# Record Statistics from Multiple IDOL Servers

If you are working with multiple Query Manipulation Servers, you might want to collect statistics from some or all of them.

To configure Statistics Server for multiple Query Manipulation Servers

1. Create an `[IDOLStatistics]` section in the Statistics Server configuration file.
2. In the `[IDOLStatistics]` section, set the `Number` and `EventField` parameters. The `Number` parameter specifies the number of servers to collect statistics from. The `EventField` parameter specifies the name of the field, in the event XML, that identifies the source of the event.
3. In the `[Statistics]` section, set the `IDOLName` parameter for each statistic.
4. Save the configuration file.

For example:

    [IDOLStatistics]
    Number=2
    EventField=idolname

    [Statistics]
    0=querycount1
    1=querycount2

    [querycount1]
    IDOLName=IDOL1
    Field=spellingquery
    Operation=count
    Period=3600

    [querycount2]
    IDOLName=IDOL2
    Field=spellingquery
    Operation=count
    Period=3600

In this example, Statistics Server collects information from two Query Manipulation Servers. The XML events must have an `<idolname>` field that identifies the Query Manipulation Server. The Statistics Server measures two nearly identical statistics, but `querycount1` records only requests sent to the IDOL1 server, and `querycount2` records only requests sent to the IDOL2 server.

Related Topics

- Push Events to Statistics Server

- Configuration Parameter Reference

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