[jira] [Updated] (KAFKA-7927) Old command line tools should notify user when unsupported isolation-level parameter provided

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

     [ https://issues.apache.org/jira/browse/KAFKA-7927?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gabor Somogyi updated KAFKA-7927:
---------------------------------
    Summary: Old command line tools should notify user when unsupported isolation-level parameter provided  (was: Read committed receives aborted events)

> Old command line tools should notify user when unsupported isolation-level parameter provided
> ---------------------------------------------------------------------------------------------
>
>                 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
>            Priority: Blocker
>         Attachments: KafkaProducer.scala, consumer.log, producer.log.gz
>
>
> 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.
> The whole application can be found here: https://github.com/gaborgsomogyi/kafka-semantics-tester



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