mysql dba certification

MySQL databases can be said to be one of the most common and commonly used databases of DBAs. To facilitate your use, MySQLDBA summarizes some of the most common and frequently used experience and skills of MySQL databases, share with you! MySQL databases can be said to be one of the most common and commonly used databases of DBAs. To facilitate your use, the old

, and r are sorted by the number of records, time, query time, and number of returned records, ac, at, al, and ar indicate reverse descriptions;*-T indicates the top n, that is, the number of previous data records returned;*-G, followed by a regular expression matching mode, which is case insensitive; For example/Path/mysqldumpslow-s r-t 10/database/mysql/slow-logYou can obtain up to 10 queries from the returned record set./Path/mysqldumpslow-s t-t 10

downloaded package, initialize to complete the installation of MySQL start.3.1.4 How to correctly choose the installation method of MySQLBinary installation is simple and convenient, suitable for 5.0-5.1 and 5.5-5.6 series, is a lot of professional DBA choice, ordinary Linux operation and maintenance personnel to use the way of compiling, 5.0-5.1 series is the conventional way of compiling, 5.5-5.6 or more

Tags: http 0 rows cal performance through-distributed deployment rip yourselfMySQL DBA questions on the facea friend sent a post asking some MySQL dba interview questions, answer less people, he gave me the address, but I do not have the account of the site, so the collation issued in my Blog inside, you can refer to the following, but also welcome to make more r

situation? At this point we can judge by InnoDB LSN, below is the information obtained in show InnoDB status: Log sequence number814 3121743145Log flushed up to814 3121092043Last checkpoint at814 2826361389As you can see here, the current LSN is 8143121743145, the last checkpoint is at 814.2826361389, which means the difference between the two is 3121743145-2826361389=295381756, it means that InnoDB still has a lot of dirty page to flush. The following is the LSN information for another library

Xtrabackup------ Necessary tools for MySQL DBA Note: 1) Documents Reference http://www.percona.com/docs/wiki/percona-xtrabackup:start 2) mysql version 5.1.50 or later. 1. Introduction and installation of Xtrabackup 1. Xtrabackup is an open-source project of percona. It supports hot backup of innodb, XtraDB, and MyISAM (locks tables). It can be seen as a free alte

Original post address: http://www.itpub.net/forum.php? MoD = viewthread tid = 1773550 page = 3 extra = # pid21190340 As a MySQL dBA, I have given my own understanding. Let's talk a lot about it: 1: as a technical interviewer, which of the following aspects determines whether the interviewer is qualified for this position?DB is a job that requires care, responsibility, stability, and overall pla

----------------------------------+------------------------------+------------+----------------------+--------- ---------------------Server1 | 192.168.4.3 | 3306 | 0 | Master, RunningServer2 | 192.168.4.4 | 3306 | 0 | Slave, Running----------------------------------+------------------------------+------------+----------------------+--------- ----------------------Store data or query data on the client Access Proxy4-3mysql> CREATE DATABASE Bbsdb;Query OK, 1 row Affected (0.00 sec)

permission to access the data table1143: The current user does not have permission to access fields in the datasheet1146: Data table does not exist1147: User access to the data table is undefined1149:sql statement Syntax error1158: Network error, read error, please check network connection status1159: Network error, read timeout, check network connection status1160: Network error, write error, please check network connection status1161: Network error, write timeout, please check network connect

Tags: MySQL dba responsibility quality Skillsas a DBA, the core goal is the ultimate goal: to ensure the stability, security, integrity and high performance of the database management system. MySQL DBA There are two kinds: one is to develop the

Tags: 3.3 3.4 lease Oldboy img DMI win pre CMakeThis article is the third section of the old boy MySQL DBA Advanced OPS course to learn the notes, thanks to the old boy teacher, Iis a rookie if there is an incorrect written place please the great God timely guidance.4. Source code CMake way to compile and install MySQL5.5.324.1 Download MySQL installation package

ProFTP the configuration file on the server#修改Authorder MOD_SQL.C#注释取消LoadModule MOD_SQL.CLoadModule MOD_SQL_MYSQL.C#增加sqlconnectinfo [Email protected]:3306 admin Admin 30Sqlauthtypes Backend PlainTextSqlauthenticate UsersSqlnamedquery get-user-by-name Select "userid, passwd, uid, GID, homedir, Shell from Users WHERE userid = '%u ' and disable =0 "Sqluserinfo Custom:/get-user-by-nameSqlgroupinfo groups groupname GID membersSqldefaulthomedir/homePROFTP MySQL