Bug ID 672250: SessionDB update from ApmD with large volume fails

Last Modified: Oct 16, 2023

Affected Product(s):
BIG-IP APM(all modules)

Known Affected Versions:
13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1

Fixed In:

Opened: Jul 03, 2017

Severity: 3-Major


While writing large amounts of data to sessionDB using memcache API, the write operation fails with partial write.


All worker threads performing authentication eventually get locked down. Session watchdog thread eventually makes a forced abort to recover from the situation. ApmD restarts in this situation.


Large volumes data writing to SessionDB via memcache API.


Control write to sessionDB with a smaller data size.

Fix Information

Partial write failure has been fixed, by writing remaining part(s) of query results in several iteration(s), until entire result is written.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips