The memory usage of agent NSX_OPSAGENT above the high threshold value of 80% - Transport Node Health

Products

• VMware NSX

Issue/Introduction

NSX Alarm:

Feature - Transport Node Health 
Event Type - Agent Memory Usage High
Entity Type - Transport Node 

The alarm reported is in regard to the memory usage of agent NSX_OPSAGENT on ESXi node xxxxxxx-xxxxx-xxxxx has reached above the high threshold value of 80%. 

(This alarm is sometimes generated even though there is no traffic)

Environment

VMware NSX 4.2.0

Cause

nsx-opsagent - Handles all stateless operations initiated from NSX manager

- There are multiple threads within the opsagent and few of them may contribute to little higher usage.

- The opsagent resource pool is sized at 1.3G, so when the opsagent usage reaches around 1.05 or above this alarm gets generated as its compared with a threshold limit of 1.3G

 

Resolution

- Resolved in NSX 4.2.1 and higher versions.

- From NSX 4.2.1 and later versions there is a patch that is applied to increase the opsagent resource pool limit (threshold limit) to 1.5G from 1.3G

- This should resolve these alarms going forward.