Top "Failover" questions

The automatic switching to a redundant or standby computer server, system, hardware component or network upon the failure or abnormal termination of the previously active application, server, system, hardware component, or network.

What is a database transaction?

Can someone provide a straightforward (but not simpler than possible) explanation of a transaction as applied to computing (even if …

database concurrency transactions theory failover
Apache proxy load balancing backend server failure detection

Here's my scenario (designed by my predecessor): Two Apache servers serving reverse proxy duty for a number of mixed backend …

apache load-balancing detection reverse-proxy failover
Determine Active Node in SQL Failover Cluster

Does anyone know how to determine the active node of a SQL Active-Passive Failover Cluster programmatically from T-SQL? @@SERVERNAME only …

sql-server tsql failover
What is the difference between failover vs high availability?

According to my reading on jboss documentation it says, We define high availability as the ability for the system to …

cluster-computing replication high-availability failover downtime
How does Hadoop Namenode failover process works?

Hadoop defintive guide says - Each Namenode runs a lightweight failover controller process whose job it is to monitor its …

hadoop hdfs hadoop2 failover namenode
WebLogic load balancing

I'm currently developing a project supported on a WebLogic clustered environment. I've successfully set up the cluster, but now I …

weblogic load-balancing cluster-computing failover
Replicate selected postgresql tables between two servers?

What would be the best way to replicate individual DB tables from a Master postgresql server to a slave machine? …

postgresql replication rsync failover
Automatic failover with SQL mirroring and connection strings

I have 3 servers set up for SQL mirroring and automatic failover using a witness server. This works as expected. Now …

sql-server connection-string failover mirroring
Log4j2's FailoverAppender Error: appender Failover has no parameter that matches element Failovers

When I compile my spring 3.2.9 web application using log4j 2.1, this error appears in the console: 2015-02-02 12:08:25,213 ERROR appender …

java logging log4j2 failover appender
Failover & Disaster Recovery

What's the difference between failover and disaster recovery?

failover high-availability disaster-recovery