Greg Harris created KAFKA-10295:
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Summary: ConnectDistributedTest.test_bounce should wait for
graceful stop
Key: KAFKA-10295
URL: https://issues.apache.org/jira/browse/KAFKA-10295
Project: Kafka
Issue Type: Test
Components: KafkaConnect
Affects Versions: 2.4.1, 2.5.0, 2.3.1, 2.6.0
Reporter: Greg Harris
Assignee: Greg Harris
In ConnectDistributedTest.test_bounce, there are flakey failures that appear to
follow this pattern:
# The test is parameterized for hard bounces, and with Incremental Cooperative
Rebalancing enabled (does not appear for protocol=eager)
# A source task is on a worker that will experience a hard bounce
# The source task has written records which it has not yet committed in source
offsets
# The worker is hard-bounced, and the source task is lost
# Incremental Cooperative Rebalance starts it's
scheduled.rebalance.max.delay.ms delay before recovering the task
# The test ends, connectors and Connect are stopped
# The test verifies that the sink connector has only written records that have
been committed by the source connector
# This verification fails because the source offsets are stale, and there are
un-committed records in the topic, and the sink connector has written at least
one of them.
This can be addressed by ensuring that the test waits for the rebalance delay
to expire, and for the lost task to recover and commit offsets past the
progress it made before the bounce.
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