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Advanced MySQL 8

You're reading from   Advanced MySQL 8 Discover the full potential of MySQL and ensure high performance of your database

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Product type Paperback
Published in Jan 2019
Publisher
ISBN-13 9781788834445
Length 286 pages
Edition 1st Edition
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Authors (3):
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Birju Shah Birju Shah
Author Profile Icon Birju Shah
Birju Shah
Eric Vanier Eric Vanier
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Eric Vanier
Tejaswi Malepati Tejaswi Malepati
Author Profile Icon Tejaswi Malepati
Tejaswi Malepati
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Table of Contents (13) Chapters Close

Preface 1. Introduction FREE CHAPTER 2. MySQL 8's New Features 3. Indexing Your Data for High Performance 4. Advanced Data Techniques for Large Queries 5. MySQL Data Dictionary in MySQL 8.0 6. MySQL Server Settings 7. Group Replication in MySQL 8.0 8. InnoDB Cluster in MySQL 8.0 9. Monitoring Your Large Distributed Databases 10. Authentication and Security Management with MySQL 8.0 11. Advanced MySQL Performance Tips and Techniques 12. Other Books You May Enjoy

Operations on an online group

There will be times when we will require to run and manage an online group. It can be due to a maintenance activity or to an unscheduled downtime. We can make changes to the online group while it is serving the live traffic, and we can do so using a set of user defined functions that are packaged and installed with the group replication plugin, and the prerequisite is that all members of the group must be running MySQL 8.0.13 or later.

To use user-defined functions (UDFs), we need to connect to a member of the running group and issue the UDF with the SELECT statement. The plugin will process the action and its parameters and the coordinator sends it to all members that are visible to the member where we have issued the UDF. If the action is accepted, all members execute the action and send a termination message when completed. Once all members declare...

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