High Performance MySQL: Optimization, Backups, Replication, and More
Baron Schwartz, Arjen Lentz
Language: English
Pages: 712
ISBN: 0596101716
Format: PDF / Kindle (mobi) / ePub
High Performance MySQL is the definitive guide to building fast, reliable systems with MySQL. Written by noted experts with years of real-world experience building very large systems, this book covers every aspect of MySQL performance in detail, and focuses on robustness, security, and data integrity. High Performance MySQL teaches you advanced techniques in depth so you can bring out MySQL's full power. Learn how to design schemas, indexes, queries and advanced MySQL features for maximum performance, and get detailed guidance for tuning your MySQL server, operating system, and hardware to their fullest potential. You'll also learn practical, safe, high-performance ways to scale your applications with replication, load balancing, high availability, and failover. This second edition is completely revised and greatly expanded, with deeper coverage in all areas. Major additions include:
- Emphasis throughout on both performance and reliability
- Thorough coverage of storage engines, including in-depth tuning and optimizations for the InnoDB storage engine
- Effects of new features in MySQL 5.0 and 5.1, including stored procedures, partitioned databases, triggers, and views
- A detailed discussion on how to build very large, highly scalable systems with MySQL
- New options for backups and replication
- Optimization of advanced querying features, such as full-text searches
- Four new appendices
The book also includes chapters on benchmarking, profiling, backups, security, and tools and techniques to help you measure, monitor, and manage your MySQL installations.
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Acknowledgments for the First Edition From Jeremy From Derek 1. MySQL Architecture MySQL's Logical Architecture Connection Management and Security Optimization and Execution Concurrency Control Read/Write Locks Lock Granularity Transactions Isolation Levels Deadlocks Transaction Logging Transactions in MySQL Multiversion Concurrency Control MySQL's Storage Engines The MyISAM Engine The MyISAM Merge Engine The InnoDB Engine The Memory Engine The Archive Engine The
head. Figure 6-1. InnoDB's buffers and files InnoDB uses its log to convert this random disk I/O into sequential I/O. Once the log is safely on disk, the transactions are permanent, even though the changes haven't been written to the data files yet. If something bad happens (such as a power failure), InnoDB can replay the log and recover the committed transactions. Of course, InnoDB does ultimately have to write the changes to the data files, because the log has a fixed size. It writes
finds a way into your production code, especially if your application or team is large. [90] Another issue is bugs in the server. We don't want to sound negative, but most major versions of the MySQL server have historically had some bugs in replication, especially in the first releases of the major version. New features, such as stored procedures, have usually caused more problems. For most users, this is not a reason to avoid new features. It's just a reason to test carefully, especially when
probably safe to say the event will reach the slave as quickly as the slave thread can wake up and the network can transfer the data. * * * [91] See http://datacharmer.blogspot.com/2006/04/measuring-replication-speed.html. The Future of MySQL Replication MySQL replication has a number of shortcomings that MySQL AB plans to address in the future. Third parties have already built some of the features and fixes. For example, Google has released a set of custom patches to the MySQL
BUFFER AND ADAPTIVE HASH INDEX, INSERT BUFFER AND ADAPTIVE HASH INDEX, BUFFER POOL AND MEMORY, BUFFER POOL AND MEMORY, ROW OPERATIONS, ROW OPERATIONS, SHOW PROCESSLIST, innotop, InnoDB Lock Waits, InnoDB Lock Waits 64-bit numbers, SHOW INNODB STATUS buffer pool, The InnoDB Buffer Pool clustered indexes, Clustered Indexes, The InnoDB Storage Engine concurrency tuning, The InnoDB Engine, InnoDB Concurrency Tuning corruption problems with, Causes of InnoDB corruption data dictionary, The
