Description
What happened?
I can't add a vm to an agent pool. This was working fine yesterday with no changes to this since then.
[2025-04-11 18:48:13Z ERR Agent] Microsoft.TeamFoundation.DistributedTask.WebApi.TaskAgentExistsException: Pool environment-xxxxxx already contains an agent with name xxxxxx.
at Microsoft.VisualStudio.Services.WebApi.VssHttpClientBase.HandleResponseAsync(HttpResponseMessage response, CancellationToken cancellationToken)
at Microsoft.VisualStudio.Services.WebApi.VssHttpClientBase.SendAsync(HttpRequestMessage message, HttpCompletionOption completionOption, Object userState, CancellationToken cancellationToken)
at Microsoft.VisualStudio.Services.WebApi.VssHttpClientBase.SendAsync[T](HttpRequestMessage message, Object userState, CancellationToken cancellationToken)
at Microsoft.VisualStudio.Services.WebApi.VssHttpClientBase.SendAsync[T](HttpMethod method, IEnumerable1 additionalHeaders, Guid locationId, Object routeValues, ApiResourceVersion version, HttpContent content, IEnumerable1 queryParameters, Object userState, CancellationToken cancellationToken)
at Microsoft.VisualStudio.Services.Agent.Listener.Configuration.EnvironmentVMResourceConfigProvider.AddAgentAsync(AgentSettings agentSettings, TaskAgent agent, CommandSettings command) in D:\a\1\s\src\Agent.Listener\Configuration\ConfigurationProvider.cs:line 482
at Microsoft.VisualStudio.Services.Agent.Listener.Configuration.ConfigurationManager.ConfigureAsync(CommandSettings command) in D:\a\1\s\src\Agent.Listener\Configuration\ConfigurationManager.cs:line 253
at Microsoft.VisualStudio.Services.Agent.Listener.Agent.ExecuteCommand(CommandSettings command) in D:\a\1\s\src\Agent.Listener\Agent.cs:line 103
[2025-04-11 18:48:13Z ERR Terminal] WRITE ERROR: Pool xxxxxxx already contains an agent with name xxxxxxxx.
[2025-04-11 18:48:08Z INFO CommandSettings] Configure {
"AcceptTeeEula": false,
"AddDeploymentGroupTags": false,
"AddEnvironmentVirtualMachineResourceTags": true,
"AddMachineGroupTags": false,
"AlwaysExtractTask": false,
"Agent": "xxxxxxxxx",
"CollectionName": null,
"DeploymentGroup": false,
"DeploymentGroupName": null,
"DeploymentGroupTags": null,
"DeploymentPool": false,
"DeploymentPoolName": null,
"EnableServiceSidTypeUnrestricted": false,
"EnvironmentVMResource": true,
"EnvironmentName": "xxxxxx",
"EnvironmentVMResourceTags": "tags",
"GitUseSChannel": false,
"DisableLogUploads": false,
"MachineGroup": false,
"MachineGroupName": null,
"MachineGroupTags": null,
"MonitorSocketAddress": null,
"NotificationPipeName": null,
"NotificationSocketAddress": null,
"NoRestart": false,
"OverwriteAutoLogon": false,
"Pool": null,
"ProjectName": "xxxxxxxx",
"ProxyPassword": null,
"ProxyUserName": null,
"ProxyUrl": null,
"Replace": true,
"RunAsAutoLogon": false,
"RunAsService": true,
"RunOnce": false,
"PreventServiceStart": false,
"SslCACert": null,
"SslClientCert": null,
"SslClientCertArchive": null,
"SslClientCertKey": null,
"SslClientCertPassword": null,
"SslSkipCertValidation": false,
"Url": "xxxxxxx",
"WindowsLogonAccount": "xxxxxx",
"WindowsLogonPassword": null,
"Work": "_work",
"Auth": "PAT",
"LaunchBrowser": false,
"Password": null,
"Token": "***",
"Unattended": true,
"UserName": null,
"ClientId": null,
"TenantId": null,
"ClientSecret": null,
"Help": false,
"Version": false
}
Versions
When we first run the install it is 3.227.2.
Then normally it updates itself once it starts running.
Environment type (Please select at least one enviroment where you face this issue)
- Self-Hosted
- Microsoft Hosted
- VMSS Pool
- Container
Azure DevOps Server type
dev.azure.com (formerly visualstudio.com)
Azure DevOps Server Version (if applicable)
No response
Operation system
No response
Version controll system
No response