Bug ID 492809: Small but continuous mcpd memory leak associated with statistics.

Last Modified: Jan 27, 2023

Bug Tracker

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

Known Affected Versions:
11.5.1, 11.5.1, 11.4.1, 11.4.1

Fixed In:
12.0.0, 11.6.0 HF4, 11.5.2, 11.5.1 HF8, 11.4.1 HF8

Opened: Nov 24, 2014
Severity: 3-Major
Related Article:


A small amount of memory is allocated and not released each time the statsd process gathers the global access statistic information. Symptoms include a small but constant rise in memory usage associated with statistics. Note: Although the memory leak occurs in association with APM statistics specifically, APM does not need to be provisioned for the leak to occur.


Over a long period of time, mcpd runs out of memory. The system periodically posts messages similar to the following in /shared/tmp/mcpd.out: mcpd: BUG: tmstat_dealloc invoked on a handle with rows outstanding; release all rows before calling tmstat_dealloc.


This occurs during normal operation.



Fix Information

An issue has been fixed that resulted in a small, periodic mcpd memory leak associated with statistics.

Behavior Change