postgresql multi master

library to be used as a synchronous backup of offsite data. Starting with the 5.7 version of MySQL to support multi-source master-slave replication (multi-source Replication) is to send multiple database (Master) datasets to 1 from the library (Slave), which also has the advantages of

=============================================================================================================== ==============192.168.163.132 (in the Minion of thinking)RPM-IVH https://dl.fedoraproject.org/pub/epel/epel-release-latest-6.noarch.rpmYum Install Salt-minion-y[Email protected] ~]# Less/etc/salt/minion | GREP-VP "^$|^#"Master-192.168.163.129Id:zsk-db-01=========================================================================================

Tagged: Server server multithreading MySQL styleGtid,global Transaction Identifiers, the global transaction identifier consists of a unique identifier for the server's UUID and transaction ID number. After MySQL 5.6, the transaction header records the server UUID, which is very simple to track.Uuiduniversally unique Identifier, globally unique identifier. A is master,b, C is slave, and when a goes down, B becomes new

group replication can run in two modes. 1. In single-master mode, group replication has the auto-select Master feature, and only one server member accepts updates at a time.2. In multi-master mode, all server members can accept updates at the same time.group replication differs from asynchronous

This article mainly introduces how Yii implements master-slave read/write splitting for multiple databases. it is a very practical technique to implement the separation of master-slave read/write for multiple databases by extending the Yii database class, for more information about how Yii implements master-slave read/write splitting for multiple databases, see t

failed hmaster task, the hbasemaster takes over and allocates hreginserver tasks. When the hreginserver fails, Zookeeper notifies the hmaster to allocate hreginserver tasks. This fully demonstratesHbaseThe forwarding function is effective.: Saliva:1,HbaseThe efficiency of failed Forwarding is relatively slow, and it is not expected to be able to switch and restore in 1-2 seconds. Maybe it is because I have not found any parameters that can speed up the process of failed forwarding and recovery,

copied to two data files from the library, by the way, the master-slave assignment is also assigned to two from the library, as follows [email protected]: Then perform two service installations from the library: After completion, open the service as follows: Then make the connection, as follows: Connected, will not open the database for master-slave replication, because the two ibdata1 files from th

after the Binlog log in the specified location3. After the master server receives I/O requests from the slave server, the I/O thread on the master server reads the Binlog log content after the location of the slave request and returns the I/O thread to the slave server side of the sending request. The returned information, in addition to the Binlog log, includes the new Binlog file name and the next specif

The new version of mysql builds multi-threaded master-slave replication. New mysql build multi-thread master-slave replication 1: yuminstall-ymysql-community-cl new mysql build multi-thread master-slave replication I. First, get

About Kubernetes Master Multi-node and high-availability, the online approach takes a active-standby approach, namely:Using software such as pacemaker makes certain master services (Apiserver,scheduler,controller-manager) run only one instance at a time. Specifically, if you have more than one master node, Scheduler,co

Connection from library: Mysql-s/data/mysql_data/mysql2/mysql3307.sock Now we are ready to initialize replication from the library instance. Execute the following command from the library instance: slave> slave STOP; Next, you will enter a change MASTER command: slave> change MASTER to master_host= ' 127.0.0.1 ', Master_user= ' Repl ', -Master_password= ' Repl ' Master_log_file= ' mysql-bin-log.000001 ', m

/3307/mysql STARTNETSTAT-NUTLP | grep 330tcp 0 0 0.0.0.0:3306 0.0.0.0:* LISTEN 27934/mysqld tcp 0 0 0.0.0.0:3307 0.0.0.0:* LISTEN 28653/mysqld echo "#mysql Multi Instances" >>/etc/rc.localecho "/data/3306/mysql start" >>/etc /rc.localecho "/data/3307/mysql start" >>/etc/rc.localtail-3/etc/rc.local#mysql Multi