# Engines

The child servers that you want to use to index documents with this date range. This parameter applies only when you set DistributeByDate to `True`.

You specify the range of dates by using FromDate and UpToDate, or FromRelative and UpToRelative.

Set `Engines` to the configuration section numbers for the child servers that you want to use for this date range (the value of `N` in the corresponding `[DIHEngineN]` or `[IDOLServerN]` section). Separate multiple child server numbers with commas.

DIH sends the documents that have a date in the specified range to all the child servers that you specify in `Engines`.

NOTE: The `[DateRangeN]` section does not correspond to an individual child server configuration section (that is, `[DateRange0]` does not necessarily relate to `[DIHEngine0]`.

Type: | Integer
Default: |
Required: | Yes
Configuration Section: | DateRange`N`
Example: | `Engines=1,3`
See Also: | FromDate FromRelative UpToDate UpToRelative

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