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Don Burleson Blog 







Monitor Oracle alert log Tips

Oracle Database Tips by Donald BurlesonNovember 28, 2015

Question:  I understand that I need to develop a script to monitor my Oracle alert logs and send out alerts where unexpected errors occur,  What are the recommended ways of monitoring the Oracle alert log?

Answer: Its important to monitor the Oracle alert log and send alerts when serious errors are logged into the alert log. 

It can take weeks to write a comprehensive set of intelligent scripts to scan the alert logs for important massages.  If you don't want to write your own Oracle monitoring scripts, see my Oracle script download.

Many people monitor the alert log with UNIX/Linux shell scripts.  When monitoring the alert log, it is critical to filter-out warnings and only monitor for unexpected errors.  Hence, your monitoring script should contain a "white list" of errors to bypass and monitor for any messages (those beginning with ORA-") that are not on the white list.

Most Oracle alert log monitors will search for errors every file monitors, only searching the last 100 lines of the existing alert log.

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