[jira] [Created] (KAFKA-7927) Read committed receives aborted events

["Gabor Somogyi (JIRA)" <ji...@apache.org>]

Gabor Somogyi created KAFKA-7927:
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             Summary: Read committed receives aborted events
                 Key: KAFKA-7927
                 URL: https://issues.apache.org/jira/browse/KAFKA-7927
             Project: Kafka
          Issue Type: Bug
          Components: consumer, core, producer 
    Affects Versions: 1.0.0
            Reporter: Gabor Somogyi


When a kafka client produces ~30k events and at the end it aborts the transaction a consumer can read part of the aborted messages when "isolation.level" set to "READ_COMMITTED".

Kafka client version: 2.0.0
Kafka broker version: 1.0.0
Producer:
{code:java}
java -jar kafka-producer/target/kafka-producer-0.0.1-SNAPSHOT-jar-with-dependencies.jar gsomogyi-cdh5144-220cloudera2-1.gce.cloudera.com:9092 src-topic
{code}
See attached code.
Consumer:
{code:java}
kafka-console-consumer --zookeeper localhost:2181 --topic src-topic --from-beginning --isolation-level read_committed
{code}
Same behavior seen when re-implemented the consumer in scala.



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