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In: Operations Management

There are MANY versions of MySQL in production (and in some cases, test) environments. Why is...

There are MANY versions of MySQL in production (and in some cases, test) environments. Why is this? Why not just upgrade as soon as possible? Why are commands depreciated? How does this effect tutorials, books and training sites? What impact can be seen from an open-source project being under the control of a commercial company? Show some examples of what may occur. What can you do to keep YOUR database from having issues in the future? Can you future proof? Discuss these and any other issues you may come up with related to MySQL.

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Expert Solution

In some cases, you may want to run multiple MySQL applications on the same machine. You may want to try the new version of MySQL upon leaving the existing production setup. Or you may want to give different users access to a different mysqld server that they manage on their own. (For example, you could be an ISP that wants to provide a third party MySQL installation to a different client.)

You can use a different MySQL server, for example, or use the same binary for multiple objects or a combination of both. For example, you can run one server from MySQL 5.7 and one from MySQL 8.0 to see how different versions handle the load. Or you can run multiple models of the current production version, each managing a different data set.

Whether you are using a separate server binary, for example, each process must be configured with values ​​for multiple operating parameters. This eliminates the potential for conflict between objects. Parameters can be set at the command line in the options file or by setting environment variables.

keosha answered 4 months ago
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