Storage suddenly filling up with 1G+ files /var/log/vmware/sso/java....hprof

Products

• VMware vCenter Server

Issue/Introduction

• Alert on vcenter of Log Disk exhaustion
• /storage/log shows 80% used
• 1G+ files in /var/log/vmware/sso/java....hprof
• STS Health CHeck failed. Apr 18, 2025 1:20:00 PM  com.vmware.identity.health.StsHealthStatus main SEVERE: Caught exception while getting STS health.
• Validation FAILED - Issue Instant 2025-04-18T13:05:02.317Z outside of clock tolerance 600000.

 

Environment

vCenter 7

Cause

Clock skew observed at same time STS Health Check failed. Hprof files generated.

Resolution

• Configure vCenter Server to use a reliable NTP server
• Remove the large hprof heap dump files
• Increase memory to vmware-stsd
  • Run the following to check memory sizing:
  • vcsa# cloudvm-ram-size -l
  • Double the memory allocated to the stsd service:
  • vcsa# cloudvm-ram-size -C <DoubleOutputFromPreviousStep>
  • Restart the stsd service:
  • vcsa# service-control --restart vmware-stsd
  • Confirm that the memory allocated to the stsd service changed:
  • vcsa# cloudvm-ram-size -l | grep vmware-stsd
• Monitor the situation: Regularly check the /storage/log partition for new heap dump files and available disk space.

 

 

 

Additional Information

Resolving /storage/log Disk Space Issues Caused by Infraprofile Java Heap Dump Files in vCenter Server