Job Management Partner 1/Base User's Guide
In a cluster system, you must start the log file trapping function separately on each physical host. You cannot start the function by specifying a logical host. However, you can specify whether JP1 events will be forwarded to the event service on a logical host where they can be centrally managed. Configure a forwarding destination that works well with how your system is run.
By default, JP1 events are registered in the event service on the physical host. To register them in the event service of a logical host, execute the jevlogstart command, specifying the event server name of the logical host in the -s option.
The following describes how to monitor log files on shared and local disks.
- Organization of this subsection
- (1) Monitoring log files on a shared disk
- (2) Monitoring log files on local disks
(1) Monitoring log files on a shared disk
To monitor log files on a shared disk, you must coordinate the start and end of the log file trapping function with the startup and shutdown of the logical host. In the event of a failover on the primary node, stop the log file trapping function on the failed server, and then restart the function on the server that has taken over as the active system.
Leave the shared disk allocated so that it can be accessed while log files are being monitored. If you change the shared disk allocation during file monitoring, problems such as errors in the monitoring process and control failure in disk space allocation and deallocation could occur.
An example of a configuration for monitoring log files on a shared disk is shown in the following figure.
Figure 3-2 Configuration example for monitoring log files on a shared disk
(2) Monitoring log files on local disks
To monitor log files on the local disk of both the primary and secondary nodes, the JP1 events converted from log data must first be registered in the event service of the physical host. After that, configure a forwarding settings file (forward) so that the JP1 events are forwarded to the event service on the logical host. For details on the forwarding settings file, see Forwarding settings file in 14. Definition Files.
An example of a system configuration for monitoring, on a logical host, log files on local disks is shown in the following figure.
Figure 3-3 Configuration example for monitoring, on a logical host, log files on local disks
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