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From David Harris <dhar...@avum.com>
Subject StreamCorruptedException when running ZkUtils.getCluster(zKclient);
Date Fri, 05 Oct 2012 17:18:53 GMT
I’m writing a simple java program to play around with the Kafka API and I’m
running into an issue try to get the Cluster object.  The code is:



ZkClient client = new ZkClient(KafkaProperties.zkConnect, 6000);

Cluster cluster = ZkUtils.getCluster(client);



But I’m getting the following error from the ZkUtils.getCluster(client)
method when I try and run it:

Exception in thread "main"
org.I0Itec.zkclient.exception.ZkMarshallingError:
java.io.StreamCorruptedException: invalid stream header: 3139322E

                at
org.I0Itec.zkclient.serialize.SerializableSerializer.deserialize(SerializableSerializer.java:37)

                at
org.I0Itec.zkclient.ZkClient.derializable(ZkClient.java:740)

                at org.I0Itec.zkclient.ZkClient.readData(ZkClient.java:773)

                at org.I0Itec.zkclient.ZkClient.readData(ZkClient.java:761)

                at org.I0Itec.zkclient.ZkClient.readData(ZkClient.java:750)

                at org.I0Itec.zkclient.ZkClient.readData(ZkClient.java:744)

                at kafka.utils.ZkUtils$.readData(ZkUtils.scala:162)

                at
kafka.utils.ZkUtils$$anonfun$getCluster$1.apply(ZkUtils.scala:204)

                at
kafka.utils.ZkUtils$$anonfun$getCluster$1.apply(ZkUtils.scala:203)

                at
scala.collection.Iterator$class.foreach(Iterator.scala:631)

                at
scala.collection.JavaConversions$JIteratorWrapper.foreach(JavaConversions.scala:474)

                at
scala.collection.IterableLike$class.foreach(IterableLike.scala:79)

                at
scala.collection.JavaConversions$JListWrapper.foreach(JavaConversions.scala:521)

                at kafka.utils.ZkUtils$.getCluster(ZkUtils.scala:203)

                at kafka.utils.ZkUtils.getCluster(ZkUtils.scala)

                at com.company.ClassName.main(ClassName.java:44)

Caused by: java.io.StreamCorruptedException: invalid stream header: 3139322E

                at
java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:783)

                at
java.io.ObjectInputStream.<init>(ObjectInputStream.java:280)

                at
org.I0Itec.zkclient.serialize.SerializableSerializer.deserialize(SerializableSerializer.java:31)

                ... 15 more



I’m not sure if I’m doing something wrong or misusing the API can anyone
offer me any guidance?


Thanks
David Harris

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