Santosh S created KAFKA-7926: -------------------------------- Summary: Issue with Kafka Broker - UnknownServerException Key: KAFKA-7926 URL: https://issues.apache.org/jira/browse/KAFKA-7926 Project: Kafka Issue Type: Bug Components: core Environment: production Reporter: Santosh S
Our application uses `springBootVersion = 2.0.4.RELEASE` along with `compile('io.projectreactor.kafka:reactor-kafka:1.0.1.RELEASE')` dependency. The Kafka Broker that we have is at version `1.0.1`. Intermittently when we send the messages onto Kafka by creating `reactor.kafka.sender.SenderRecord` and in response of Kafka when look for `reactor.kafka.sender.SenderResult.exception()` we have `java.lang.RuntimeException: org.apache.kafka.common.errors.UnknownServerException: The server experienced an unexpected error when processing the request` populated in the exception. Upon retrying couple of times, the messages get through successfully. On the broker logs the below error is being printed multiple times without any stacktrace `[2019-02-08 15:43:07,501] ERROR [ReplicaManager broker=3] Error processing append operation on partition price-promotions-local-event-0 (kafka.server.ReplicaManager) ` where `price-promotions-local-event` is our topic. I have looked online but there is no definitive resolution or ways to triage this issue, many thanks in advance for any help. -- This message was sent by Atlassian JIRA (v7.6.3#76005)