SDDC Manager UI, on login, is redirecting to URL https://sddc_fqdn/ui/api/internal/login/callback and showing 500 Internal Server Error

Products

• VMware SDDC Manager

Issue/Introduction

The SDDC Manager UI is intermittently accessible.

• When it is accessible -
  • No workload information is populated in the UI elements.
• When it is not accessible - 
  • When attempting to login to it you are redirected to URL https://sddc_fqdn/ui/api/internal/login/callback
  • An error - "500 Internal Server Error" is displayed.

 

Environment

VCF 5.2.x

Cause

This behaviour can be the result of the root file system logical volume /dev/mapper/vg_system-lv_root on the SDDC Manager being 100% full

 

Resolution

Having SSH'd onto the SDDC Manager as vcf, su root - and identifying using the command df -h that the root file system logical volume /dev/mapper/vg_system-lv_root is full - the next steps are to address this -

• Remove unnecessary files from the volume in question - typically old log files, old backups or old support bundles
• Identify what is causing the files to be generated and remediate it (for example: a misconfigured NSX backup schedule)
• Execute /opt/vmware/vcf/operationsmanager/scripts/cli/sddcmanager_restart_services.sh to restart SDDC services

The SDDC Manager UI is expected to be accessible again.