February 2018
Intermediate to advanced
510 pages
16h 10m
English
Content preview from MySQL 8 Administrator???s Guide
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Lost connection to MySQL server
The lost connection to MySQL server error can occur because of one of the three likely causes explained in this section.
One of the potential reasons for the error is that the network connectivity is troublesome. Network conditions should be checked if this is a frequent error. If the during query message is part of the error message, it is certain that the error has occurred because of network connection issues.
The connection_timeout system variable defines the number of seconds that the mysqld server waits for a connection packet before connection timeout response. Infrequently, this error may occur when a client is trying for the initial connection to the server and the connection_timeout value is set to ...
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