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Administrating MarkLogic Server

Creating a Range Partition from Existing Forests

You can create a range partition from existing forests simply by renaming the forests so that they adhere to a range partition naming convention. For example, you have four forests, named 1-2011, 2-2011, 3-2011, and 4-2011. You can make these four forests into a range partition, named 2011, by renaming 1-2011 to 2011-1, and so on. You should also specify a common range for each renamed forest, or leave the range fields blank to identify the forests as belonging to a default range partition. Default range partitions store the documents that have partition key values that do not fit into any of the ranges set for the other range partitions.

For example, to rename the 1-2011 forest to 2011-1 and set the range to 2011-01-01 - 2012-01-01, follow these steps:

  1. Open the Forest Configuration page in the Admin Interface, as described in Creating a Forest.

  2. In the forest name field, change the name from 1-2011 to 2011-1:

    rename-forest_v10.gif

  3. In the range section of the Forest Configuration page, set the lower bound value to 2011-01-01 and the upper bound value to 2012-01-01:

    forest-set-range_v10.gif

  4. Click OK.

Note

You can also accomplish this operation using the XQuery, JavaScript, and REST APIs. For example, in XQuery using the admin:forest-rename and admin:forest-set-range-policy-range functions.

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