Exporting logs take a long time to complete on a vCenter Server with multiple vSAN clusters.

Products

• VMware vCenter Server 8.0

Issue/Introduction

Exporting vCenter Server logs take a long time to complete when vCenter Server has multiple vSAN clusters.

The following events are listed in the action.log file within the captured support bundle:

YYYY-MM-DD HH:MM:SS.005867: run IGNORE_ERROR,IGNORE_MISSING,TIMEOUT python /usr/lib/vmware-vpx/vsan-health/vsan-vc-health-status.py cluster-health (/etc/vmware/vm-support/vsan-health.mfx) took 107.000 sec
YYYY-MM-DD HH:MM:SS506866: run IGNORE_ERROR,IGNORE_MISSING,TIMEOUT python /usr/lib/vmware-vpx/vsan-health/vsan-vc-health-status.py other-type-objects (/etc/vmware/vm-support/vsan-health.mfx) took 27.000 sec

Environment

vCenter Server 8.0

Cause

The vsan-vc-health-status.py script takes a long time to complete.

When vCenter Server has multiple vSAN clusters, the script can take longer to query health information and this behaviour is expected.

The collected information is included in the vCenter Server bundle by default.

Resolution

To work around the slow log collection, temporarily skip collecting vsan-health information. 

1. Create a backup of the file: /etc/vmware/vm-support/vsan-health.mfx


   cp -v /etc/vmware/vm-support/vsan-health.mfx /etc/vmware/vm-support/vsan-health.mfx.bak

    

2. Edit and comment the following lines in /etc/vmware/vm-support/vsan-health.mfx
   

   # run  IGNORE_ERROR,IGNORE_MISSING,TIMEOUT=600     $VMWARE_PYTHON_HOME/python $VMWARE_CIS_HOME/vsan-health/vsan-vc-health-status.py rvc-basic-support-information
   # run  IGNORE_ERROR,IGNORE_MISSING,TIMEOUT=600     $VMWARE_PYTHON_HOME/python $VMWARE_CIS_HOME/vsan-health/vsan-vc-health-status.py cluster-health
   # run  IGNORE_ERROR,IGNORE_MISSING,TIMEOUT=600     $VMWARE_PYTHON_HOME/python $VMWARE_CIS_HOME/vsan-health/vsan-vc-health-status.py other-type-objects

    

3. Generate a support bundle. See, Collecting diagnostic information for VMware vCenter Server 7.x and 8.x
    
4. Restore the original file.
   

   $ mv /etc/vmware/vm-support/vsan-health.mfx /etc/vmware/vm-support/vsan-health.mfx.edit
   
   $ cp -v /etc/vmware/vm-support/vsan-health.mfx.bak /etc/vmware/vm-support/vsan-health.mfx