When you deploy and configure a Search service application, you perform the following main Create accounts — Certain domain user accounts are required specifically for a Search service application. Create a Search service application — A Search service application provides enterprise search features and functionality. Configure the Search service application — Basic configuration of a Search service application includes configuring a default content access account, an email contact, and content sources. Configure the Search service application topology — You can deploy search components on different servers in the farm. You can also specify which instance of SQL Server is used to host the search-related databases. The following lists the accounts that are required when a Search service application is created. Account Description Notes Search service Windows user credentials for the SharePoint Server Search service, which is a Windows service This setting applies to all Search service applications in the farm. You can change this account at any time by clicking Configure service accounts in the Security section on the Central Administration home page.
Search Admin Web pool Search Query and Site Web pool Windows user credentials For each of these accounts, you can use the same credentials that you specified for the Search service. Or, you can assign different credentials to each account according to the principle of administration. Default content access Windows user credentials for the Search service application to use to access content We recommend that you specify a separate account for the default content access account according to
On the home page of the Central Administration website, in the Application Management section, click Manage service applications. On the Manage Service Applications page, the Search service application that you want to configure. On the Search Administration page, configure the settings as described in the following sections: Specify the default content access account Specify the contact address Create content sources When you create a Search service application, the account that you specify for the Search service is automatically configured as the default content access account. The crawler uses this account to crawl content that does not have an associated crawl rule that specifies a different account. For the default content access account, we recommend that you specify a domain user account that has read access to as much of the content that you want to crawl as possible. You can change the default content access account at any time. If you have to crawl certain content by using a different account, you can create a crawl rule and specify a different account for crawling. For information about how to create a crawl rule, see . Use the following procedure to specify the default content access account. To specify the default content access account On the Search Administration page, in the System Status section, the link in the Default content access account row. In the Default Content Access Account dialog box, in the Account box, type the account that you created for content access in the form domain\user name. Type the password for this account in the Password and Confirm Password boxes. Click OK. The Search service writes the contact address to the logs of crawled servers. The default contact email address, someone@example.com, is a placeholder. We recommend that you change this to an account that an external administrator can contact when a crawl might be contributing to a problem such as a decrease in performance on a server that the search system is crawling. Use the following procedure to specify the contact email address.
Create search service application Click on "Manage Service Applications" under Application Management from central administration. on search service application from new service application list. Figure: Create Search service application. Scroll down a little bit from the "Create New Search Service Application" popup screen, then Select the create a new application pool and enter the application pool name as "SP-Search Admin Web Service"and select the account as "spsearch". Please see the below Figure. Scroll down a little bit more from the popup screen, then Select the create a new application pool and enter the application pool name as "SP-Search Query and Site Settings Web" and select the security account as "spsearch". You have entered all the required values to create the search service application, hit the OK button. It will show the below dialog box "Please wait while your changes are processed for search service application". It will the show the below screen as the final status of completion of creating the search service application. Please see the below Figure. To verify it you can go and check under the "Manage Service Applications" section you will have newly created "Search Service Application". Configure search service application: Click on Search Service Application from the above figure to see the administration page details of search. It will display the below figures. By selecting various parameters under system status of search administration you can configure search. You can observe that the "default Content access account" here is "SPSearch". Please see the below screen. Second half of the search administration and main one is Search Application Topology. Please see the below screen there are four databases created by creation of Search service application. Administration database Analytics Reporting Database