NSX Manager memory usage is gradually increasing resulting in slower API responses.

Products

• VMware NSX Networking

Issue/Introduction

Symptoms:

• API responses are slowing down.
• Running NSX version 3.2.2 or lower
• Proxy service has a high resident memory. This can be checked with the instructions below.
  • Find the 'uproxy' 'Main PID' value: systemctl status proxy
  • Check process details with 'top': top -p <Main PID>
  • Exceeding 1G of resident memory is considered a problem.
  • RES value shows the resident memory in Kbytes - Exceeding 1G of resident memory is considered a problem.

Environment

VMware NSX-T Data Center

Cause

There is a slow memory leak in the auth server (/etc/init.d/proxy) for local user authentication. Over time this leads to the auth server accumulating resident memory. Exceeding 1G of resident memory is considered a problem.

Resolution

This is resolved in NSX 3.2.3 available at VMware Downloads.  

Workaround:

Restart the auth server (/etc/init.d/proxy) with the NSX CLI command: restart service http