John Fung created KAFKA-567:
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Summary: Replication Data Loss in Mirror Maker Bouncing testcase
Key: KAFKA-567
URL: https://issues.apache.org/jira/browse/KAFKA-567
Project: Kafka
Issue Type: Bug
Reporter: John Fung
Attachments: kafka-mirror-maker-bouncing-data-loss.patch
* 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"
* The test result may look like the following:
_test_case_name : testcase_5002
_test_class_name : MirrorMakerTest
arg : bounce_leader : false
arg : bounce_mirror_maker : true
arg : message_producing_free_time_sec : 15
arg : num_iteration : 1
arg : num_messages_to_produce_per_producer_call : 50
arg : num_partition : 1
arg : replica_factor : 3
arg : sleep_seconds_between_producer_calls : 1
validation_status :
Log segment checksum matching across all replicas : FAILED
Unique messages from consumer on [test_1] : 355
Unique messages from producer on [test_1] : 400
Validate for data matched on topic [test_1] : FAILED
* Attached a tar file for the system test output log, the brokers' log4j files
and data log segment files.
* There are no unusual Exception / Error found in the logs. However, there are
consistently data loss in this Mirror Maker bouncing test case. Not sure if
this is related to KAFKA-552.
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