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Support Article

Some alerts are not written to the alert log file

SA-18079

Summary



Some alerts are not written to the alert log file even though the alert buffer is set to maximum size.


Error Messages



Not Applicable


Steps to Reproduce



Put Pega under heavy load, then review alert log file.


Root Cause



Working as intended.  The alert logger will drop alerts if the buffer is full to prevent possible performance issues.

Resolution



If the system must have all alerts written, even at the cost of slowdown, perform the following local-change:

Set parameter "blocking" in prlogging.xml to "true". 
This can cause processing to pause while AES sends alerts, so ensure to set it back to false after running the test. This setting should ensure that, if the buffer is full, AES will wait instead of dropping messages. With that setting on false, AES will drop messages if the buffer is full.
Suggest Edit

Published January 31, 2016 - Updated October 8, 2020

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