consumer.close()# 关闭消费者 1. 类图与关系图 以下是 Kafka 消费者的类和关系图示。 KafkaConsumer+assign(partition)+seek(partition, offset)+close() KAFKA_TOPICstringnamePKCONSUMERintidPKstringconsumerNameconsumes 结尾 通过上面的步骤,我们可以实现 Kafka Consumer 的消费位置设置。这种灵活性使我们可以更好...
from kafka.structs import TopicPartition consumer = KafkaConsumer(group_id='123456', bootstrap_servers=['10.43.35.25:4531']) consumer.assign([TopicPartition(topic='test_rhj', partition=0), TopicPartition(topic='test_rhj', partition=1)]) print consumer.partitions_for_topic("test_rhj") # 获取...
from kafka import KafkaConsumer from kafka.structs import TopicPartition consumer = KafkaConsumer(bootstrap_servers=['192.168.145.128:9092']) consumer.subscribe(topics=('test','test0')) #订阅要消费的主题 print consumer.topics() print consumer.position(TopicPartition(topic=u'test', partition=0)) ...
from kafka import KafkaConsumer from kafka.structs import TopicPartition consumer = KafkaConsumer(group_id='123456', bootstrap_servers=['10.43.35.25:4531']) consumer.assign([TopicPartition(topic='test_rhj', partition=0), TopicPartition(topic='test_rhj', partition=1)]) print consumer.partitions_...
在Python中使用KafkaConsumer从指定偏移量开始消费消息,需要遵循一定的步骤来配置和启动消费者。以下是详细的步骤,包括必要的代码片段: 1. 导入必要的Kafka库 首先,需要确保安装了kafka-python库,然后在代码中导入KafkaConsumer和TopicPartition。 python from kafka import KafkaConsumer, TopicPartition 2. 配置Kafka消费...
seek(TopicPartition(topic='test', partition=0), 1) for message in consumer: print ("%s:%d:%d: key=%s value=%s" % (message.topic, message.partition, message.offset, message.key, message.value)) 消费者-订阅多个主题 # -*- coding:utf-8 -*- from kafka import KafkaConsumer consumer =...
consumer= KafkaConsumer('test_rhj', bootstrap_servers=['xxxx:x'])formsginconsumer: recv="%s:%d:%d: key=%s value=%s"%(msg.topic, msg.partition, msg.offset, msg.key, msg.value)printrecv---下面是结果: 2、如果想要完成负载均衡,就需要知道kafka的分区机制,同一个主题,可以为其分区,在生产者...
consumer通过调用seek(TopicPartition, long)方法,移动到指定的分区的偏移位置。 参考:https://blog.csdn.net/laojiaqi/article/details/79034798 Broker Kafka是一个高吞吐量分布式消息系统,采用Scala和Java语言编写,它提供了快速、可扩展的、分布式、分区的和可复制的日志订阅服务。它由Producer、Broker、Consumer三部分...
_consumer_offsets_,知道了 消费者在消费了消息之后会把消费的offset 更新到以 名称为__consumer_...
使用seek 方法从指定的partition和offset开始读取数据 #encoding:utf8 from kafka import KafkaConsumer, TopicPartition my_topic = "my.topic" # 指定需要消费的主题 consumer = KafkaConsumer( bootstrap_servers = "192.168.70.221:19092,192.168.70.222:19092,192.168.70.223:19092", # kafka集群地址 group_id =...