Mysql Buffer Pool

In peacetime is asked the most questions about the MySQL database performance optimization issues, so recently intended to write a MySQL database performance optimization of the series of articles, I hope that the junior high level MySQL DBA and other interested in MySQL performance of friends to help. Databases are IO-intensive applications whose primary responsibility is data management and storage. And we know that the time to read a database from memory is the microsecond level, and reading an IO from a common hard disk is at the millisecond level, both ...

Pagerduty, an emerging internet start-up, is a product that can send reminders on the server, including on-screen displays, phone calls, SMS notices, email announcements, and more. At present, AdMob, 37Signals, StackOverflow, Instagram and so on have adopted the pagerduty as the message notification as well as the sudden event processing tool. Doug Barth, author of this article, shared how Pagerduty successfully migrated existing system MySQL to the XTRADB cluster to ...

In Linux, the situation is often used VBB forum system, there slow, mysql suspended animation, sleep process too much and so on. Lead to dozens of users, put the system buttoned up. In fact, this is the mysql configuration issues, the default linux, mysql configuration is my-large.cnf configuration, the configuration for large servers. High memory, such as 2G, 4G memory, suitable for use, ...

The core concept of sub-library table is based on MySQL storage. Solving the problem of data storage and access capacity, the product supports the database traffic of previous Tmall double eleven singles day core transaction links, and gradually grew into the standard of Alibaba Group access relational database.

As we all know, Java in the processing of data is relatively large, loading into memory will inevitably lead to memory overflow, while in some http://www.aliyun.com/zixun/aggregation/14345.html "> 　　Data processing we have to deal with massive data, in doing data processing, our common means is decomposition, compression, parallel, temporary files and other methods; For example, we want to export data from a database, no matter what the database, to a file, usually Excel or ...

Check_mysql_health is a http://www.aliyun.com/zixun/aggregation/17185.html "> Help user Monitor MySQL database nagios plug-ins." Its function is: The measure list of timed login, index use, buffer pool hit rate, query 5603.html "> Cache hit ratio, query speed slowed, disk temperature table, table cache hit, thread connection, and so on." C ...