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Update Kafka生产者详解.md

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@ -324,7 +324,7 @@ acks 参数指定了必须要有多少个分区副本收到消息，生产者才
### 8. max.in.flight.requests.per.connection
指定了生产者在收到服务器响应之前可以发送多少个消息。它的值越高，就会占用越多的内存，不过也会提升吞吐量，**把它设置为1可以保证消息是按照发送的顺序写入服务器，即使发生了重试**。
指定了生产者在收到服务器响应之前可以发送多少个消息。它的值越高，就会占用越多的内存，不过也会提升吞吐量，把它设置为1可以保证消息是按照发送的顺序写入服务器，即使发生了重试。
### 9. timeout.ms, request.timeout.ms和metadata.fetch.timeout.ms