Translation: SET clause (submitted to the MariaDB official Manual), clause mariadb
This document is the description of the SET in the mariadb official manual.
Original article: https://mariadb.com/kb/en/set/Https://mariadb.com/kb/zh-cn/set/ I submitted to the MariaDB official manualSyntax
SET variable_assignment [, var
Tags: mysql multi-instance mariadbFirst, Background introductionMARIADB Multi-instance is to open a number of different service ports on a single machine, running multiple MySQL service processes, through different sockets to listen to different service ports to provide their own, non-interference services, each instance can be isolated according to different configuration file settingsSecond, the Operation procedure1. Install mariadb (slightly)2. Ini
Tags: wget blog set BSP ref dir nbsp Address srv1. Preparation MN: The cluster Management Server is used to manage other nodes of the cluster. We can create and configure new nodes on the cluster, restart, delete, or back up nodes from the management node. DB2/DB3: This is the layer in which the process of inter-node synchronization and data replication occurs. D
Centos7: The correct command for installing mariadb, centos7mariadb
The centos7 System of linode is used, and mariadb is used by default when mysql is installed.
However, no matter whether you use the linode official website instructions or the basic installation method found by Baidu, the installation fails.
Always prompt this sentence:
ERROR 2002 (HY000): Can't connect to local MySQL server through socket
Install MariaDB and MySQL
MariaDB can be used to replace enhanced MySQL versions, but MariaDB can also be installed when MySQL is installed. (This makes sense. For example, you want to migrate data from one database/application to another database/application .)
The following describes how to install MariaDB when MySQL
write operations, no delay replication, no data loss, when a server down, the standby server will automatically take over.First, based on Galera cluster to achieve MySQL high availabilityPreparation Environment: CentOS 7
Node 1
ip:172.18.42.200
Node 2
ip:172.18.42.201
Node 3
ip:172.18.42.202
1. Deploy Node 1(1) Install Galera service[email protected] ~]# Yum install
[TOC]MARIADB Installing 11.6 mariadb installation 1. Download the installation package to the Unified directory/usr/local/src/[[emailprotected] ~]# cd /usr/local/src/[[emailprotected] src]#wget https://downloads.mariadb.com/MariaDB/mariadb-10.2.6/bintar-linux-glibc_214-x86_64/maria
Tags: root gen error log end 1.5 execution disk cannot be updatedThe logs in MYSQL/MARIADB are broadly divided into the following categories:Query LogGeneral Query log:Slow query log:error LogBinary logRelay LogTransaction logA brief introduction to these kinds of logs, logs for our analysis of MySQL service has a very important help;Query log:General Query log: The default is closed, because all the query statements will be recorded;
Compile and install MariaDB-10.0.20 under CentOS 6.6
System Environment: CentOS6.6 (Final)MariaDB port: 3309 (because MySQL is already installed on the local machine and you do not want to delete MySQL)
# Wget http://mariadb.nethub.com.hk//mariadb-10.0.20/source/mariadb-10.0.20.tar.gzCreate
Configure GTID for MySQL and MariaDB master-slave Clusters
I wrote MySQL and MariaDB traditional master-slave cluster configuration, which is very mature. Since Mysql5.6 and MariaDB10.0, a new master-slave GTID solution has been available. However, the two systems have branches in this version. The specific implementation and configuration methods are different.
Microsoft Cluster Server Architecture
Consisting of three key parts:
Cluster Service
Resource Monitoring
Resource and cluster management extension DLL
Cluster Service
The cluster service (composed of event processor, failover Manager/Resource Manager, Global Update
Simple use of Mysql-Cluster-7.5 to build a database cluster, cluster to build
Reading directory
Preface
Several Concepts in mysql cluster
Architecture diagram and description
Download mysql cluster
Before installing mysql cluster
This article will be through two computers Here's a quick introduction to how the Windows platform builds MySQL clusters. MySQL cluster supports multiple computers, the MySQL cluster built in this article for example, two, one (IP for 192.168.24.33) deployment Management node, data node and SQL node, and another (IP for 192.168.24.82) deployment data node and SQL node.In practice, do not deploy the manageme
Install the MARIADB version of the package with the Galera cluster feature first:Official Document: https://mariadb.com/kb/en/mariadb/getting-started-with-mariadb-galera-cluster/The replication implemented by Galera cluster differ
Oracle cluster and cluster tables, Oracle cluster tables Oracle clusters and cluster tables
A cluster consists of multiple tables that share the same data block. It stores the related rows of these tables in the same data block, which can reduce the disk read volume required
Tags: mariadb and mysql co-mariadb run concurrently with MySQL[[email protected] ~]#groupadd mariadb - g Wuyi3[email protected] ~]#useradd-u3 - g mariadb -s/sbin/nologin-d/home/mariadb mariadbDownload the binary installation package to the/root directory from
The previous article explains the process of building the Redis cluster based on Redis cluster, and continues to explain the increase and decrease of node in the Redis cluster below. adding nodes in a cluster
Let's test again, add a new node, in 2 cases, 1 as the primary node, 2 as a node from the node. Let's try this
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