vCenter /var/log/vmware/ Partition Out of Space and SAML Session Logout Error sso error

Products

• VMware vCenter Server 8.0
• VMware vCenter Server

Issue/Introduction

vCenter Server /var/log/vmware/ partition experiences disk space exhaustion when generating log bundles. Furthermore, an expected error occurs when a user attempts to log out of an active SAML session due to  disk space exhaustion.

Environment

vCenter Server 8

Cause

The disk space exhaustion is caused by an undersized log disk (Disk 5 at 35 GB) compounded by a retained 19 GB vpxd core dump, while the SAML logout error is a correct systemic response due to the vsphere-gui service restart purging the in-memory session data.

Resolution

• Remove the old core dump file to reclaim disk space: rm /var/core/core.vpxd-worker.####

• Backup the vCenter

• Increase the vCenter log disk (Disk 5) capacity from the legacy 35 GB to the current 50 GB standard.

• Execute the autogrow script for vCenter to recognize the expanded space in /var/log/: /usr/lib/applmgmt/support/scripts/autogrow.sh