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Add or remove a host distribution rule

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Applies to: SharePoint Server 2010

In Microsoft SharePoint Server 2010 Search, host distribution rules are used to associate a host with a specific crawl database. By default, hosts are load balanced across crawl databases based on space availability. However, you may want to assign a host to a specific crawl database for availability and performance optimization. For more information about crawl databases, see Add or remove a crawl database.

To add a host distribution rule

  1. In Central Administration, in the Application Management section, click Manage service applications.

  2. On the Service Applications page, click the name of the Search Service Application to which you want to add a host distribution rule.

  3. On the Search Administration page, in the left navigation bar, click Host Distribution Rules.

  4. On the Host Distribution Rules page, click Add Distribution Rule.

    Note

    If there is only one crawl database in the Search Service Application, you cannot add a host distribution rule, and this option will not appear.

  5. On the Add Host Rule page, in the Hostname field, enter the name of the host to which this rule applies.

  6. In the Distribution Configuration list, select the crawl database you want to participate in the crawl of this host.

  7. Click OK to add the new mirror query component to the job queue.

  8. On the Host Distribution Rules page, click Apply Changes.

  9. Click OK to apply the rule.

To remove a host distribution rule

  1. In Central Administration, in the Application Management section, click Manage service applications.

  2. On the Service Applications page, click the name of the Search Service Application from which you want to remove a host distribution rule.

  3. On the Search Administration page, in the left navigation bar, click Host Distribution Rules.

  4. On the Host Distribution Rules page, position the mouse over the host distribution rule you want to delete, click the down arrow that appears to the right of the rule name, and then click Delete.

  5. In the message box that appears, click OK to add the removal of the host distribution rule to the job queue.

  6. On the Host Distribution Rules page, click Apply Changes.

  7. Click OK to delete the rule.