-
Problem report
-
Resolution: Fixed
-
Major
-
5.0.9, 5.2.5
-
None
-
Windows
-
Sprint 73 (Feb 2021), Sprint 74 (Mar 2021), Sprint 75 (Apr 2021), Sprint 76 (May 2021)
-
1
In the case the Zabbix 2 Agent receives Windows service management signals other than svc.Stop and svc.Shutdown this is poorly handled by logging ambiguous "unsupported windows service command recieved" message (https://git.zabbix.com/projects/ZBX/repos/zabbix/browse/src/go/cmd/zabbix_agent2/service_windows.go?until=ce3e8eb5eae1bf209cd3ca23795a69a15f48f68f&untilPath=src%2Fgo%2Fcmd%2Fzabbix_agent2%2Fservice_windows.go#461).
This can be reproduced from the PowerShell for example by issuing commands like:
Windows PowerShell Copyright (C) 2016 Microsoft Corporation. All rights reserved. PS C:\Users\Administrator> Suspend-Service -DisplayName "Zabbix Agent 2" Suspend-Service : Service 'Zabbix Agent 2 (Zabbix Agent 2)' cannot be suspended because the service does not support be ing suspended or resumed. At line:1 char:1 + Suspend-Service -DisplayName "Zabbix Agent 2" + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + CategoryInfo : CloseError: (System.ServiceProcess.ServiceController:ServiceController) [Suspend-Service ], ServiceCommandException + FullyQualifiedErrorId : CouldNotSuspendServiceNotSupported,Microsoft.PowerShell.Commands.SuspendServiceCommand Suspend-Service : Service 'Zabbix Agent 2 (Zabbix Agent 2)' cannot be suspended due to the following error: Cannot paus e Zabbix Agent 2 service on computer '.'. At line:1 char:1 + Suspend-Service -DisplayName "Zabbix Agent 2" + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + CategoryInfo : CloseError: (System.ServiceProcess.ServiceController:ServiceController) [Suspend-Service ], ServiceCommandException + FullyQualifiedErrorId : CouldNotSuspendService,Microsoft.PowerShell.Commands.SuspendServiceCommand
or
PS C:\Users\Administrator> Start-Service -DisplayName "Zabbix Agent 2" PS C:\Users\Administrator> Resume-Service -DisplayName "Zabbix Agent 2" Resume-Service : Service 'Zabbix Agent 2 (Zabbix Agent 2)' cannot be resumed because the service does not support being suspended or resumed. At line:1 char:1 + Resume-Service -DisplayName "Zabbix Agent 2" + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + CategoryInfo : CloseError: (System.ServiceProcess.ServiceController:ServiceController) [Resume-Service], ServiceCommandException + FullyQualifiedErrorId : CouldNotResumeServiceNotSupported,Microsoft.PowerShell.Commands.ResumeServiceCommand Resume-Service : Service 'Zabbix Agent 2 (Zabbix Agent 2)' cannot be resumed due to the following error: Cannot resume Zabbix Agent 2 service on computer '.'. At line:1 char:1 + Resume-Service -DisplayName "Zabbix Agent 2" + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + CategoryInfo : CloseError: (System.ServiceProcess.ServiceController:ServiceController) [Resume-Service], ServiceCommandException + FullyQualifiedErrorId : CouldNotResumeService,Microsoft.PowerShell.Commands.ResumeServiceCommand
This is accordingly seen in the agent log:
2021/02/26 14:31:18.413739 unsupported windows service command
Below is the link to some example Go code demonstrating how to handle the commands (they may vary, e. g., svc.Interrogate, svc.Pause, svc.Continue):
https://github.com/golang/sys/blob/a50acf3fe073/windows/svc/example/service.go#L30
AFAICS, all versions starting from the implementation of Windows services support are affected.
