Bug ID 524756: APM Log is filled with errors about failing to add/delete session entry

Last Modified: May 14, 2019

Bug Tracker

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

Known Affected Versions:
11.4.1, 11.5.1, 11.5.1 HF1, 11.5.1 HF10, 11.5.1 HF11, 11.5.1 HF2, 11.5.1 HF3, 11.5.1 HF4, 11.5.1 HF5, 11.5.1 HF6, 11.5.1 HF7, 11.5.1 HF8, 11.5.1 HF9, 11.5.2, 11.5.2 HF1, 11.5.3, 11.5.3 HF1, 11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5

Fixed In:
11.6.0 HF6, 11.5.3 HF2, 11.4.1 HF10

Opened: May 22, 2015
Severity: 4-Minor

Symptoms

APM log is filled with the following error when the issue occurs: May 21 16:34:16 BIG-IP4013mgmt err tmm2[20158]: 01490558:3: 00000000: Access stats encountered error: Failed to add/delete session entry (ERR_NOT_FOUND)

Impact

There is no functional impact. However, APM log may become useless if the volume of the error is big.

Conditions

If a session times out before it completes policy evaluation, APM will still attempt to delete its marker from the established session namespace and, hence, results in ERR_NOT_FOUND error

Workaround

None

Fix Information

Access Filter now skips session marker deletion if the timed-out session is not in established state.

Behavior Change