Bug ID 599177: Regression in Route Domain and Partition GUI load times due to high CPU utilization in merged.

Last Modified: Sep 13, 2023

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

Known Affected Versions:
12.1.2, 12.1.3, 12.1.3.1, 12.1.3.2, 12.1.3.3, 12.1.3.4, 12.1.3.5, 12.1.3.6, 12.1.3.7, 12.1.4, 12.1.4.1, 12.1.5, 12.1.5.1, 12.1.5.2, 12.1.5.3, 12.1.6, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3

Fixed In:
13.1.0, 13.0.1

Opened: Jun 14, 2016

Severity: 3-Major

Symptoms

With large configuration load, the time it takes to load the configuration might take minutes.

Impact

Long loading times. Merged uses a lot of CPU cycles. Using the tmctl command 'tmctl -f /var/tmstat/istats' shows .icomplete and .irequest tables have a large number of rows in them, resulting in merged spending a lot of time merging these rows.

Conditions

Loading Route Domain and Partition pages in the TMUI.

Workaround

Restart mcpd using the following command: bigstart restart mcpd. Warning! Restarting mcpd causes the system to reinitialize all processes, which affects traffic. This workaround should be used with caution.

Fix Information

mcpd and merged now provide improved handling of loading large pages so performance issues when loading Route Domain and Partition pages in the TMUI no longer occur.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips