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https://issues.apache.org/jira/browse/KAFKA-573?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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John Fung updated KAFKA-573:
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Attachment: acks1_leader_failure_data_loss.tar.gz
> System Test : Leader Failure Data Loss When request-num-acks is 1
> -----------------------------------------------------------------
>
> Key: KAFKA-573
> URL: https://issues.apache.org/jira/browse/KAFKA-573
> Project: Kafka
> Issue Type: Bug
> Reporter: John Fung
> Attachments: acks1_leader_failure_data_loss.tar.gz,
> kafka-573-reproduce-issue.patch
>
>
> • Test Description:
> 1. Start a 3-broker cluster as source
> 2. Send messages to source cluster
> 3. Find leader and terminate it (kill -15)
> 4. Start the broker again
> 5. Start a consumer to consume data
> 6. Compare the MessageID in the data between producer log and consumer log.
> • Issue: There will be data loss if request-num-acks is set to 1.
> • To reproduce this issue, please do the followings:
> 1. Download the latest 0.8 branch
> 2. Apply the patch attached to this JIRA
> 3. Build kafka by running "./sbt update package"
> 4. Execute the test in directory "system_test" : "python -B
> system_test_runner.py"
> 5. This test will execute testcase_2 with the following settings:
> Replica factor : 3
> No. of partitions : 1
> No. of bouncing : 1
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