[jira] [Created] (KAFKA-7053) Spring Kafka SSL producers throwing TimeoutExceptions

["Guido Josquin (JIRA)" <ji...@apache.org>]

Guido Josquin created KAFKA-7053:
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             Summary: Spring Kafka SSL producers throwing TimeoutExceptions
                 Key: KAFKA-7053
                 URL: https://issues.apache.org/jira/browse/KAFKA-7053
             Project: Kafka
          Issue Type: Bug
          Components: producer 
    Affects Versions: 1.0.1
            Reporter: Guido Josquin


# Problem description

Spring Kafka SSL producers are throwing timeouts when producing to a Kafka cluster with 3 brokers. I set up the cluster on Kubernetes according to [https://github.com/Yolean/kubernetes-kafka] , altering only the broker config and services to arrange outside access.

Some observations:

- The SSL configuration seems correct, since messages are sent and received for large periods of time (e.g. hours) before showing intermittent problems. 
- Both the server and clients have plenty of resources left.
- The network is stable and powerful enough (200 mbit, no downtime in the last year).
- The errors do not appear in a PLAINTEXT setup.
- Configurations for the three brokers are identical apart from their broker ID and listeners.
- No errors appear in the broker log or Spring Kafka consumers.

`2018-06-06 11:15:44.103 ERROR 1 --- [ad | producer-1] o.s.k.support.LoggingProducerListener : Exception thrown when sending a message with key='null' and payload='[...redacted...]':
org.apache.kafka.common.errors.TimeoutException: Expiring 1 record(s) for topicname-0: 30001 ms has passed since last append`

# Detailed description

https://stackoverflow.com/questions/50725643/spring-kafka-producers-throwing-timeoutexceptions

# Question

How can I find the cause of this problem?



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