If you are evaluating the pressure of a MySQL database, you can use Sysbench to test
The concrete operation out, installs the Sysbench tool first, installs the operation as follows:
Installation Environment
CentOS Release 5.4 (Final)MySQL 5.1.40
Max-allowed-packet max_allowed_packet Mysql 5.1 encounters an excessively large information package problem when importing data using the client, the error code is: 1153-Got a packet bigger than 'max _ allowed_packet 'bytes terminates data import.
Set Change root passwordNote: How to change the root password, about the root user is the MySQL Super administrator user, it is similar to the root user inside the Linux operating system, to distinguish between the root of MySQL and the system root
MySQL form size bitsCN.com
This refers to the size of the form, rather than the maximum length of a data storage item in the table.
PS the length of the blob type in the table is given here. BLOB is a binary large object. it is a container that
MySQL Error: (2006, ' MySQL server has gone away ') the problem is that the client and MySQL server link between the broken.
The reason for this is that the SQL operation is typically too long, or that the data being transmitted is too large (for
MySQL Study Notes summary, mysql Study Notes
Slow SQL: A Query whose execution time exceeds the specified time range is called a slow query.In MySQL, how does one record slow SQL statements?A: You can set the following information in my.
Because I need to use MySQL in my work, I learned from the Internet and started to practice, and finally changed from a "database cainiao" to a "quasi-Prawns" Who Can skillfully operate MySQL ,:). My learning experience is as follows.
MySQL is a
These days of work, in the use of MySQL database, encountered too many connections problem and timeout expired problem, after trying, a little summary, hoping to help the needs of friends;Found in the test,1:too Many connections error will be
MySQL5.5.22 single-host multi-instance configuration practices
MySQL 5.5.22
Single-host, multi-instance configuration practices
Background/requirement:
Compile and install a MySQL database of version 5.5 or above through source code on a server.
First, demand:For a machine that already has a single instance of MySQL, add two MySQL databases and implement multiple instances of a single computer.One binding on port 3306, the other two bindings on port 3307,3308;Data are stored
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