Last Modified: Jan 07, 2026
Affected Product(s):
BIG-IP APM
Fixed In:
11.5.1
Opened: Jan 15, 2014 Severity: 3-Major Related Article:
K15181
An iRule that attempts to get session data in the ACCESS_SESSION_CLOSED event will always see empty values.
An iRule that depends on being able to manipulate session data during the ACCESSS_SESSION_CLOSED event will fail to find the data.
This issue was a side-effect of a fix to a different issue. This problem will occur for all iRules that attempt to get session data in the ACCESS_SESSION_CLOSED event.
There is no workaround available.
Session variables have been made available during the ACCESS_SESSION_CLOSED event. As a side effect, session variables are still available even after issuing the "ACCESS::session remove" command, because the actual removal is deferred until after the current iRule completes. However, it is considered an error to access that data outside of the ACCESS_SESSION_CLOSED event.