"Unexpected error while upgrading upgrade unit: [MPP] Node upgrade failed : null" during NSX-T Upgrade

Products

• VMware NSX

Issue/Introduction

• During the NSX upgrade, the NSX Manager Node gives you a warning indicating a NSX Manager node failed:
  Error message: Unexpected error while upgrading upgrade unit: [MPP] Node upgrade failed : null
• If you log into the NSX manager appliance as the root and check the disk usage using df -h we see the root partition usage is at 100%.
  #df -h
Filesystem                   Size  Used Avail Use% Mounted on
tmpfs                        2.4G  1.4M  2.4G   1% /run
/dev/sda2                     11G  11G    0     100% /
tmpfs                         12G  176K   12G   1% /dev/shm
tmpfs                        5.0M     0  5.0M   0% /run/lock
/dev/sda1                    942M  7.1M  870M   1% /boot
/dev/sda3                     11G   24K  9.7G   1% /os_bak
/dev/mapper/nsx-config__bak   29G   24K   28G   1% /config_bak
/dev/mapper/nsx-tmp          3.7G  3.3M  3.5G   1% /tmp
/dev/mapper/nsx-var+dump     9.3G   24K  8.8G   1% /var/dump
/dev/mapper/nsx-repository    31G  9.1G   21G  32% /repository
/dev/mapper/nsx-image         42G  5.0M   40G   1% /image
/dev/mapper/nsx-config        29G   30M   28G   1% /config
/dev/mapper/nsx-var+log       27G  653M   25G   3% /var/log
/dev/mapper/nsx-secondary     98G  218M   93G   1% /nonconfig
  
  

Environment

VMware NSX-T Data Center

Cause

The issue is caused by a lack of space in the root (/) partition of the NSX Manager node, which prevents the NSX Manager node from being updated.

Resolution

 

Please refer to this Broadcom Knowledge Base article to clean up the affected partition on the NSX Manager node.