Lucas Wang created KAFKA-7180:
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Summary: In testHWCheckpointWithFailuresSingleLogSegment, wait
until server1 has joined the ISR before shutting down server2
Key: KAFKA-7180
URL: https://issues.apache.org/jira/browse/KAFKA-7180
Project: Kafka
Issue Type: Bug
Reporter: Lucas Wang
Assignee: Lucas Wang
In the testHWCheckpointWithFailuresSingleLogSegment method, the test logic is
1. shutdown server1 and then capture the leadership of a partition in the
variable "leader", which should be server2
2. shutdown server2 and wait until the leadership has changed to a broker other
than server2
through the line
waitUntilLeaderIsElectedOrChanged(zkClient, topic, partitionId, oldLeaderOpt =
Some(leader))
However when we execute step 2 and shutdown server2, it's possible that server1
has not caught up with the partition, and has not joined the ISR. With unclean
leader election turned off, the leadership cannot be transferred to server1,
causing the waited condition in step 2 to be never met.
The obvious fix is to wait until server1 has joined the ISR before shutting
down server2.
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