Alexey Ozeritskiy created KAFKA-2164:
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Summary: 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
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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