Bug ID 890401: Restore correct handling of small object when conditions to change cache type is satisfied

Last Modified: May 27, 2020

Bug Tracker

Affected Product:  See more info
BIG-IP AAM(all modules)

Known Affected Versions:
15.1.0.2, 15.1.0.1, 15.1.0, 15.0.1, 15.0.0, 14.1.2, 14.1.0, 14.0.1, 14.0.0, 13.1.3, 13.1.1, 13.1.0, 13.0.1, 13.0.0, 12.1.5, 12.1.4, 12.1.3, 12.1.2, 12.1.1, 12.0.0, 11.6.5, 11.6.4, 11.6.3, 11.6.2, 11.6.1

Opened: Mar 16, 2020
Severity: 3-Major

Symptoms

BIG-IP system software allows you to cache HTTP responses with WAM/AMM web applications. There is a special storage location for small-size objects. If a caching object is about to exceed a threshold limit, the BIG-IP system might change its caching storage to MetaStor. A fix for ID 792045 introduced an issue for instances in which it does not, which resulted in not serving a cached object.

Impact

The BIG-IP system resets a connection with an error, a cached object is not served, and the rendering of a client's webpage is not correct.

Conditions

-- WAM/AAM is provisioned. -- Virtual server has a webacceleration profile with a web application. -- The BIG-IP software contains a fix for ID 792045.

Workaround

None.

Fix Information

None

Behavior Change