IT技术分享--kafka消息大小设置

kafka消息大小默认为1M，当需要调整消息大小时，可通过以下方式配置，亲测有效。

一、Kafka服务端配置文件修改

注意：kafka集群各个节点配置都要同步修改

(1)server.properties

1.修改以下配置：

# The send buffer (SO_SNDBUF) used by the socket server#socket.send.buffer.bytes=102400socket.send.buffer.bytes=10485760# The receive buffer (SO_RCVBUF) used by the socket server#socket.receive.buffer.bytes=102400socket.receive.buffer.bytes=10485760# The maximum size of a request that the socket server will accept (protection against OOM)socket.request.max.bytes=104857602.添加以下配置

#5242880（5M）6291456（6M） 10485760（10M） 125829120（120M）message.max.bytes=10485760#每个分区试图获取的消息字节数。要大于等于message.max.bytesreplica.fetch.max.bytes=12582912#原有的socket.send.buffer.bytes,socket.receive.buffer.bytes,socket.request.max.bytes也要改成和message.max.bytes一样的大小

(2)producer.properties

1. 修改以下配置

#请求的最大大小为字节9437184（9M）。要小于 message.max.bytes=10485760（10M）max.request.size=9437184

(3)consumer.properties

1. 添加以下配置

#每个提取请求中为每个主题分区提取的消息字节数。要大于等于message.max.bytes=10485760（10M）12582912（12M）fetch.message.max.bytes=12582912

(4)重启kafka

1. 先关闭kafka

./bin/kafka-server-stop.sh

2. 再启动kafka

bin/kafka-server-start.sh -daemon config/server.properties

二、客户端程序配置

##5242880 5M 10485760 10Mspring.kafka.producer.properties.max.request.size=10485760
spring.kafka.consumer.fetch-max-bytes=62914560

三、报错信息

当kafka需要发送大于1M的消息时，客户端程序必须配置这两个参数，否则将会报以下错误：

报错1：

`org.apache.kafka.common.errors.RecordTooLargeException:The message is xxxxx bytes when serialized which is larger than the maximum request size you have configured with the max.request.size configuration.`

报错2：

Kafka - Received invalid metadata error in produce request on partition. NetworkException when send large data to kafka topic

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