Guido Josquin created KAFKA-7053:

             Summary: Spring Kafka SSL producers throwing TimeoutExceptions
                 Key: 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 
[] , 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 
- 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] : 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

# Question

How can I find the cause of this problem?

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