Unresponsive state of SUSE Linux VM with Docker workloads on vSAN ESA

Products

• VMware vSAN

Issue/Introduction

• SUSE Linux VM running Docker workload hangs.
  
  
• "fstrim" operations are run within the guest OS around this time.
  
  
• Storage logs show prompt processing of all unmap commands with no queuing.
  
  
• vSAN Cluster Health is 100% and no latency spikes or VM stun times occurr on the vSAN layer.
  
  
• Issues in the following KBs have been ruled out:
  
  Unexpected Virtual Machine resets triggered by High Availability in VSAN cluster
   
  Virtual Machines Hang or Experience Poor Performance on vSAN ESA During Large Amount of Unmap Activity

Environment

VMware vSAN ESA 8.x

Cause

This is a guest-OS level issue. 

Resolution

Engage OS vendor.