Rajini Sivaram created KAFKA-6546:
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Summary: Add ENDPOINT_NOT_FOUND_ON_LEADER error code for missing
listener
Key: KAFKA-6546
URL: https://issues.apache.org/jira/browse/KAFKA-6546
Project: Kafka
Issue Type: Improvement
Components: core
Reporter: Rajini Sivaram
Assignee: Rajini Sivaram
Fix For: 1.2.0
In 1,1, if an endpoint is available on the broker processing a metadata
request, but the corresponding listener is not available on the leader of a
partition, LEADER_NOT_AVAILABLE is returned (earlier versions returned
UNKNOWN_SERVER_ERROR). This could indicate broker misconfiguration where some
brokers are not configured with all listeners or it could indicate a transient
error when listeners are dynamically added, We want to treat the error as a
transient error to process dynamic updates, but we should notify clients of the
actual error. This change should be made when MetadataRequest version is
updated so that LEADER_NOT_AVAILABLE is returned to older clients.
See
[https://cwiki.apache.org/confluence/display/KAFKA/KIP-226+-+Dynamic+Broker+Configuration]
and [https://github.com/apache/kafka/pull/4539] for details.
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