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Oracle in a Nutshell
book

Oracle in a Nutshell

by Rick Greenwald, David C. Kreines
December 2002
Intermediate to advanced content levelIntermediate to advanced
928 pages
85h 29m
English
O'Reilly Media, Inc.
Content preview from Oracle in a Nutshell

Events

An event occurs as the result of an event test run by Enterprise Manager. Enterprise Manager comes with a number of predefined events, which can monitor conditions for the databases, the listeners, the HTTP servers, the Connection Manager, and each specific node.

The base Enterprise Manager product comes with a simple set of UpDown events, used to check to see if a database, listener, or node is available. You can add additional events with some of the expansion packs detailed in the later Section 16.5 section. You can also add your own unsolicited events; these are events that take place outside the scope of the Enterprise Manager system and specifically notify Enterprise Manager of their occurrence.

You can create your own events, which are then implemented by the Oracle Management Server. When you define an event, you define event tests and schedules for the event, as well as parameters and security settings for the event, which limit how administrators can access and modify it. If you create an event that detects some kind of failure, you can assign a “fixit” script that will run automatically and try to correct the failure.

When an event occurs, it modifies the status of the event. The four possible levels of status for an event are:

  • Unknown, which means that the event test could not be run

  • Critical

  • Warning

  • Error, which indicates that the event test did not successfully complete

When you define an event, you also specify what values returned from the event will result in the ...

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Publisher Resources

ISBN: 0596003366Errata Page