Bug ID 515030: [ZRD] A memory leak in Zrd

Last Modified: Sep 13, 2023

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

Known Affected Versions:
11.5.1 HF1, 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, 11.5.1 HF10, 11.5.1 HF11, 11.5.2 HF1, 11.5.3 HF1, 11.4.1, 11.6.0, 11.6.1, 11.6.2, 11.6.3, 11.6.3.1, 11.6.3.2, 11.6.3.3, 11.6.3.4, 11.6.4, 11.6.5, 11.6.5.1, 11.6.5.2, 11.6.5.3, 12.1.0 HF1, 12.1.0 HF2, 12.1.1 HF1, 12.1.1 HF2, 12.1.2 HF1, 12.1.2 HF2

Fixed In:
12.0.0, 11.6.0 HF6, 11.5.3 HF2, 11.4.1 HF9

Opened: Mar 28, 2015

Severity: 3-Major

Related Article: K74820030

Symptoms

Memory leaks for zrd when performing multiple wide IP alias updating.

Impact

Memory leak after multiple wide IP alias updates.

Conditions

When an add, modification, or deletion of a GTM Wide IP Alias is made through the GUI or tmsh there is a small memory leak in zrd. This memory leak is not significant for any one change, but it might become noticeable after hundreds or thousands of changes when viewing memory consumption through 'top' or other tools.

Workaround

Although there is no workaround, you can mitigate potential system performance impacts by restarting zrd, which clears out the memory usage. To do so, run the command: bigstart restart zrd.

Fix Information

Memory no longer leaks in zrd when performing multiple wide IP alias updating.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips