# QDSNeedRestart Method

## Overloads

| [QDSNeedRestart(Guid, out String)](https://help.qlik.com/en-US/qlikview-developer/September2026/Subsystems/QMSAPIref/Content/PIX.Services.V12.Api9.IQMS9.QDSNeedRestart.htm#PIX_Services_V12_Api9_IQMS9_QDSNeedRestart_System_Guid_System_String__) |  | Sets that the QDS needs a restart. |
| --- | --- | --- |

[](https://help.qlik.com/en-US/qlikview-developer/Subsystems/QMSAPIref/Content/PIX.Services.V12.Api9.IQMS9.QDSNeedRestart.htm) [](https://help.qlik.com/en-US/qlikview-developer/Subsystems/QMSAPIref/Content/PIX.Services.V12.Api9.IQMS9.QDSNeedRestart.htm)

## QDSNeedRestart(Guid, out String)

Sets that the QDS needs a restart.

### Declaration

```

          bool QDSNeedRestart(Guid qdsID, out string reason)
    
  
```

### Parameters

| Type | Name | Description |
| --- | --- | --- |
| System.Guid | qdsID | The QDS ID. |
| System.String | reason | The reason for the restart. |

### Returns

| Type | Description |
| --- | --- |
| System.Boolean | The service returns the boolean value True if the operation was performed successfully. |

### Remarks

The service sets the server to accept that it needs to be restarted. A string named Reason can be sent to the service as part of the call, which is useful for logging purposes.

##### security

Requires membership of local groups *QlikView Management API* and *QlikView Administrator*.

### Examples

This code example checks if the QDS is set to need a restart and then executes the restart.

The service key injection is assumed to be handled behind the scenes. For an example of how to inject the service key, see Samples.

```
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading;
using QMSAPI;

class Program
{
    static void Main(string[] args)
    {
        try
        {
            // create a QMS API client
            IQMS apiClient = new QMSClient();

            //retrieve a time limited service key
            ServiceKeyClientMessageInspector.ServiceKey = apiClient.GetTimeLimitedServiceKey();

            Guid qdsId = new Guid("67968710-6a84-446d-b759-ceb0cc9d656f"); // The originating QDS ID
            String RestartReason;
            if (apiClient.QDSNeedRestart(out RestartReason, qdsId) == true)    //QDS requires restart if DocFolder changed
            {
                Console.WriteLine("QDS will be restarted. Reason: " + RestartReason);
                apiClient.RestartQDS(qdsId);
            }
        }
        catch (Exception ex)
        {
            Console.WriteLine("An exception occurred: " + ex.Message);
        }
        // wait for user to press any key
        Console.ReadLine();
    }
}
```

### See Also

[RestartQDS](https://help.qlik.com/en-US/qlikview-developer/September2026/Subsystems/QMSAPIref/Content/PIX.Services.V12.Api9.IQMS9.RestartQDS.htm#PIX_Services_V12_Api9_IQMS9_RestartQDS_System_Guid_)(System.Guid)