MySQL net_read_timeout,国内vps租用,无极vps,那里购买vps,免费试用的vps

🗣 Wd提问: MySQL net_read_timeout

🤖 Ai回答:
MySQL's `net_read_timeout` is a system variable that controls the number of seconds the server waits for more data from a connection before aborting the read、This is particularly useful in scenarios where the server is waiting for a client to send more data, but the client is not responding or is sending data very slowly.

Here are some key points about `net_read_timeout`:

1、Default value: The default value is 30 seconds.

2、Scope: It's a global variable, meaning it affects all connections、However, you can also set it for a specific session.

3、Setting the value:
Globally: `SET GLOBAL net_read_timeout = 60;`
For the current session: `SET SESSION net_read_timeout = 60;`

4、Considerations:
Setting it too low might cause legitimate queries to be interrupted.
Setting it too high might keep connections open longer than necessary, potentially leading to resource issues.

5、Related variables:
`net_write_timeout`: Controls the timeout for writing data to the connection.
`wait_timeout`: Controls the timeout for idle connections.

6、Use cases:
Increase it for applications that might take longer to send data.
Decrease it if you want to quickly detect and terminate unresponsive clients.

7、Monitoring:
You can check the current value with: `SHOW VARIABLES LIKE 'net_read_timeout';`

8、Error handling:
If the timeout is reached, the server will return an error to the client and close the connection.

Remember that adjusting this value should be done carefully, considering the specific needs of your application and the typical behavior of your clients、It's often best to start with the default value and only change it if you encounter specific issues that require adjustment.

Ai作答

📣 商家广告：