Symptoms

-- CPU usage is higher than normal. -- Top command shows learning_manager.pl used more than 50% CPU from time to time.

Impact

The setting might have a significant effect on application performance.

Conditions

Configure selective cookie 'Explicit Entities Learning'.

Workaround

You can lower CPI usage by changing 'Explicit Entities Learning' cookies from 'Selective' to 'Never'.

Fix Information

This release reduces the learning manager's resource usage when it processes traffic with cookies and headers, in case there are no learning suggestions for cookies or headers.

Behavior Change