Azure Worker Role reboots when adding instance of Web Role

Question

I have a Windows Azure cloud service with a Web Role and a Worker Role. I I have built a website that allows me to perform various management functions against the cloud service (stop/start, reboot instance, add instance, remove instance). All functions are
performed via the web api. My issue is that when I add an instance of the web role, the worker role reboots. Note that this doesn't happen if I add an instance via the Azure portal. The code functions correctly in all other aspects. Any idea how to do this
so that only the role being affected recycles instead of all roles recycling?
My code:
 public void AddInstance()
        XDocument configDoc = this.GetDeploymentConfiguration();
        var ns = configDoc.Root.GetDefaultNamespace();
        configDoc.Root
            .Elements( ns + "Role" )
            .FirstOrDefault( r => r.Attribute( "name" ).Value.ToLower() == this.RoleName.ToLower() )
            .Element( ns + "Instances" )
            .Attribute( "count" )
            .Value = ( int.Parse( configDoc.Root
                           .Elements( ns + "Role" )
                           .FirstOrDefault( r => r.Attribute( "name" ).Value.ToLower() == this.RoleName.ToLower() )
                           .Element( ns + "Instances" )
                           .Attribute( "count" )
                           .Value ) + 1 ).ToString();
        string encodedString = Convert.ToBase64String( Encoding.UTF8.GetBytes( configDoc.ToString() ) );
        this.SetDeploymentConfig( encodedString );
    public XDocument GetDeploymentConfiguration()
        string uri = string.Format( this.servicePropertiesOperationFormat, this.subscriptionID, this.serviceName, "production", "" );
        ServiceManagementOperation operation = new ServiceManagementOperation( this.thumbprint, this.versionID );
        var xdoc= operation.Invoke( uri );
        var myelm = xdoc.Element( wa + "Deployment" ).Element( wa + "Configuration" );
        var mystring=  Encoding.UTF8.GetString( Convert.FromBase64String( myelm.Value ) );
        return XDocument.Parse( mystring );
    public string SetDeploymentConfig( string configurationFile )
        string uri = string.Format( this.servicePropertiesOperationFormat, this.subscriptionID, this.serviceName, "production", "/?comp=config" );
        ServiceManagementOperation operation = new ServiceManagementOperation( this.thumbprint, this.versionID );
        string payloadString = string.Format(
            @"<?xml version=""1.0"" encoding=""utf-8""?>
            <ChangeConfiguration xmlns=""http://schemas.microsoft.com/windowsazure"">
                    <Configuration>{0}</Configuration>
            </ChangeConfiguration>", configurationFile );
        XDocument payload = XDocument.Parse( payloadString );
        return operation.Invoke( uri, payload );

Answer 1

Hi,
From my experience, if you add one role instance, the whole cloud service will run in translating state, and this cloud service will stop to working, so maybe this is a future request.
Best Regards,
Jambor
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