Cloudera“构建情感分析应用程序”问题

Question

我一直在尝试查看关于Building a Sentiment Analysis Application的cloudera教程，并在有关卡夫卡消费者/生产者的“获取Twitter数据” 阶段一直出错。

错误消息是：

• 21:10:49 UTC - sandbox-hdf.hortonworks.com:9090 - WARNING In 0 (0 bytes) aglik 5 min PublishKafka_0_10[idr6e874c55-7167-35de-8def-48af92b6f3a6] Processor Administratively Yielded for 1 sec due to processing failure

• 21:10:49 UTC - sandbox-hdf.hortonworks.com:9090 - ERROR Out 0 (0 bytes) 5 min PublishKafka_0_10(idr6e874c55-7167-35de-8def-48af92b6f3aq PublishKafka_0_10[idtte874c55-7167-35de-8def-48af92b6f3a61 failed to process Tasks/Time 13 / 00:00:06.659 5 min session due to org.apache.kafka.common.KafkaException: Failed to construct kafka producer: Failed to construct kafka producer

• 21:10:49 UTC - All Nodes - ERROR PublishKafka_0_10[idr6e874c55-7167-35de-8def-48af92b6f3a6] PublishKafka_0_10[ifle874c55-7167-35de-8def-48af92b6f3a61 failed to process due to org.apache.kafka.common.KafkaException: Failed to construct kafka producer; rolling back session: Failed to construct kafka producer

• 21:10:48 UTC - sandbox-hdf.hortonworks.com:9090 - WARNING PublishKafka_0_10[idt6e874c55-7167-35de-8def-48af92b6f3a6] Processor Administratively Yielded for 1 sec due to processing failure

• 21:10:48 UTC - sandbox-hdf.hortonworks.com:9090 - ERROR PublishKafka_0_10[idr6e874c55-7167-35de-8def-48af92b6f3a6] PublishKafka_0_10[idr6e874c55-7167-35de-8def-48af92b6f3a61 failed to process session due to org.apache.kafka.common.KafkaException: Failed to construct kafka producer: Failed to construct kafka producer