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https://issues.apache.org/jira/browse/KAFKA-3795?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15900450#comment-15900450
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Apurva Mehta commented on KAFKA-3795:
-------------------------------------
Another instance: https://testbreak.confluent.io/kiosk/test_result?id=30370
> Transient system test failure upgrade_test.TestUpgrade
> ------------------------------------------------------
>
> Key: KAFKA-3795
> URL: https://issues.apache.org/jira/browse/KAFKA-3795
> Project: Kafka
> Issue Type: Bug
> Components: system tests
> Reporter: Jason Gustafson
> Labels: reliability
>
> From a recent build running on the 0.10.0 branch:
> {code}
> test_id:
> 2016-06-06--001.kafkatest.tests.core.upgrade_test.TestUpgrade.test_upgrade.from_kafka_version=0.9.0.1.to_message_format_version=0.9.0.1.compression_types=.snappy.new_consumer=True
> status: FAIL
> run time: 3 minutes 29.166 seconds
> 3522 acked message did not make it to the Consumer. They are: 476524,
> 476525, 476527, 476528, 476530, 476531, 476533, 476534, 476536, 476537,
> 476539, 476540, 476542, 476543, 476545, 476546, 476548, 476549, 476551,
> 476552, ...plus 3482 more. Total Acked: 110437, Total Consumed: 127470. The
> first 1000 missing messages were validated to ensure they are in Kafka's data
> files. 1000 were missing. This suggests data loss. Here are some of the
> messages not found in the data files: [477184, 477185, 477187, 477188,
> 477190, 477191, 477193, 477194, 477196, 477197]
> Traceback (most recent call last):
> File
> "/var/lib/jenkins/workspace/system-test-kafka-0.10.0/kafka/venv/local/lib/python2.7/site-packages/ducktape-0.5.1-py2.7.egg/ducktape/tests/runner.py",
> line 106, in run_all_tests
> data = self.run_single_test()
> File
> "/var/lib/jenkins/workspace/system-test-kafka-0.10.0/kafka/venv/local/lib/python2.7/site-packages/ducktape-0.5.1-py2.7.egg/ducktape/tests/runner.py",
> line 162, in run_single_test
> return self.current_test_context.function(self.current_test)
> File
> "/var/lib/jenkins/workspace/system-test-kafka-0.10.0/kafka/venv/local/lib/python2.7/site-packages/ducktape-0.5.1-py2.7.egg/ducktape/mark/_mark.py",
> line 331, in wrapper
> return functools.partial(f, *args, **kwargs)(*w_args, **w_kwargs)
> File
> "/var/lib/jenkins/workspace/system-test-kafka-0.10.0/kafka/tests/kafkatest/tests/core/upgrade_test.py",
> line 113, in test_upgrade
> self.run_produce_consume_validate(core_test_action=lambda:
> self.perform_upgrade(from_kafka_version,
> File
> "/var/lib/jenkins/workspace/system-test-kafka-0.10.0/kafka/tests/kafkatest/tests/produce_consume_validate.py",
> line 79, in run_produce_consume_validate
> raise e
> AssertionError: 3522 acked message did not make it to the Consumer. They are:
> 476524, 476525, 476527, 476528, 476530, 476531, 476533, 476534, 476536,
> 476537, 476539, 476540, 476542, 476543, 476545, 476546, 476548, 476549,
> 476551, 476552, ...plus 3482 more. Total Acked: 110437, Total Consumed:
> 127470. The first 1000 missing messages were validated to ensure they are in
> Kafka's data files. 1000 were missing. This suggests data loss. Here are some
> of the messages not found in the data files: [477184, 477185, 477187, 477188,
> 477190, 477191, 477193, 477194, 477196, 477197]
> {code}
> Here's a link to the test data:
> http://testing.confluent.io/confluent-kafka-0-10-0-system-test-results/?prefix=2016-06-06--001.1465234069--apache--0.10.0--6500b53/
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