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] #chkconfig--add mysqld] #service mysqld startcentos7.4 Binary Installation mariadb-10.2.15 ] #useradd-R-d/data/mysqldb-s/sbin/nologin MySQL] #tar xvf mariadb-10.2.15-linux-x86_64.tar.gz-c/usr/local] #cd/usr/ Local] #ln-s mariadb-10.2.15-linux-x86_64/mysql] #chown-R root:root/usr/local/mysql/#修改文件的所属组] #ls/usr/local/mysql/ Bin] #echo Path=/usr/local/mysql/bin: $
: MariaDB [mysql]> update user set Password=p Assword (' qhdlink.com ') where user= ' test '; 3.mysqladmin Tools: # mysqladmin-uusername-hhostname-p Password ' new_password ' NOTE: The MySQL user performing this operation needs to have Modify permission on the Mysql.user table; A workaround for forgetting the MySQL administrator's password: method one: 1. Stop the current MySQL or maria
MARIADB multi-source Replication (mariadb Multi-master replication)Multi-master replication is added to the mariadb-10.0. Modified syntax:there is a corresponding connection_name for each replication thread, and Connection_Name is the value of the default_master_connection variable, if you want to manipulate the corresponding replication thread, This variable ne
MySQL was originally developed by Michael Widenius, and Sun was acquired by Oracle shortly after Mr. Michael sold MySQL to Sun for $1 billion. In Oracle acquisition Mr. Michael is worried that MySQL will have a closed-source risk in the future, a new project named after his daughter Maria's name--mariadb,mariadb the default storage engine is Maria, not MyISAM. Maria can support transactions, but transaction
MySQL Cluster: use MariaDB-Galera integrated version of MariaDBCentOSMysql cluster under CentOS6 BitsCN.com Speaking of mysql clusters, it is estimated that many people will first think of mysql's built-in replication or mysql-mmm. Mysql-mmm is actually based on the built-in replication of mysql, but the encapsulation is better, but it is still difficult to configure, and it is powerless to dynamically increase or decrease the master node. By chance,
/mariadb/repositories/#mirror =opencasdistro=centosdistro_release= centos7-amd64–centos7version=10.1 three) installation MariaDB Run the Yum install mariadb-server mariadb-client command installation MariaDBor sudo yum install mariadb
Tags: mariadb mysql centos galeraMARIADB Galera cluster Installation:Operating system: Centos7.4 versionNumber of clusters: 3 nodesHost information: 192.168.153.142 node1 selinux=disabled firewalld off192.168.153.143 Node2 selinux=disabled Firewalld Close192.168.153.144 node3 selinux=disabled Firewalld CloseBuild steps1. Mutual parsing between hosts: Three nodes are executedVim/etc/hosts192.168.153.142 Node1192.168.153.143 Node2192.168.153.144 Node32.
Translation: Value assignment operator (: =) (submitted to the MariaDB official Manual), operator mariadb This article is a translation of the value assignment operator (: =) in the mariadb official manual. Original article: https://mariadb.com/kb/en/assignment-operator/Https://mariadb.com/kb/zh-cn/assignment-operator/ I submitted to the
Tags: mysql mariadb master-slave replication multi-instance MySQL master-slave replicationMySQL Multi-instanceMySQL multi-instance, simple to understand is on a server, the MySQL service to open a number of different ports (such as 3306, 3307,3308), running multiple service processes. These MySQL service processes use different sockets to listen to different data ports, thus providing their own services independently of each other. On the same server,
back up all the databases. $ mysqldump--all-databases--user=root--password--master-data > Backupdatabase.sql Dumping databases The above command backs up all the databases and stores them in the Backupdatabase.sql file in the current directory. 2. Uninstall MySQL First of all, we have to move the my.cnf file to a safe place. Note: When you uninstall the MySQL package will not automatically delete the my.cnf file, we do this just in case. When MARIADB
to deploy the MariaDB. Otherwise, the "MySQL service masked" error occurs.Second, installation mariadb 1. Installing the database environment [Email protected]:~$ sudo aptitude install-y mariadb-server mariadb-client 2. Installing the DB instance [E
Tags: mysql mariadbI. Introduction of MARIADBMARIADB is a relational database program that MySQL was re-developed by the original author after being acquired by Oracle, and because it is the same author, it is very similar to MySQL in operation, and the versions correspond to each other. such as: MariaDB5.5 corresponds to the 5.5 version of MySQL, but the corresponding version of the mariadb from Mysql5.6 to become more than 10, such as: MariaDB10.1 c
, posix_getpwuid, delimiter, posix_getsid, posix_getuid, delimiter, posix_kill, posix_mkfifo, delimiter, posix_setsid, posix_setuid, posix_strerror, posix_times, posix_ttyname, posix_uname # List functions that can be disabled by PHP. if some programs need this function, they can be deleted and disabled. Expose_php = Off # Disable Display of php version information Short_open_tag = ON # php short labels supported Open_basedir =. :/tmp/# set to allow access to the current directory (that is, the
1, start mariadb Install complete mariadb, start mariadb First, two commands can be Systemctl Start mariadb Or Service MARIADB Start Setting up Boot Systemctl Enable MARIADB Or: Chkconfig
Connect to Mariadb and mariadb remotely // This article describes how to connect to the Mariadb database on centos7. // There is no difference with mysql Package test. java. mysql; import java. SQL. connection; import java. SQL. driverManager; import java. SQL. SQLException; import java. SQL. statement; public class TestMysql {public static void main (String [] a
, it is possible to go to MySQL to find. Here I am ok here.# ls support-files/The difference between my-huge.cnf, MY-LARGE.CNF, MY-SMALL.CNF, and my-medium.cnf is that the size of the cache is different, some buffers, some caches, and their role is to specify the appropriate cache depending on the size of your memory. Enable your MySQL to achieve more efficient performance.MY-SMALL.CNF the smallest file as we do the experiment, just use this minimal.MY-HUGE.CNF the largest file# CP support-files
= 16MThread_concurrency = 4Innodb_file_per_table = OnSkip_name_resolve = On##################################### The following content is optional ########[Mysqldump]QuickMax_allowed_packet = 16M[MySQL]No-auto-rehash[Myisamchk]Key_buffer_size = 128MSort_buffer_size = 128MRead_buffer = 2MWrite_buffer = 2M[Mysqlhotcopy]Interactive-timeout#############################[Mysqld_safe]Log-error=/var/log/mariadb/mariadb.logPid-file=/var/run/
MariaDB binary installation, mariadb binary Download the binary installation package wget http://mirrors.neusoft.edu.cn/mariadb//mariadb-10.2.12/bintar-linux-x86_64/mariadb-10.2.12-linux-x86_64.tar.gz Create a mysql user and group useradd -r mysql -s /sbin/nologin Decompres
display "Welcome to nginx!" Indicates that Nginx is operating normally.Then access the http://ip/phpinfo.php in the browser, if PHP can parse normally, will appear PHP installation configuration and feature List statistics.Three. Yum Install MARIADB DatabaseDelete all mysql/mariadb-related RPM packagesMySQL is no longer included in the CentOS 7 source, but instead Mari
CentOS 7 installation of MariaDB 10 and related configuration, centosmariadb Step 1: Add MariaDB yum Repository Add the MariaDB yum configuration file MariaDB. repo in the/etc/YUM. repos. d/directory of the CentOS operating system. Vi/etc/yum. repos. d/MariaDB. repo Add the
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