Increment Advisor will not adjust thread count (Doc ID 1643940.1)

Last updated on NOVEMBER 05, 2016

Applies to:

Oracle WebLogic Server - Version 10.3.6 and later
Information in this document applies to any platform.
Fixed version : 12.1.3

Symptoms

The Increment Advisor, which decides when to increase and decrease thread in self-tuning thread pool, sometimes behaves erroneously.

In some cases, you would see underutilized thread pool and the self-tuning thread pool does not have sufficient threads which could manage the workload at that point of time

In order to confirm this, browse to AdminConsole => <servername> => "Monitoring" TAB  and "Threads" SubTab and you could see most of the threads in STANDBY state and still number of pending requests exists.

For Example:

Note : The above messages are <DEBUG> messages and will only point out to "Suspicious conditions being hit".

This is to further confirm the faulty behaviour "Increment Advisor"

For more information about "WorkManager" debugging, please read below KM

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How To Debug Work Manager in weblogic 10.3.x (Doc ID 1902469.1)

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Cause

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