what s on the companion website

... With the GLOBAL modifier SHOW STATUS shows the status for all connections to the server With the SESSION modifier it shows the status for the current connection If neither is specified it show the session ... specify either GLOBAL or SESSION modifiers By default, SHOW STATUS will show SESSION variables This may or may not be your intention, so to avoid confusion, always specify GLOBAL or SESSION as ... different transaction The SERIALIZABLE isolation level provides the slowest performance but also the most isolation between transactions The mysqld isolation level is set by the tx_isolation system variable...

Ngày tải lên: 21/01/2014, 22:20

... nine sections These sections provide a snapshot of activity occurring inside the InnoDB storage engine Table 11-5 lists these sections TABLE 11-5 InnoDB Status Sections Section Name Description Semaphores ... is a subsystem that manages tables Most database management systems have one subsystem to manage tables; MySQL Server can use different subsystems Because a storage engine is applied at the table ... controller, the controller immediately tells the server the flush is complete The server considers it committed and is free to other task The RAID controller then flushes the writes stored in the...

Ngày tải lên: 21/01/2014, 22:20

... compression The compression level is an integer between and A gives the fastest backup/worst compression level, and a gives the slowest backup/best compression A means no compression is performed ... information is saved as a CHANGE MASTER statement If n is set to 2, the information is saved as a commented out CHANGE MASTER statement If this option is specified mysqldump assumes you want a consistent ... systems is one of the best ways to create a consistent, physical hot backup of your database files A file system snapshot provides a point-in-time view (snapshot) of a disk partition Consider what...

Ngày tải lên: 21/01/2014, 22:20

... will be discussed in the next section Access Control Lists An ACL (Access Control List) is a list of permissions that is associated with an object This list is the basis for MySQL server s security ... SUBPARTITION s5 , SUBPARTITION s6 , SUBPARTITION s7 ), PARTITION p2 VALUES LESS THAN (2010) ( SUBPARTITION s8 , SUBPARTITION s9 , SUBPARTITION s1 0, SUBPARTITION s1 1), Please purchase PDF Split-Merge on www.verypdf.com ... permissions on another server Here is a sample of the mk-show-grants command on a system with more users Password hashes have been removed: shell> /mk-show-grants -u root -ppassword Grants dumped...

Ngày tải lên: 21/01/2014, 22:20

... MySQL Administration TABLE 16-3 SHOW SLAVE STATUS Field Descriptions Field Name Description Master_Host The hostname or IP address of the master server Master_User User used to establish the connection ... process that reads from the relay log and then replays the statements or data changes for the MySQL process on the slave server The end result of this process is that the slave server has executed ... encryption ssl-key=file_name The filename of the SSL key file used for SSL-based connections ssl-verify-server-cert When using this option mysqlslap verifies that the Common Name value of the server’s...

Ngày tải lên: 21/01/2014, 22:20

... query session The script uses SHOW SESSION STATUS and SHOW SESSION VARIABLES setvars Used to set MySQL variables You can specify any variable you want configured before query execution begins socket ... join Sort scan Sort range Sort mrg pass 0 182 152 0.0 /s 0 /s 0 /s 0.0 /s 0.0 /s 0.0 /s 0.01 0.00 0.00 The SELECT and Sort subsection provides information about the Select_status values These values can ... Option Description user username Specifies the username used by mysqlreport to for connection to mysqld password password Specifies the password used by mysqlreport to connect to mysqld host...

Ngày tải lên: 21/01/2014, 22:20

... INDEX Yes Yes Yes No No INSERT INSERT Yes Yes Yes No No LOCK TABLES LOCK TABLES on all tables the user is allowed the SELECT privilege Yes Yes No No No PROCESS SHOW PROCESSLIST shows all users’ processes ... Options Option Example Usage Description bind-address bind-address= 192.168.1.1 Binds the mysqld server to the specified IP address Only one address may be specified mysqld only accepts connections ... is possible to subvert the reason trust is allowed IN THIS CHAPTER Using access control lists Accessing the operating system Securing backups and logs Securing data Creating security policies...

Ngày tải lên: 21/01/2014, 22:20