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https://issues.apache.org/jira/browse/KAFKA-635?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13505222#comment-13505222
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Jun Rao commented on KAFKA-635:
-------------------------------
Chris,
Thanks for reporting this. Do you really need to turn on debug level logging?
The extra logging that you showed is at WARN level.
> Producer error when trying to send not displayed unless in DEBUG logging level
> ------------------------------------------------------------------------------
>
> Key: KAFKA-635
> URL: https://issues.apache.org/jira/browse/KAFKA-635
> Project: Kafka
> Issue Type: Bug
> Affects Versions: 0.8
> Environment: Java client
> Reporter: Chris Curtin
> Priority: Minor
>
> When trying to figure out how to connection with 0.8.0 Producer was only
> seeing exceptions:
> Exception in thread "main" kafka.common.FailedToSendMessageException: Failed
> to send messages after 3 tries.
> at
> kafka.producer.async.DefaultEventHandler.handle(DefaultEventHandler.scala:70)
> at kafka.producer.Producer.send(Producer.scala:75)
> at kafka.javaapi.producer.Producer.send(Producer.scala:32)
> at com.spop.kafka.playproducer.TestProducer.main(TestProducer.java:40)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)
> Changing log4j level to DEBUG showed the actual error:
> 878 [main] WARN kafka.producer.async.DefaultEventHandler - failed to send
> to broker 3 with data Map([test1,0] ->
> ByteBufferMessageSet(MessageAndOffset(Message(magic = 2, attributes = 0, crc
> = 1906312613, key = null, payload = java.nio.HeapByteBuffer[pos=0 lim=22
> cap=22]),0), ))
> java.lang.NoSuchMethodError: com.yammer.metrics.core.TimerContext.stop()J
> at kafka.metrics.KafkaTimer.time(KafkaTimer.scala:36)
> at kafka.producer.SyncProducer.send(SyncProducer.scala:94)
> at
> kafka.producer.async.DefaultEventHandler.kafka$producer$async$DefaultEventHandler$$send(DefaultEventHandler.scala:221)
> at
> kafka.producer.async.DefaultEventHandler$$anonfun$dispatchSerializedData$1.apply(DefaultEventHandler.scala:87)
> at
> kafka.producer.async.DefaultEventHandler$$anonfun$dispatchSerializedData$1.apply(DefaultEventHandler.scala:81)
> at
> scala.collection.mutable.HashMap$$anonfun$foreach$1.apply(HashMap.scala:80)
> at
> scala.collection.mutable.HashMap$$anonfun$foreach$1.apply(HashMap.scala:80)
> at scala.collection.Iterator$class.foreach(Iterator.scala:631)
> at
> scala.collection.mutable.HashTable$$anon$1.foreach(HashTable.scala:161)
> at
> scala.collection.mutable.HashTable$class.foreachEntry(HashTable.scala:194)
> at scala.collection.mutable.HashMap.foreachEntry(HashMap.scala:39)
> at scala.collection.mutable.HashMap.foreach(HashMap.scala:80)
> at
> kafka.producer.async.DefaultEventHandler.dispatchSerializedData(DefaultEventHandler.scala:81)
> at
> kafka.producer.async.DefaultEventHandler.handle(DefaultEventHandler.scala:57)
> at kafka.producer.Producer.send(Producer.scala:75)
> at kafka.javaapi.producer.Producer.send(Producer.scala:32)
> at com.spop.kafka.playproducer.TestProducer.main(TestProducer.java:40)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)
> Submitted per Jay's request in a mailing list thread.
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