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Samebug tips

  1. ,
    Expert tip

    This might be an issue with the file location in the Spark submit command. Try it with

    spark-submit --master spark://master:7077 \
         hello_world_from_pyspark.py {file location}
    
    
  2. ,
    Expert tip

    Check if you've set a name in Application -> Run. If you didn't, the generated XML is gonna have missing information and then this exception will be thrown.

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Failed to construct kafka consumer
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Failed to construct kafka consumer
java.lang.ClassNotFoundException: roundrobin	at java.lang.Class.forNameImpl(Native Method)	at java.lang.Class.forName(Class.java:321)	at org.apache.kafka.common.utils.Utils.newInstance(Utils.java:328)	at org.apache.kafka.common.config.AbstractConfig.getConfiguredInstances(AbstractConfig.java:202)	at org.apache.kafka.clients.consumer.KafkaConsumer.(KafkaConsumer.java:566)	at org.apache.kafka.clients.consumer.KafkaConsumer.(KafkaConsumer.java:518)	at org.apache.kafka.clients.consumer.KafkaConsumer.(KafkaConsumer.java:500)	at com.ibm.streamsx.messaging.kafka.KafkaConsumerV9.(KafkaConsumerV9.java:29)	at com.ibm.streamsx.messaging.kafka.KafkaStringConsumerV9.(KafkaStringConsumerV9.java:12)	at com.ibm.streamsx.messaging.kafka.KafkaConsumerFactory.getClient(KafkaConsumerFactory.java:27)	at com.ibm.streamsx.messaging.kafka.KafkaSource.allPortsReady(KafkaSource.java:116)	at com.ibm.streams.operator.internal.runtime.api.OperatorAdapter.allPortsReady(OperatorAdapter.java:763)	at com.ibm.streams.operator.internal.jni.JNIBridge.allPortsReady(JNIBridge.java:614)