mysql readtimeout_MySQL和相关的timeout详细解析

查询mysql库时， 在数据量比较大时，会话总断。刚开始以为是mysql的和连接有关timeout的问题，结果是网络的不稳定的原因。 本文主要介绍了MySQL和连接相关的timeout 的详细整理的相关资料，本文主要总结下和连接有关的timeout，需要的朋友可以参考下，希望能帮助到大家。

下面总结下和连接有关的timeout

slave-net-timeout

The number of seconds to wait for more data from the master before the slave considers the connection broken, aborts the read, and tries to reconnect. The first retry occurs immediately after the timeout. The interval between retries is controlled by the MASTER_CONNECT_RETRY option for the CHANGE MASTER TO statement, and the number of reconnection attempts is limited by the --master-retry-count option. The default is 3600 seconds (one hour).

当slave认为连接master的连接有问题时，就等待N秒，然后断开连接，重新连接master

net_read_timeout ：

The number of seconds to wait for more data from a connection before aborting the read. When the server is reading from the client, net_read_time

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