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https://issues.apache.org/jira/browse/KAFKA-2164?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alexey Ozeritskiy updated KAFKA-2164:
-------------------------------------
Attachment: KAFKA-2164.patch
> ReplicaFetcherThread: suspicious log message on reset offset
> ------------------------------------------------------------
>
> Key: KAFKA-2164
> URL: https://issues.apache.org/jira/browse/KAFKA-2164
> Project: Kafka
> Issue Type: Bug
> Affects Versions: 0.8.2.1
> Reporter: Alexey Ozeritskiy
> Attachments: KAFKA-2164.patch
>
>
> If log.logEndOffset < leaderStartOffset the follower resets its offset and
> prints the following:
> {code}
> [2015-03-25 11:11:08,975] WARN [ReplicaFetcherThread-0-21], Replica 30 for
> partition [topic,11] reset its fetch offset from 49322124 to current leader
> 21's start offset 49322124 (kafka.server.ReplicaFetcherThread)
> [2015-03-25 11:11:08,976] ERROR [ReplicaFetcherThread-0-21], Current offset
> 54369274 for partition [topic,11] out of range; reset offset to 49322124
> (kafka.server.ReplicaFetcherThread)
> {code}
> I think the right message should be:
> {code}
> [2015-03-25 11:11:08,975] WARN [ReplicaFetcherThread-0-21], Replica 30 for
> partition [rt3.iva--yandex--access-log,11] reset its fetch offset from
> 54369274 to current leader 21's start offset 49322124
> (kafka.server.ReplicaFetcherThread)
> [2015-03-25 11:11:08,976] ERROR [ReplicaFetcherThread-0-21], Current offset
> 54369274 for partition [rt3.iva--yandex--access-log,11] out of range; reset
> offset to 49322124 (kafka.server.ReplicaFetcherThread)
> {code}
> This occurs because ReplicaFetcherThread resets the offset and then print log
> message.
> Posible solution:
> {code}
> diff --git a/core/src/main/scala/kafka/server/ReplicaFetcherThread.scala
> b/core/
> index b31b432..181cbc1 100644
> --- a/core/src/main/scala/kafka/server/ReplicaFetcherThread.scala
> +++ b/core/src/main/scala/kafka/server/ReplicaFetcherThread.scala
> @@ -111,9 +111,9 @@ class ReplicaFetcherThread(name:String,
> * Roll out a new log at the follower with the start offset equal to
> the
> */
> val leaderStartOffset =
> simpleConsumer.earliestOrLatestOffset(topicAndPar
> - replicaMgr.logManager.truncateFullyAndStartAt(topicAndPartition,
> leaderSt
> warn("Replica %d for partition %s reset its fetch offset from %d to
> curre
> .format(brokerConfig.brokerId, topicAndPartition,
> replica.logEndOffset.
> + replicaMgr.logManager.truncateFullyAndStartAt(topicAndPartition,
> leaderSt
> leaderStartOffset
> }
> }
> {code}
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