MySQL "Too Many Connections" Solution!
In this mysql too many connections solution video we'll provide you with a mysql too many connections fix to the mysql too many connections error. The "too many connections" error in MySQL server is far too common and even the best sql database experts are sometimes left confused as for its origin & how to best solve the issue.
This sql tutorial video will try to shed some light on this issue.
To begin with, we'll tell you that this error occurs once all of the available connections in your MySQL server are exhausted. The problems can very and they usually fall under one or more of the following categories:
1) Your SQL queries are slow.
2) Your MySQL server is dealing with a lot of connections that you forget to close.
3) Your SQL database design is faulty.
4) There's little free space on your hard drive.
The default value for the "max_connections" parameter in MySQL server and its counterparts (Percona Server and MariaDB) is 151 and the maximum value is 100,000.
This parameter in your SQL databases should be increased carefully and after careful investigation and it shouldn't be assumed that raising of this parameter will automatically cause the mysql too many connections error to go away - you should investigate the cause instead.
As far as newer versions of MySQL server are concerned, MySQL 8.0.14 introduced a new "administrative connections" feature. This mysql server feature allows users to access the sql database once all of the user connections are maxed out. To use this feature in your sql databases, a "SERVICE_CONNECTION_ADMIN" privilege is required.
The "SUPER" privilege is deprecated as of MySQL Server 8.0 and the "CONNECTION_ADMIN" privilege should be used instead.
The "CONNECTION_ADMIN" privilege enables the use of the "KILL" SQL query and "SERVICE_CONNECTION_ADMIN" enables connections to your SQL database that permits administrative connections and it can be used as a mysql too many connections fix.
As far as Percona Server is concerned, it had the "EXTRA_PORT" and "EXTRA_MAX_CONNECTIONS" variables too - both of these variables are now deprecated.
Many SQL variables related to the maximum amount of connections do require a mysql too many connections flush, but not a mysql server restart (in other words, they're dynamic.)
Enjoy the video!
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