Tudor Scurtu created KAFKA-908:
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Summary: Write duplicate messages during broker failure
Key: KAFKA-908
URL: https://issues.apache.org/jira/browse/KAFKA-908
Project: Kafka
Issue Type: Bug
Components: replication
Affects Versions: 0.8
Reporter: Tudor Scurtu
Assignee: Neha Narkhede
Priority: Minor
Reproduction steps:
1. Start a multi-broker quorum (e.g. 3 brokers)
2. Create a multi-replica topic (e.g. 3 replicas)
3. Start an async performance producer with a fixed number of messages to
produce
4. Force kill a partition leader broker using SIGKILL (no clean shutdown) -
make sure you kill it during actual writes
5. Wait for the producer to stop
6. Read from the topic from the beginning - there will a small amount of
duplicate messages
Reproduction rate: sometimes
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