All Update Manager Tasks are failing with Unknown Error. Check the Events and logs for details

Products

• VMware vSphere ESXi

Issue/Introduction

Running tasks in Update Manager such as Check Compliance, Stage, and Remediate are failing with Unknown Error immediately in vCenter

Environment

vCenter 8.0

Cause

Review the logging for Update Manager it can be seen that the metadata is missing for the Updates that it is trying to perform against the host:

/var/log/vmware/vmware-updatemgr/vum-server/vum-server-##.log:

YYYY-MM-DDTSS:SS:SS.#### info vmware-vum-server[09790] [Originator@6876 sub=VciScanTask.ScanTask{74}] [vciTaskBase 1496] SerializeToVimFault fault:
--> (integrity.fault.VcIntegrityFault) {
-->    faultCause = (vmodl.MethodFault) null,
-->    faultMessage = <unset>
-->    msg = "boost::filesystem::file_size: No such file or directory [system:2]: "/storage/updatemgr/patch-store/hostupdate/vmw/metadata-###.zip""
--> }
--> Converted fault:
--> (vim.fault.ExtendedFault) {
-->    faultCause = (vmodl.MethodFault) null,
-->    faultMessage = <unset>,
-->    faultTypeId = "com.vmware.vcIntegrity.VcIntegrityFault",
-->    data = (vim.KeyValue) [
-->       (vim.KeyValue) {
-->          key = "faultCause",
-->          value = ""
-->       },
-->       (vim.KeyValue) {
-->          key = "faultMessage",
-->          value = ""
-->       }
-->    ]
-->    msg = "boost::filesystem::file_size: No such file or directory [system:2]: "/storage/updatemgr/patch-store/hostupdate/vmw/metadata-##.zip""
--> }

Resolution

Perform Update Manager DB reset as outlined here - Resetting the Update Manager Database

Allow vCenter to resync or force a resync from within the Actions options under the Lifecycle Manager section.