Last Modified: Apr 28, 2025
Affected Product(s):
BIG-IP APM
Known Affected Versions:
12.1.1, 12.1.1 HF1, 12.1.1 HF2, 12.1.2, 12.1.2 HF1, 12.1.2 HF2, 12.1.3, 12.1.3.1, 12.1.3.2, 12.1.3.3
Fixed In:
13.1.0, 12.1.3.4
Opened: Jun 15, 2017 Severity: 3-Major
When a connection handle (fd) between apmd and memcachd gets bad (someone else is using or already closed by memcachd), all worker threads gets locked out. A cleaner thread then restart APMD with an assert.
APMD gets locked down , eventually restart with a core.
This is difficult to reproduce. It happens if one or more connection handle between apmd worker thread and memcachd gets misused.
None.
Communication between APMD and TMM has been improved to be more tolerant of error conditions.