Windows Application Event Log reports "Delete of backup failed" at 3:59 AM on Sunday
Applies to
SnapCenter Server 4.3.1
Issue
- Windows Application Event Log reports an error like below at 3:59 AM on Sunday.
Delete of backup failed with error message: Object reference not set to an instance of an object.
- There are no failed jobs in the Job Monitor of SnapCenter GUI.
SnapManagerWeb.logreports errors like below.
Example:
2020-10-25T03:59:03.5817821+09:00 DEBUG SnapManagerWeb PID=[2868] TID=[234] Enter DeleteBackup
2020-10-25T03:59:03.5974049+09:00 ERROR SnapManagerWeb PID=[2868] TID=[234] ErrorCode (136), ErrorMessage (The user you are trying does not have permission to access the system. Please re-authenticate to continue or contact your administrator.)
2020-10-25T03:59:03.6130298+09:00 INFO SnapManagerWeb PID=[2868] TID=[234] Operation DeleteBackup started at 10/25/2020 03:59:03
2020-10-25T03:59:03.6286543+09:00 DEBUG SnapManagerWeb PID=[2868] TID=[234] BackupBiz - DeleteBackup Start
2020-10-25T03:59:03.6286543+09:00 DEBUG SnapManagerWeb PID=[2868] TID=[234] IsOperationAuthorized - Enter
2020-10-25T03:59:03.6442800+09:00 DEBUG SnapManagerWeb PID=[2868] TID=[234] IsScheduledJob : false
2020-10-25T03:59:03.6442800+09:00 ERROR SnapManagerWeb PID=[2868] TID=[234] ErrorCode (136), ErrorMessage (The user you are trying does not have permission to access the system. Please re-authenticate to continue or contact your administrator.)
2020-10-25T03:59:03.6599049+09:00 DEBUG SnapManagerWeb PID=[2868] TID=[234] GetUserOperationContext enter
2020-10-25T03:59:03.6599049+09:00 INFO SnapManagerWeb PID=[2868] TID=[234] Start - GetHostName
2020-10-25T03:59:03.6755302+09:00 INFO SnapManagerWeb PID=[2868] TID=[234] Account details: bypassdomain True
2020-10-25T03:59:03.6755302+09:00 DEBUG SnapManagerWeb PID=[2868] TID=[234] Resolving host name =
2020-10-25T03:59:03.6755302+09:00 ERROR SnapManagerWeb PID=[2868] TID=[234] Object reference not set to an instance of an object.
2020-10-25T03:59:03.6929320+09:00 ERROR SnapManagerWeb PID=[2868] TID=[234] ErrorCode (129), ErrorMessage (Failed to find host (). Verify if the host is up and running and check the DNS and firewall settings. Object reference not set to an instance of an object..)