message ="%d %s"% (msg_cnt, messagedata)try:# Publish message to the Kafka Cluster# topic: specifies the 'topic' where the message will be publishedifold_client: producer.send(topic=topic_name, value=message)else: producer.produce(message)exceptKafkaTimeoutErrorase: l.error("Unable to publ...
v_consumer.assign([TopicPartition(topic,partition)])#self.registerConsumer.subscribe([self._kafkaTopic])formessageinv_consumer:#message value and key are raw bytes -- decode if necessary!#e.g., for unicode: `message.value.decode('utf-8')logging.info("%s:%d:%d: msg=%s"%(message.topic, ...
fromkafkaimportKafkaProducerimportjsonimporttime# 创建 Kafka 生产者实例producer=KafkaProducer(bootstrap_servers='localhost:9092',# Kafka 服务地址value_serializer=lambdav:json.dumps(v).encode('utf-8')# 消息序列化)# 发送消息foriinrange(10):message={'number':i}producer.send('test_topic',value=mes...
此外，您还缺少try except子句来捕获服务器未就绪时的异常。。。
Produce message to topic 'test' using simple producer example and consume through kafka-console-consumer. Checklist Please provide the following information: Confluent.Kafka nuget version: Apache Kafka version: 2.1.0 Client configuration: Operating system: Window 10, 16 GB RAM, 64 bit OS ...
Kafka是一种分布式流处理平台,用于构建高可靠性、高吞吐量的实时数据流应用程序。它基于发布-订阅模式,通过将消息分区存储在多个服务器上,实现了高效的消息传递和持久化。 在Kafka中,produce.send()是用于将消息发送到Kafka集群的方法。然而,如果produce.send()从不发送消息,可能有以下几个可能的原因: 配置错误:首先...
vim kafka-server-start.sh # Generic jvm settings you want to add if [ -z "$KAFKA_OPTS" ]; then KAFKA_OPTS="-Xmx8g -Xms8g -XX:MetaspaceSize=128m -XX:+UseG1GC -XX:MaxGCPauseMillis=20 -XX:InitiatingHeapOccupancyPercent=35 -XX:G1HeapRegionSize=16M -XX:MinMetaspaceFreeRatio=50 ...
我对Python很陌生,并试图编写一个涉及Kafka的单元测试。我有一个带有函数的类,它调用另一个函数来初始化Kafka生产者,然后调用producer.send()。我想嘲笑卡夫卡制作人的单元测试。下面是我的代码,我想为produce_kafka_message方法编写单元测试。def produce_kafka_message(self, key, value, header 浏览27提问于2022-...
After this not able to send message. Producer Configuration as below : Map<String, Object> props = new HashMap<>(); Map<String, Object> props = new HashMap<>(); props.put(ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG, kafkaServerUrl);