Bug ID 1041317: MCPD delay in processing a query_all message if the update_status bit is set

Last Modified: Jan 10, 2023

Bug Tracker

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

Known Affected Versions:
15.1.0, 15.1.0.1, 15.1.0.2, 15.1.0.3, 15.1.0.4, 15.1.0.5, 15.1.1, 15.1.2, 15.1.2.1, 15.1.3, 15.1.3.1, 15.1.4, 15.1.4.1, 15.1.5, 15.1.5.1, 15.1.6, 15.1.6.1, 15.1.7, 15.1.8, 15.1.8.1

Opened: Aug 17, 2021
Severity: 3-Major

Symptoms

When there are a significant number of virtual servers or pools, mcpd can take a several seconds to respond to query_all messages, if the update_status is set to 1 in the message.

Impact

While mcpd is busy updating the status for each virtual server or pool, mcpd will not able to to respond to any messages. Control plane operations might timeout.

Conditions

Update_status is set to 1 in the message. This could occur, for example, with the following snmp command snmpget -v2c -c public localhost ltmVsStatusNumber.0

Workaround

None

Fix Information

None

Behavior Change