postgresql failover cluster

least 3 node server (English is not good, we can see it)Related documents: http://docs.couchbase.com/admin/admin/Tasks/tasks-nodeFailover.html3, the effect of testing, heheFinally said two, the elder brother spends nearly 3 days to ponder Couchbase's cluster and the failover plan, the middle difficulty, but fortunately did not give up, finally solves the problem.Then the problem came, brother busy to Busy,

Slave status\g ' |grep "Slave_io_running" | awk ' {print $} ')slave_sql_running=$ (MYSQL-U$USER-P$PASSWORD-E ' show Slave status\g ' |grep "Slave_sql_running" | awk ' {print $} ')echo "plese fix the server of $IP error now!" > $mysql _path/letterletter= $mysql _path/letterMYSQL-P$PASSWORD-E "Use test;"if [[$?! = 0]]ThenMail-s "{$ip}_database connect lost the srcprits fix It Now"$email Killall-9 HeartbeatKillall-9 mysqld/etc/init.d/mysqld startSleep $sleeptimeMYSQL-P$PASSWORD-E "Use test;"If [$?

3 pieces in front of us. The full configuration of SQL Server Failover cluster+ AlwaysOn is described, and today we'll show you how to add multiple client access points to AlwaysOn, in general, There is only one single availability group listener (Listener) per availability group, but in some extreme cases multiple listeners may be created for the same availability group. For example, some historical proble

Label:Original: SQL Server 2012 exception Issue (i)--failover cluster + mirroring environment causes job execution to failFirst of all, thank you. My colleagues first found this issue, thanks: Xiangfei, Zhi-Gang, Hye-youngRecently found a strange problem in the production environment;Environment: WINDOWS 2012+sqlserver SP1, two-node failover

Tags: SQL Server database AlwaysOn3. installation"fail-over cluster"function3.1 Open Server Manager on SQL01 and click on "Add Roles and Features"650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M01/73/2B/wKiom1X21zzR-bvUAAJZ73g2tdI680.jpg "title=" 1.png " alt= "Wkiom1x21zzr-bvuaajz73g2tdi680.jpg"/>3.2 Next650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M02/73/28/wKioL1X22X2zx7ZjAAKs1jrYFl8435.jpg "title=" 2.png " alt= "Wkiol1x22x2zx7zjaa

protected] ~]# ll/mnt/Total dosage 20-rw-r--r--1 root root 884 August 13:50 Inittabdrwx------2 root root 16384 August 13:49 lost+found13. DRBD Dual Main Mode configuration exampleThe first time you set a node to become the primary node in DRBD 8.4[Email protected] ~]# Drbdadm primary--force R0Example of configuring a resource dual Master model:Resource R0 {NET {Protocol C;Allow-two-primaries Yes;}startup {Become-primary-on both;}Disk {Fencing Resource-and-stonith;}Handlers {# Make sure the othe

Redis + keepalived master-slave cluster construction and failover Design ideas:When Master and Slave are working normally, master is in charge of the service, Slave is responsible for standby; When Master hangs up, Slave is normal, Slave takes over the service while shutting down the master-slave copy function; When Master returns to normal, the data is synchronized from Slave , after synchronizing the dat

Label:Catalogue [-] One, high availability, load balancing, replication of several scenarios comparison: Two, multi-node cluster scheme comparison 9.3 Official Document (Chinese): http://58.58.27.50:8079/doc/html/9.3.1_zh/high-availability.html replication, cluster, and connection pooling: https://wiki.postgresql.org/wiki/Replication,_Clustering,_and_Connection_Pooling

PostgreSQL-based scalable, open-source Big Data cluster database: POSTGRES-XLhttp://www.postgres-xl.org/Postgres's-XL is a scale-out open source SQL database cluster based on the PostgreSQL database, with sufficient flexibility to handle different database workloads: OLTP Write-Frequent business Requires M