percona galera

http://blog.chinaunix.net/uid-16844903-id-4054635.html website Link: http://www.percona.com/doc/ Percona-monitoring-plugins/1.0/cacti/galera-templates.html Galera Writeset Traffic Galera Writeset Count Galera Writeset Size

| wsrep_incoming_addresses | 172.18.8.50: 3306,172.18 .8.49: 3306 | connected database | wsrep_cluster_conf_id | 18 | wsrep_cluster_size | 2 | number of cluster members | Primary | bb5b9e17-66c8-11e3-86ba-96854521d205 | cluster ID | wsrep_cluster_status | Primary | master server | wsrep_connected | ON | whether to connect | wsrep_local_index | 1 | wsrep_provider_name | Galera | wsrep_provider_vendor | Codership Oy | Wsrep_provider_version | 2.7

Mariadb-galera-10.0.19oncentos6.5 **************************************** ************************************* 0. use Cases ************************************** **************************************** database software: mariadb-galera-10.0.19-linux-x86_64.tar.gz cluster management: galera-25.3.5-1.rhel6.x86_64.rpm node Sync Mode (xtrabackup, rsync):

applications Master has more than one library, each library transaction can be parallel, because the lock on a library, B library is not affected, but reflected in the binary log must have sequential order So there is no way to avoid slave lag, so after MySQL 5.5 introduced multithreading mechanism. supports one from multiple and multi-threaded replication Multi-threaded replication//per database only one thread is enabled //But the main library cannot be the same multithreaded replication: sti

Galera 10.0.20 on CentOS 6.60. Usage ScenariosDatabase software: mariadb-galera-10.0.20-linux-x86_64.tar.gzCluster Management: galera-3-25.3.10Node synchronization mode (Xtrabackup,rsync): percona-xtrabackup-2.2.8-5059.el6.x86_64.rpmNode synchronization using sockt:socat-2.0.0-b7.tar.gzInstallation of

First, why do you want to do galera cluster asynchronous replicationThe Galera cluster solves the problem of high database availability, but there are limitations, such as time-consuming transactions that can lead to a dramatic drop in cluster performance and even congestion. Unfortunately, similar reports and other business needs to do a large number of data query operations, in order not to affect the

[email protected] ~]# Yum install Bison bison-devel check check-devel boost Boost-devel scons socat perl-dbd-mysql[Email protected] ~]# RPM-IVH libev-4.15-1.el6.rf.x86_64.rpm[Email protected] ~]# RPM-IVH percona-xtrabackup-24-2.4.9-1.el6.x86_64.rpm[Email protected] ~]# tar zxvf mysql-wsrep-5.6.38-25.21.tar.gz[Email protected] ~]# CD mysql-wsrep-5.6.38-25.21[Email protected] mysql-wsrep-5.6.38-25.21]# CMake. \-dcmake_build_type=release \-dcmake_install

Tags: Percona mode workflow Database transparent clone mysq VPD BinFirst, Galera cluster introduction 1, galera cluster: 集成了Galera插件的MySQL集群，是一种新型的，数据不共享的，高度冗余的高可用方案，目前Galera Cluster有两个版本，分别是Percona Xtradb Cluster及MariaDB Clust

install3.2 Compiling and installing percona-xtradb-cluster-5.7.19-29.22It is best to uninstall the local MySQL database before compiling the installation. rpm-qa | grep mysql （注意大小写，如果mysql不行就换MySQL） yum -y remove mysql的包名Data and/ETC/MY.CNF in/var/lib/mysql will not be removed after uninstallation, and will be removed manually if determined to be useless. rm -f /etc/my.cnf rm -rf /var/lib/mysqlCreate a MySQL user name and foldermkdir /data/6600 -pmk

-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

MariaDB Galera Cluster deployment (how to quickly deploy MariaDB Cluster) MariaDB, as a branch of Mysql, is widely used in open-source projects, such as the Popular openstack. To ensure the high availability of services and improve the load capacity of the system, cluster deployment is essential.MariaDB Galera Cluster Introduction MariaDB cluster is a MariaDB synchronization multi-host cluster. It only supp

MARIADB, as a branch of MySQL, is already widely used in open source projects, such as hot OpenStack, so the cluster deployment is essential to ensure high availability of the service while increasing the load capacity of the system.MariaDB Galera Cluster IntroductionThe MARIADB cluster is a MARIADB synchronous multi-host cluster. It only supports the XTRADB/INNODB storage engine (although there are support for MyISAM experiments-see WSREP_REPLICATE_M

How to build a Percona XtraDB Cluster and perconaxtradb I. Environment preparation Host IP host name operating system version PXC 192.168.244.146 node1 CentOS7.1 Percona-XtraDB-Cluster-56-5.6.30 192.168.244.147 node2 CentOS7.1 Percona-XtraDB-Cluster-56-5.6.30 192.168.244.148 node3 CentOS7.1 Percona-XtraDB-Cluster-56-5.

Tags: mysql mariadb PXC galeraFirst, Background introductionEither Binlog or Gtid, the essence of which is in the form of I/o_thread and Sql_thread synchronization, because the replication delay can not avoid the criticism, based on the MARIADB introduced Galera cluster to solve the problem.Second, Galera cluster introductionGalera cluster and traditional replication methods, not through I/o_thread and Sql_

DirectoryOpenstack-mitaka Overview of High AvailabilityOpenstack-mitaka High-availability environment initializationOpenstack-mitaka High-availability Mariadb-galera cluster deploymentOpenstack-mitaka High Availability of memcacheOpenstack-mitaka High Availability pacemaker+corosync+pcs High availability clusterOpenstack-mitaka Highly Available certification services (Keystone)Openstack-mitaka High Availability Computing Service (Nova)Openstack-mitaka

Tags: mysql MariaDB galera db cluster192.168.3.130 Clustera GALERA-DB01192.168.3.131 Clusterb GALERA-DB02192.168.3.129 Clusterc galera-db03The following 1-3 steps are required to perform the three1: Uninstall MySQL (because MySQL and mariadb are incompatible with MySQL)Yum Erase mysql-server MySQL mysql-devel mysql-lib

First, MySQL Galera introduction1. Galera characteristicsMysql/galera is a multi-master cluster of Mysql/innodb with the following features:1) Synchronous replication2) active-active multi-Master topology3) Any node in the cluster can read and write4) Automatic identity control, failure node automatically separated from the cluster5) Automatic node access6) True

Tags: des blog http os io for AR art divWhen I started working in Open Stack, I had to investigate about the HA of the Nova component. Unfortunatly the Nova configuration needed a single entry point-to-connect to the MySQL database. The solution, came to me is to use HAProxy on top of my existing Galera cluster. I. IntroductionReminder:i'll use the configuration of my previous Article:mysql multi-master réplication with

Setup of MySQL/MariaDB Galera cluster in Linux MariaDB Introduction MariaDB is a MySQL Branch maintained by the open-source community. It is developed by MySQL founder Michael Widenius and uses a GPL license. MariaDB is designed to be fully compatible with MySQL, including APIs and command lines, so that it can easily become a substitute for MySQL. For more information, see: Http://mariadb.org/(official website) Introduction to

Fragmentation of the cluster When a cluster is split into several individual groups due to network reasons (a group may be a single node or several interconnected nodes), the data is inconsistent and may result in brain fissures and inconsistent data. In this case, only one set of nodes can continue to serve, the state of this set of nodes is primary. When this happens, Galera cluster launches a special quorum algorithm to elect a component as the pri