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# EngineManagement

Allows you to dynamically edit the status of child servers (without restarting the Distributed Index Handler).

DIH updates the configuration file when you add, update, or remove a child server.

You must specify the action to perform by setting EngineAction. Depending on the value of EngineAction, you might need to set additional parameters:

- When you set EngineAction to `Edit`, you must also set ID.
- When you set EngineAction to `Remove`, you must set one of ID or Group.
- When you set EngineAction to `Add`,. you must also set Host and Port.

## Examples

    http://localhost:9070/action=EngineManagement&EngineAction=Edit&Id=1&Disabled=true

This action turns off the child server with ID `1`.

## Required Parameters

The following action parameters are required.

Parameter | Description
--- | ---
EngineAction | The action to take on the specified servers.

Depending on the value of EngineAction, you might need to set one or more of the following parameters.

Parameter | Description
--- | ---
Group | The group ID of the mirror group to perform the specified action on.
Host | The host of the new child server. This parameter is valid only when you set EngineAction to `Add`.
ID | The servers to perform the specified action on.
Port | The port of the new child server. This parameter is valid only when you set EngineAction to `Add`.

## Optional Parameters

This action accepts the following optional parameters.

Parameter | Description
--- | ---
Disabled | Marks the specified child server as online or offline.
GSSServiceName | The GSSAPI service name of the new child server.
Polling | Change whether DIH polls jobs for this child server.
Port | The SSL configuration to use for the service port of the new child server.
SSLConfig | The SSL configuration to use for the ACI port of the new child server.
UpdateOnly | Change the status of a server to UpdateOnly.
Weight | Change the weight of a child server.

This action accepts the following standard ACI action parameters.

Parameter | Description
--- | ---
ActionID | A string to use to identify an ACI action.
EncryptResponse | Encrypt the output.
FileName | The file to write output to.
ForceTemplateRefresh | Forces the server to load the template from disk.
Output | Writes output to a file.
ResponseFormat | The format of the action output.
Template | The template to use for the action output.
TemplateParamCSVs | A list of variables to use for the specified template.

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