The N-to-1 recovery system has one configuration in which you prepare one standby node (recovery server) for N number of executing nodes. When using a global transaction in a configuration with redundant J2EE servers, use the N-to-1 recovery system to terminate the transaction when an error occurs in a particular J2EE server. Use the management portal to build this system. For details on the management portal, see the uCosminexus Application Server Management Portal User Guide. This section describes the settings of the N-to-1 recovery system.

Execute applications in N number of executing node Application Servers. If a failure occurs in Application Server in which applications are running, the HA monitor software detects this failure and the recovery server terminates the transaction running on Application Server in which the failure occurred. Following this, application continues processing in the remaining executing node Application Servers that are operating.

Note that you can use the operations of the N-to-1 recovery system only in AIX, HP-UX, or Linux.

For details on the functionality, see 19.2 Overview of the N-to-1 recovery system. For system configuration, see 3.11.5 Configuration for using a recovery server (N-to-1 recovery system) in the uCosminexus Application Server System Design Guide. For HA monitor, see the manual High-reliability System Monitoring Functionality HA Monitor.

Organization of this section

19.5.1 Procedure for setting the N-to-1 recovery system

19.5.2 Setting the environment of the cluster server

19.5.3 Editing the configuration files

19.5.4 Setting the environment of the HA monitor

19.5.5 Creating a shell script

19.5.6 Setting the server-compliant environment

19.5.7 Setting the LAN status

19.5.8 Setting Application Server