Myisam vs innodb

A major factor in database performance is the storage engine used by the database, and more specifically, its tables. Different storage engines provide better performance in one situation over another. For general use, there are two contenders to be considered.

With these storage engine there are some advantages and disadvantages according to application needs. As you all know, the default storage engine chosen by MySQL database is MyISAM.

A storage engine (or database engine) is the underlying software component that a database management system (DBMS) uses to create, rea update and delete (CRUD) data from a database. These two MySQL engines all come with their pros and cons and will have their benefits and differences which may or may not pose as factors that make their users opt for them. Each has its own advantages and there is no final rule on which is best. Oftentimes, using a mix of both will provide the best balance between data integrity and performance. In this storage engine, MyISAMChk utility is used to repair database files and MyISAMPack utility for wasted space.

MyISAM only has full table-level locking. In newer versions of MySQL, you can store the data and indexes in separate files. The Indexes (which are unpacked) is the biggest problem for Innodb tables which should be fixable though not as trivial.

InnoDB has a better crash recovery. A summary of the performance and scalability enhancements introduced with MySQL 5. Not sure about the back-up part however. Thankful for release of 5. Implemented in the server (via encryption functions), rather than in the storage engine. If you do so with the entire folder, it’ll work. But you cannot do it with just one or several databases.

This part will explain why. If you’ve decided to use MySQL database for your enterprise application, you should wisely choose the MySQL storage engine type that will be appropriate for your situation. Depending on the situation, a particular storage engine can be a best fit or worst fit. Support for large buffer pool for both data and indexes.

When you create a table, you specify one of the types. Cloud Sites environment defaults the storage engine to Innodb. That is Rackspace Cloud. Myisam is also easier to back up raw while running (without mysqldump) for things like KVM snapshots, where innodb data is often corrupted in backups performed in this way.

However, the table level locking was always a deal breaker on myisam for me.

Innodb is the clear winner in performance for the average user. Javascript Get QueryString Variable. So you want to write an app. Common MySQL queries. Updatable view as constraint.

IMHO biggest difference is concurrent writes. Comparison of HTML editors.