MySql. Data. MySqlClient. MySqlException x80004005 (0) : The Timeout expired. The Timeout period elapsed prior to completion of The operation or The server is not responding. - & gt; System. TimeoutException: unable to read data from the transport connection: because the connected party after a period of time there is no right answer or connection host don't respond, open the connection attempt failed, and - & gt; System. IO. IOException: unable to read data from the transport connection: because the connected party after a period of time there is no right answer or connection host don't respond, open the connection attempt failed, and - & gt; System.Net.Sockets.SocketException: because the connected party after a period of time there is no right answer or connection host don't respond, open the connection attempt failed,
For the first time, I may appear this kind of situation, and then execute once, might not appear this kind of circumstance, ask god help me solve the, for several days, I can't know the reason, set up the database commandTimeout and database connection timeout is useless,
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Three o 'clock in the morning have a backup task? Other tasks or not