we now set the maximum RPC time to the length of the broker period. This
minimizes the impact of heavy load.
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