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https://issues.apache.org/jira/browse/KAFKA-572?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13475535#comment-13475535
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John Fung commented on KAFKA-572:
---------------------------------
* 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 shortly
5. Start a consumer to consume data
6. Compare the MessageID in the data between producer log and consumer log.
* 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"
* Output from the test - No data loss but merged log segment checksums
mismatched
2012-10-12 22:27:35,760 - INFO -
======================================================
2012-10-12 22:27:35,760 - INFO - validating data matched
2012-10-12 22:27:35,760 - INFO -
======================================================
2012-10-12 22:27:35,771 - INFO - no. of unique messages on topic [test_1] sent
from publisher : 500 (kafka_system_test_utils)
2012-10-12 22:27:35,771 - INFO - no. of unique messages on topic [test_1]
received by consumer : 500 (kafka_system_test_utils)
2012-10-12 22:27:35,771 - INFO -
================================================
2012-10-12 22:27:35,771 - INFO - validating merged broker log segment checksums
2012-10-12 22:27:35,771 - INFO -
================================================
{u'kafka_server_1_logs:test_1-0': 'd70c8d37634b0b08cd407eb042e77ef8',
u'kafka_server_2_logs:test_1-0': 'd70c8d37634b0b08cd407eb042e77ef8',
u'kafka_server_3_logs:test_1-0': '924d30d5f0d2a8ba9ef45f7cba88e192'}
2012-10-12 22:27:35,774 - ERROR - merged log segment checksum in test_1-0
mismatched (kafka_system_test_utils)
> Merged log segment checksums mismatched in Leader failure System Test case
> --------------------------------------------------------------------------
>
> Key: KAFKA-572
> URL: https://issues.apache.org/jira/browse/KAFKA-572
> Project: Kafka
> Issue Type: Bug
> Reporter: John Fung
> Attachments: kafka-572-reproduce-issue.patch
>
>
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