Apurva Mehta created KAFKA-5375:
-----------------------------------
Summary: Transactions: Concurrent transactional consumer loses
messages when there are broker bounces
Key: KAFKA-5375
URL: https://issues.apache.org/jira/browse/KAFKA-5375
Project: Kafka
Issue Type: Bug
Reporter: Apurva Mehta
Assignee: Apurva Mehta
Priority: Blocker
Fix For: 0.11.0.0
With the system test modifications in KAFKA-5366, the concurrent reader almost
always consumes a fraction of the expected messages when there are broker
bounces. A consumer running without concurrent writes consumes all the messages
from the topic in question in the same test.
{noformat}
================================================================================
test_id:
kafkatest.tests.core.transactions_test.TransactionsTest.test_transactions.failure_mode=clean_bounce.bounce_target=brokers
status: FAIL
run time: 1 minute 59.169 seconds
Input and concurrently consumed output message sets are not equal. Num
input messages: 20000. Num concurrently_consumed_messages: 0
Traceback (most recent call last):
File
"/usr/local/lib/python2.7/dist-packages/ducktape/tests/runner_client.py", line
123, in run
data = self.run_test()
File
"/usr/local/lib/python2.7/dist-packages/ducktape/tests/runner_client.py", line
176, in run_test
return self.test_context.function(self.test)
File "/usr/local/lib/python2.7/dist-packages/ducktape/mark/_mark.py", line
321, in wrapper
return functools.partial(f, *args, **kwargs)(*w_args, **w_kwargs)
File "/opt/kafka-dev/tests/kafkatest/tests/core/transactions_test.py", line
238, in test_transactions
(len(input_message_set), len(concurrently_consumed_message_set))
AssertionError: Input and concurrently consumed output message sets are not
equal. Num input messages: 20000. Num concurrently_consumed_messages: 0
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