Mysql Master Master

MySQL master-slave synchronization is a very mature architecture, the advantages are: ① from the server can perform the query (that is, we often say reading function), reducing the pressure on the main server; ② in the backup from the main server to avoid the impact of the backup Main server service; ③ When the main server problems, you can switch to the server. So I often use this program in the deployment and implementation of the project; In view of the mysql production environment rigor, I recommend Zhang fellow MySQL source compiled here. The fourth edition updated as follows: First, an increase of ...

Data tampering is to modify, add or delete computer network data, resulting in data destruction. The database data was attacked first to see if it was deleted or tampered with? Is there any backup data that can be restored and reinforced? This article comes from the database technical expert Zhang, mainly describes the MySQL attack tampering data, utilizes the Binlog from the library backup and the main library to carry on the incomplete recovery. The following is the author's original: First, the discovery of the problem today is 2014-09-26, development early in the morning that the database was attacked. The article in the database of an article table ...

Mysql/galera is a distributed version of MySQL that can be used to create a synchronous multiple master MySQL (InnoDB) cluster. It is based on the concept of write settings synchronization and a patched MySQL server and galera composition, a universal synchronous backend that implements the Wsrep interface. Mysql/galera has a truly multiple-master function that can be modified at the same time on different nodes in the same table. This is truly highly available and will never lose a committed transaction. Mysql/galera 0.8 ....

Mysql/galera is a distributed version of MySQL that can be used to create a synchronous multiple master MySQL (InnoDB) cluster. It is based on the concept of write settings synchronization and the patched MySQL server as well as the galera composition, a universal synchronous backend that implements the Wsrep interface. Mysql/galera has a truly multiple-master function that can be modified at the same time on different nodes in the same table. This is truly highly available and will never lose a committed transaction. Mysql/galera Version 1.0 ...

Here's an excerpt of the background, followed by a record of the operations I migrated from MySQL 5.5.31 to mariadb 5.5.31 on CentOS 6.4. 　　Finally, I found a better way to migrate. 1. Background introduction MySQL is the world's most popular open source relational database. 2008, Sun acquired MySQL. Then, in 2010, Oracle bought Sun, and MySQL fell into Oracle's hands. Oracl ...

Mysql often encountered during the three failures, in this summary. 1, MySQl service can not start We use mysql process, often encounter MySQl service can not start, specific error message: Starting MySQL ERROR.The server quit without updating PID file (/ [FAILED] l / mysql /) For such error,...

As long as you master the following method, you can basically get the mysql database. First, the connection MYSQL format: mysql-h host address-u username-p user password 1, Example 1: Connect to the local MySQL: First open the DOS window and then enter the directory mysqlbin, then type the command mysql -uroot - p, after the carriage return prompts you to lose the password, if you just installed MYSQL, super user root is no password, so enter directly into MYSQL, MYS ...

Databases are the basis of E-commerce, finance, and ERP systems, and often hold important business partners and customer information. Electronic data from most businesses, organizations, and government departments are kept in various databases, where they keep personal data and sensitive financial data. But databases are often not as secure as operating systems and networks. Data is the lifeblood of an organization, so it is critical to choose a secure database. I installed the MSSQL and MySQL by default with admin account on my machine to be in the same ...

As the most popular open source database, MySQL is widely used in Web applications and other small and medium-sized projects. However, in many large IT companies, MySQL has gradually deviated from the original open source version after being highly optimized and customized, more like a branch, such as the Webscalesql of Facebook, which was not long ago open source. 　　Recently, Mr. Xiong has published a blog post, from the perspective of large-scale web site architecture development of the changes in MySQL application, here for you to share. This article mainly describes the different and ...

Intermediary transaction http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest Cloud host Technology Hall I have been engaged in website construction for more than three years, the enterprise station also built a lot, portal station also do a few, 　　The front and back of these stations are all written by themselves, although they do not count what to build the station master, but feel their own level of construction can also be, today and you share, how to become a building station master. First ...