Tuning of any database is required in order to optimize its performance. A well-tuned database performs faster and maximizes the use of system resources. If your database is not optimized, it will response poorly and eventually effect your business. Similarly if you are using MySQL for storing your data then don't forget to optimize it. MySQL provides different storage engines and each storage engine has unique design and properties. So it is important to optimize each storage engine according to its design. I will discuss performance tuning tips for InnoDB.
Article about causes and resolution methods for Different MySQL corruption scenarios
Friday, January 25, 2013
Friday, December 21, 2012
Recover Data Even After Encountering Error Code 1030 in MySQL Database
InnoDB and MyISAM both are default storage engines of MySQL database management system. However, database administrators prefer InnoDB over MyISAM as InnoDB provides ACID compatible transaction environment, and facilitates features like crash recovery, rollback, and commit. In order to manage valuable data on database, InnoDB uses various libraries. Despite these useful features of InnoDB, there occur situations when this storage engine gets corrupt and causes inaccessibility of your stored data. You are required to opt for efficient measures to repair MySQL database and overcome such unexpected situations of data loss. As a real life example, you may encounter the below mentioned error message, when InnoDB gets corrupt:
“Uncategorized SQLException for SQL []; SQL state [HY000]; error code [1030]; Got error 134 from storage engine; nested exception is java.sql.SQLException: Got error 134 from storage engine”
Wednesday, November 14, 2012
How to Ward off Table Corruption Problems in MySQL
Database corruption is a problem that
may be lurking around the corner and will only come to your notice
once you hit the corrupt block. As any other database, corruption may
hit your MySQL databases making millions of corporate data records
inaccessible. Finding corruption in MySQL tables is painstaking. You
may expect queries to stop working or showing inconsistent outcome.
When you start experiencing such issues, you need to check your
tables for consistency. In the event of MySQL database corruption,
the below given errors may show up intermittently on your screen:
Tuesday, August 21, 2012
Migration Tool: A source RDBMS to MySQL
What is MySQL workbench migration tool?
As name suggest, it is a migration tool that converts a relational database to another relation database. For example you can easily migrate from Microsoft SQL server to MySQL with the help of this tool. It will automatically convert as much data as it can but sometimes you may require editing to automatically migrated data for complex cases. As per MySQL developer, this migration tool automatically migrates tables & its data only, for code objects such as stored procedures, triggers & views are not. It is successfully tested for SQL server 2000, 2005, 2008, and 2012.
As name suggest, it is a migration tool that converts a relational database to another relation database. For example you can easily migrate from Microsoft SQL server to MySQL with the help of this tool. It will automatically convert as much data as it can but sometimes you may require editing to automatically migrated data for complex cases. As per MySQL developer, this migration tool automatically migrates tables & its data only, for code objects such as stored procedures, triggers & views are not. It is successfully tested for SQL server 2000, 2005, 2008, and 2012.
Monday, July 16, 2012
Performing Crash Recovery and Media Recovery after Facing Corruption in InnoDB tables of MySQL Database
MySQL is known for its ease-of-use, performance, and scalability. The versions prior to MySQL 5.5 have MyISAM as their default database storage engine. In MySQL 5.5, the default settings have been changed as InnoDB becomes the default database storage engine. This change has brought a handful of significant improvements in the lives of database users and administrators. Some of the major benefits of using InnoDB tables include ACID transactions, Referential integrity, and Crash recovery.
Tuesday, June 26, 2012
A Simple Approach to MySQL Database Recovery Using Binary Backups
The InnoDB storage engine of MySQL has the capability to provide a transaction safe database. However, due to some unexpected power failures and internal system malfunctions, the risks of database crash or corruption increase. You may get the following error on your screen while accessing some of the pages of your website:
Thursday, April 12, 2012
Reliable Utility to Resolve MySQL Error Code 144 and Recover Precious Data Back
The applications that are involved in on-line transactions or are accessed by huge number of users on a daily basis require databases at the back-end to store important data. The database linked at the back-end of an on-line application either works as a base storage of the data related to the transactions or stores the authorization, authentication, and accountability information of accounts for proxy server verification. For its good internal structure and fast counter response, MySQL is widely used in various on-line applications. At times MySQL database gets corrupt and all the data in it becomes completely inaccessible. For such situations, Stellar Data Recovery has developed an advanced MySQL repair utility, which is powerful enough to repair the corrupt database and recover your data back.
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