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https://issues.apache.org/jira/browse/KAFKA-12333?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
loboxu reassigned KAFKA-12333:
------------------------------
Assignee: loboxu
> KafkaMetadataLog and MockLock should validate that appended epochs are
> monotonically
> ------------------------------------------------------------------------------------
>
> Key: KAFKA-12333
> URL: https://issues.apache.org/jira/browse/KAFKA-12333
> Project: Kafka
> Issue Type: Sub-task
> Components: replication
> Reporter: Jose Armando Garcia Sancio
> Assignee: loboxu
> Priority: Major
>
> Both the MockLog and KafkaMetadataLog should only allow appendAsLeader and
> appendAsFollower with monotonically increasing epochs. In other words the
> following test in KafkaMetadataLogTest should fail:
> {code:java}
> @Test
> def testOutOfOrderEpoch(): Unit = {
> val topicPartition = new TopicPartition("cluster-metadata", 0)
> val log = buildMetadataLog(tempDir, mockTime, topicPartition) val
> recordFoo = new SimpleRecord("foo".getBytes())
> val currentEpoch = 3
> val initialOffset = log.endOffset().offset log.appendAsLeader(
> MemoryRecords.withRecords(initialOffset, CompressionType.NONE,
> currentEpoch, recordFoo),
> currentEpoch
> ) // Out order epoch should throw an exception
> log.appendAsLeader(
> MemoryRecords.withRecords(
> initialOffset + 1, CompressionType.NONE, currentEpoch - 1, recordFoo
> ),
> currentEpoch - 1
> ) log.appendAsFollower(
> MemoryRecords.withRecords(
> initialOffset + 2, CompressionType.NONE, currentEpoch - 2, recordFoo
> )
> )
> } {code}
> The same for MockLogTest.
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