NSX upgrade precheck fails due to OOM error and Upgrade Coordinator service crash

Products

• VMware NSX

Issue/Introduction

• While  upgrading to NSX 4.2.x. An error message shows while running precheck "upstream connect error or disconnect/reset before headers. reset reason connection failure, transport failure reason: delayed connect error:111"
  
  
  
  
• There is no "JVMOutOfMemory" reported in /var/log/upgrade-coordinator/upgrade-coordinator-tomcat-wrapper.log .
• No crash dump generated for OOM error under /image/cores
• In the Top.mem.log it was observed that Uproton was taking 21.9%
  
  

Environment

VMware NSX

Resolution

Perform a rolling reboot of the NSX manager's to release memory.

Note: To investigate the possible cause of the issue, please gather the NSX Manager Support Bundle and open a SR with NSX as product -Creating and managing Broadcom support cases

 

Additional Information

Please also refer NSX upgrade precheck fails due to OOM error and Upgrade Coordinator service crash for same error.