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Kafka >> mail # user >> Re: WebMethods consumer for Kafka.


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Re: WebMethods consumer for Kafka.
It seems that the zookeeper host string is null or empty. Can you paste the
code you used to instantiate the consumer?

Thanks,
Neha
On May 16, 2013 12:45 PM, "Seshadri, Balaji" <[EMAIL PROTECTED]>
wrote:

> Hi,
>
> I'm trying to write webMethods consumer for Kafka and I get the following
> error when I try to integrate.
>
> java.lang.NullPointerException
>                 at
> org.apache.zookeeper.ClientCnxn.<init>(ClientCnxn.java:360)
>                 at
> org.apache.zookeeper.ClientCnxn.<init>(ClientCnxn.java:331)
>                 at
> org.apache.zookeeper.ZooKeeper.<init>(ZooKeeper.java:377)
>                 at
> org.I0Itec.zkclient.ZkConnection.connect(ZkConnection.java:64)
>                 at org.I0Itec.zkclient.ZkClient.connect(ZkClient.java:872)
>                 at org.I0Itec.zkclient.ZkClient.<init>(ZkClient.java:98)
>                 at org.I0Itec.zkclient.ZkClient.<init>(ZkClient.java:84)
>                 at
> kafka.consumer.ZookeeperConsumerConnector.connectZk(ZookeeperConsumerConnector.scala:154)
>                 at
> kafka.consumer.ZookeeperConsumerConnector.<init>(ZookeeperConsumerConnector.scala:112)
>                 at
> kafka.javaapi.consumer.ZookeeperConsumerConnector.<init>(ZookeeperConsumerConnector.scala:64)
>                 at
> kafka.javaapi.consumer.ZookeeperConsumerConnector.<init>(ZookeeperConsumerConnector.scala:66)
>                 at
> kafka.consumer.Consumer$.createJavaConsumerConnector(ConsumerConnector.scala:100)
>                 at
> kafka.consumer.Consumer.createJavaConsumerConnector(ConsumerConnector.scala)
>                 at
> com.dish.des.kafka.KafkaTopicConsumer.<init>(KafkaTopicConsumer.java:44)
>                 at MyConsumer.utils.getMessages(utils.java:58)
>                 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.wm.app.b2b.server.JavaService.baseInvoke(JavaService.java:439)
>                 at
> com.wm.app.b2b.server.invoke.InvokeManager.process(InvokeManager.java:643)
>                 at
> com.wm.app.b2b.server.util.tspace.ReservationProcessor.process(ReservationProcessor.java:46)
>                 at
> com.wm.app.b2b.server.invoke.StatisticsProcessor.process(StatisticsProcessor.java:44)
>                 at
> com.wm.app.b2b.server.invoke.ServiceCompletionImpl.process(ServiceCompletionImpl.java:243)
>                 at
> com.wm.app.b2b.server.invoke.ValidateProcessor.process(ValidateProcessor.java:51)
>                 at
> com.wm.app.b2b.server.invoke.PipelineProcessor.process(PipelineProcessor.java:171)
>                 at
> com.wm.app.b2b.server.ACLManager.process(ACLManager.java:276)
>                 at
> com.wm.app.b2b.server.invoke.DispatchProcessor.process(DispatchProcessor.java:30)
>                 at
> com.wm.app.b2b.server.AuditLogManager.process(AuditLogManager.java:363)
>                 at
> com.wm.app.b2b.server.invoke.InvokeManager.invoke(InvokeManager.java:547)
>                 at
> com.wm.app.b2b.server.invoke.InvokeManager.invoke(InvokeManager.java:386)
>                 at
> com.wm.app.b2b.server.ServiceManager.invoke(ServiceManager.java:234)
>                 at
> com.wm.app.b2b.server.comm.DefaultServerRequestHandler.handleMessage(DefaultServerRequestHandler.java:119)
>                 at
> com.wm.app.b2b.server.HTTPMessageHandler.process(HTTPMessageHandler.java:160)
>                 at
> com.wm.app.b2b.server.HTTPDispatch.handleRequest(HTTPDispatch.java:181)
>                 at com.wm.app.b2b.server.Dispatch.run(Dispatch.java:354)
>                 at com.wm.util.pool.PooledThread.run(PooledThread.java:131)
>                 at java.lang.Thread.run(Thread.java:662)
>
> Please let me know fix for this.
>
> Thanks,

 
NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB