org.apache.kafka.common.network.Selector

【org.apache.kafka.common.network.Selector】的更多相关文章

org.apache.kafka.common.network.Selector

org.apache.kafka.common.client.Selector实现了Selectable接口,用于提供符合Kafka网络通讯特点的异步的.非阻塞的.面向多个连接的网络I/O. 这些网络IO包括了连接的创建.断开,请求的发送和接收,以及一些网络相关的metrics统计等功能. 所以,它实际上应该至少具体以下功能使用首先得谈一下Selector这东西是准备怎么让人用的.这个注释里说了一部分: A nioSelector interface for doing non-blocki…

Exception in thread "main" java.util.concurrent.ExecutionException: org.apache.kafka.common.errors.TimeoutException: Expiring 1 record(s) for topic_test_1219-2: 30010 ms has passed since batch creatio

代码如下 public static void producer1() throws ExecutionException, InterruptedException { Properties props = new Properties(); props.put("bootstrap.servers", "xxx:9092,xxx:9092,xxx:9092"); props.put("zookeeper.connect", "xxx…

Kafka topic Schema version mismatch error - org.apache.kafka.common.protocol.types.SchemaException

Problem description: There is error messge when run spark app using spark streaming Kafka version 0.10.0.1(https://spark.apache.org/docs/latest/streaming-kafka-0-10-integration.html) to send message to version 0.9 or 0.8 of Kafka broker. 2019-04-08 0…

kafka删除topic后再创建同名的topic报错（ERROR org.apache.kafka.common.errors.TopicExistsException）

[hadoop@datanode3 logs]$ kafka-topics.sh --delete --zookeeper datanode1:2181 --topic firstTopic first is marked for deletion.Note: This will have no impact if delete.topic.enable is not set to true. [hadoop@datanode3 logs]$ kafka-topics.sh --create…

org.apache.kafka.common.errors.SerializationException: Error deserializing... Caused by: org.apache.kafka.common.errors.SerializationException: Size of data received by IntegerDeserializer is not 4

原因,最近开发的kafka消息接收,突然报如下错: org.apache.kafka.common.errors.SerializationException: Error deserializing... Caused by: org.apache.kafka.common.errors.SerializationException: Size of data received by IntegerDeserializer is not 4 原因如下,我的kafka序列化配置中配置的序列化类如…