Batch containing 1 record (s) expired due to timeout while requesting metadata from brokers

First, the exception information is as follows:

Java.util.concurrent.ExecutionException:org.apache.kafka.common.errors.TimeoutException:Batch containing 1 Record (s) expired due to timeout and requesting metadata from brokers for user-video-0

At Org.apache.kafka.clients.producer.internals.FutureRecordMetadata.valueOrError (futurerecordmetadata.java:65)

At Org.apache.kafka.clients.producer.internals.FutureRecordMetadata.get (futurerecordmetadata.java:52)

At Org.apache.kafka.clients.producer.internals.FutureRecordMetadata.get (futurerecordmetadata.java:25)

At Kafka.examples.Producer.run (producer.java:43)

Second, the exception information is as follows:

Failed to send producer request with correlation ID 8 to broker 2 with data for partitions [user-video,0]

Java.nio.channels.ClosedChannelException

At Kafka.network.BlockingChannel.send (blockingchannel.scala:100) ~[kafka_2.10-0.8.2.0.jar:?]

At Kafka.producer.syncproducer.liftedtree1$1 (syncproducer.scala:73) ~[kafka_2.10-0.8.2.0.jar:?]

At kafka.producer.syncproducer.kafka$producer$syncproducer$ $doSend (syncproducer.scala:72) ~[kafka_2.10-0.8.2.0. Jar:?]

At kafka.producer.syncproducer$ $anonfun $send$1$ $anonfun $apply$mcv$sp$1.apply$mcv$sp (syncproducer.scala:103) ~[ Kafka_2.10-0.8.2.0.jar:?]

At kafka.producer.syncproducer$ $anonfun $send$1$ $anonfun $apply$mcv$sp$1.apply (syncproducer.scala:103) ~[kafka_ 2.10-0.8.2.0.jar:?]

At kafka.producer.syncproducer$ $anonfun $send$1$ $anonfun $apply$mcv$sp$1.apply (syncproducer.scala:103) ~[kafka_ 2.10-0.8.2.0.jar:?]

At Kafka.metrics.KafkaTimer.time (kafkatimer.scala:33) ~[kafka_2.10-0.8.2.0.jar:?]

At kafka.producer.syncproducer$ $anonfun $send$1.apply$mcv$sp (syncproducer.scala:102) ~[kafka_2.10-0.8.2.0.jar:?]

At kafka.producer.syncproducer$ $anonfun $send$1.apply (syncproducer.scala:102) ~[kafka_2.10-0.8.2.0.jar:?]

At kafka.producer.syncproducer$ $anonfun $send$1.apply (syncproducer.scala:102) ~[kafka_2.10-0.8.2.0.jar:?]

At Kafka.metrics.KafkaTimer.time (kafkatimer.scala:33) ~[kafka_2.10-0.8.2.0.jar:?]

At Kafka.producer.SyncProducer.send (syncproducer.scala:101) ~[kafka_2.10-0.8.2.0.jar:?]

At kafka.producer.async.defaulteventhandler.kafka$producer$async$defaulteventhandler$ $send ( defaulteventhandler.scala:255) [Kafka_2.10-0.8.2.0.jar:?]

At kafka.producer.async.defaulteventhandler$ $anonfun $dispatchserializeddata$2.apply (Defaulteventhandler.scala : 106) [Kafka_2.10-0.8.2.0.jar:?]

At kafka.producer.async.defaulteventhandler$ $anonfun $dispatchserializeddata$2.apply (Defaulteventhandler.scala : +) [Kafka_2.10-0.8.2.0.jar:?]

At scala.collection.traversablelike$withfilter$ $anonfun $foreach$1.apply (traversablelike.scala:772) [ Scala-library-2.10.4.jar:?]

At scala.collection.mutable.hashmap$ $anonfun $foreach$1.apply (hashmap.scala:98) [Scala-library-2.10.4.jar:?]

At scala.collection.mutable.hashmap$ $anonfun $foreach$1.apply (hashmap.scala:98) [Scala-library-2.10.4.jar:?]

At Scala.collection.mutable.hashtable$class.foreachentry (hashtable.scala:226) [Scala-library-2.10.4.jar:?]

At Scala.collection.mutable.HashMap.foreachEntry (hashmap.scala:39) [Scala-library-2.10.4.jar:?]

At Scala.collection.mutable.HashMap.foreach (hashmap.scala:98) [Scala-library-2.10.4.jar:?]

At Scala.collection.traversablelike$withfilter.foreach (traversablelike.scala:771) [Scala-library-2.10.4.jar:?]

At Kafka.producer.async.DefaultEventHandler.dispatchSerializedData (defaulteventhandler.scala:100) [Kafka_ 2.10-0.8.2.0.jar:?]

At Kafka.producer.async.DefaultEventHandler.handle (defaulteventhandler.scala:72) [Kafka_2.10-0.8.2.0.jar:?]

At Kafka.producer.Producer.send (producer.scala:77) [Kafka_2.10-0.8.2.0.jar:?]

At Kafka.javaapi.producer.Producer.send (producer.scala:33) [Kafka_2.10-0.8.2.0.jar:?]

At Kafka.example.kafkaProducer.run (kafkaproducer.java:24) [classes/:?]

Back off for the MS before retrying send. Remaining retries = 1

From these two exception information is caused by network problems, if the exception in the local test, put the code on the cluster test, if the cluster can look at the firewall, if not, add host host name correspondence in the local hosts file.

Batch containing 1 record (s) expired due to timeout while requesting metadata from brokers