galera cluster

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Label:The Percona XtraDB cluster is a high availability and extensibility solution for MySQL users, based on Percona Server. It includes the Write Set replication patch, which uses the Galera 2.0 library, which is a synchronous multi-host replication plug-in for transactional applications. Percona XtraDB Cluster Features: (1) Synchronous replication, the transact

WAS cluster series (12): Build a cluster: Step 10: view the was cluster mechanism through the verification program. To better understand the working mechanism of the was cluster, let's refresh the test program several times on a node and pay attention to the following parameters: "Local address" and "Local port", for e

The network traffic of full node replication from single machine to cluster session management mode one is increasing with the increase of the number of nodes, and it is precisely because of this factor that it is impossible to build larger clusters, in order to make the cluster nodes more larger, The first solution is the data replication traffic growth problem, the following will describe another way of

WAS cluster series (17): Operation Flow for modifying a configuration under WAS (Single Node + Cluster), was Cluster **************************************** ******************************** **************** Original Works are from the blog of "Deep Blue blog". You are welcome to repost them. Please indicate the source when you repost them. Otherwise, the copyrig

WAS cluster series (10): Build a cluster: Step 8: configure the cluster on the WAS console. Enter the IP address of the DM Management Server to log on to the WAS console (http: // 10.53.105.63: 9060/ibm/console/), as shown below: (1) view node synchronization status (2) Start the HTTP service Node 1 (DM server ): Click the options in the legend to start the H

Label:The extract part is shown here, as below, What's the difference in using Clustervs using replication? In a replication system, one MySQL master server updates one or more slave servers. The transactions are committed sequentially, so a slow transaction can cause the server to lag behind the primary server for a period of time. This also means that if the primary server fails, Then from the server may be missing the last small portion of the transaction log. If you are using a transactional

Tags: SQL ges share sha principle COM data. com consistencyMySQL 8.0.11 InnoDB cluster high Availability cluster Deployment Operations Management manual One InnoDB cluster principle introduction author Fanglian innodb cluster principleInnodb Cluster leverages the Pxos protoc

Cluster Introduction:Galera is a MySQL (also supported Mariadb,percona) synchronous multi-master cluster software that currently only supports the InnoDB engine.Main functions: Synchronous replication True multi-master that all nodes can read and write to the database at the same time Automatic node member control, failed nodes are automatically cleared New node joins data automatic rep

-mysql perl-time-hiresConfiguring the Epel LibraryWget-o/etc/yum.repos.d/epel.repo Http://mirrors.aliyun.com/repo/epel-7.repo3. Compiling the installation3.1 Compiling and installing Percona-xtrabackupcd/usr/local/src/percona-xtrabackup-2.4.5/CMake./-dbuild_config=xtrabackup_release \-dwith_man_pages=off \-ddownload_boost=1 \-dwith_boost= "/usr/local/boost"Make-j 4 make install3.2 Compiling and installing percona-xtradb-cluster-5.7.19-29.22It is best

Percona XtraDB Cluster cluster Environment establishment and validation guidePercona XtraDB Cluster is a clustering scheme for MySQL database. and compatible with the MySQL server Community version, Percona Server, and MariaDB.First, install Percona XtraDB on Ubuntu ClusterLab Environment:Suppose you have 3 computer devices that have an Ubuntu system installed an

WAS cluster series (16): WAS cluster deletes the summary file, cluster Summary **************************************** ******************************** **************** Original Works are from the blog of "Deep Blue blog". You are welcome to repost them. Please indicate the source when you repost them. Otherwise, the copyright will be held legally responsible.

Enter the IP address of the DM Management Server to log on to the was Console (http: // 10.53.105.63: 9060/IBM/console/), as shown below: (1) view node synchronization status (2) Start the HTTP service Node 1 (DM server ): Click the options in the legend to start the HTTP Management Service and the HTTP service on node 1, for example: Node 2. Similarly, start the HTTP service.(3) create a web server Modify the following configurations as needed, for example: After the configuration i

Tag: End disk determines positive wget results based on LAN classPrerequisite: First install Redis, reference: http://www.cnblogs.com/EasonJim/p/7599941.htmlNote: Redis cluster cluster mode can be used to dynamically add nodes and Downline nodes, which is very convenient to use.The following tutorials are mainly built through the official documentation:Https://redis.io/topics/

WAS cluster series (7): Build a cluster: Step 5: Install WAS patch and cluster was Check the "Task Manager" before installation. If a java Process exists, disable it and disable WAS services. Find the WAS Update Wizard startup item in the Start Menu, as shown in: (1) After the installation page is displayed, click "Next" to start, go to the following page, sele

To better understand the working mechanism of the was cluster, let's refresh the test program several times on a node and pay attention to the following parameters: "local address" and "local port", for example: First time: Second: Third time: Fourth: Make a summary of the above results, and you will find that the rules are clear at a glance, such: Refresh count Local Address Local Port Server First Login 10.53.105.6

shown in: The configuration of another node is completed as follows: You can verify the following web server configurations. Click "Stop" and "start" to view the symptoms, as shown below: (4) set console preferences (5) create a websphere application server Cluster and stop the default websphere application server, as shown below: Delete the stopped server as follows: Create a cluster as follows

Tags: User erro mysql tps row dev error ati rateMySQL Cluster setup-multi-Master modeThis article uses the Galera build MySQL cluster, realizes each MySQL is the main server, does not have the master-slave division.Environment:Three mysql5.7 servers.To install the MySQL cluster:Preparation before installation:# echo ' 192.168.1.2 mysql1 ' >>/etc/hosts# echo ' 192

0. PrefaceOverall architecture directory: ASP. NET core distributed project-Directoryk8s Schema Catalog: Kubernetes (K8S) cluster deployment (K8S Enterprise Docker container cluster Management) series catalogfirst, server settings1. Set the selinux of each server to disabledHow to set it up:Vi/etc/selinux/configWill selinux=disabled, then save, and then execute the command: Setenforce 0, make it effective.2

Tags: Service host threeSystem environment: CENTOS7 64-bitMariaDB version: mariadb-galera-server5.5Host Planning:192.168.0.233 client233192.168.0.234 client234192.168.0.235 client235Before installing three hosts, SELinux, hostname, and iptables must be set up first. As follows:(1) selinux=disabled(2) Systemctl stop iptablesSystemctl disables iptablesIptables-fService Iptables Save(3) Vi/etc/hosts192.168.0.233 client233192.168.0.234 client234192.168.0.