Darshan Mehta created KAFKA-7629:
------------------------------------
Summary: Mirror maker goes into infinite loop
Key: KAFKA-7629
URL: https://issues.apache.org/jira/browse/KAFKA-7629
Project: Kafka
Issue Type: Bug
Components: mirrormaker
Affects Versions: 2.0.0
Environment: local
Reporter: Darshan Mehta
*Setup:*
I have 2 kafka images running (Spoify Kafka image :
[https://hub.docker.com/r/spotify/kafka/)]
Config:
Image 1:
* host: kafka1
* zk port : 2181
* broker port : 9092
Image 2:
* host: kafka2
* zk port : 1181
* broker port : 8092
Producer Properties for Mirror maker:
{code:java}
bootstrap.servers=kafka2:8092
{code}
Consumer Properties for Mirror maker:
{code:java}
bootstrap.servers=kafka1:9092
group.id=test-consumer-group
exclude.internal.topics=true
{code}
*Steps to replicate :*
# Start mirror maker with following command :
{code:java}
$KAFKA_INSTALLATION_DIR/bin/kafka-mirror-maker.sh --producer.config
<producer_config_location> --consumer.config <consumer_config_location>
--num.streams 1 --whitelist topic-1
{code}
# Start local kafka console consumer to listen to topic-1 for kafka2:8092
{code:java}
$KAFKA_INSTALLATION_DIR/bin/kafka-console-consumer.sh --bootstrap-server
kafka2:8092 --topic topic-1
{code}
# Produce an event to kafka1:9092 - topic-1 -> It will be printed on the
console in Step 2
# Stop mirror maker with ctrl+C (started in step 1)
# Restart mirror maker with same command
# Produce an event onto the same topic (i.e. repeat step 3)
# Both source and destination will be flooded with the same messages until
mirror maker is stopped
Surprisingly, source kafka also gets flooded with the same message. I believe
when restarted, the mirror maker is unable to read the state?
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
