enable continuous crawls for existing content sources
Verify that the user account that is performing this procedure is the administrator of the Search Service application.
In central administration, in the Application Management section, click Manage Service Applications.
Click Search Service Application.
On the Search administration page, in the Quick Launch, click Content Sources under crawling.
On the Manage Content Sources page, click the SharePoint content source for which you want to enable continuous crawling.
In the Crawl Schedule section, select Enable continuous crawls.
Click OK.
Verify: On the Manage Content Sources page, verify that the Status column has a continuous crawl status.
enable continuous crawls for new content sources
Verify that the user account that is performing this procedure is the administrator of the Search Service application.
In central administration, in the Application Management section, click Manage Service Applications.
Click Search Service Application.
On thesearch_service_application_name: Search Administration page, in the Quick Launch, click Content Sources under crawling.
On thesearch_service_application_name: Manage Content Sources page, click New Content source.
Create a content source of type SharePoint site.
In the name section, type a name in the Name field.
In the Content Source Type section, select SharePoint sites.
In the Start Address section, type one or more start addresses.
In the Crawl Settings section, select the crawl behavior for all start addresses.
In the Crawl Schedule section, select Enable continuous crawls.
Click OK.
validation: on thesearch_service_application_name: Manage Content Sources page, verify that the newly added content source has a display and that the Status column has a continuous crawl status.
disable continuous crawls for new content sources
Verify that the user account that is performing this procedure is the administrator of the Search Service application.
In central administration, in the Application Management section, click Manage Service Applications.
Click Search Service Application.
On thesearch_service_application_name: Search Administration page, in the Quick Launch, click Content Sources under crawling.
On thesearch_service_application_name: Manage Content Sources page, click the SharePoint content source for which you want to disable continuous crawls.
In the Crawl Schedule section, clear enable incremental crawls. This disables continuous crawls.
To confirm that you want to disable continuous crawls, click OK.
Optional: Click Edit Schedule to change the schedule for the incremental crawl, and then click OK.
On the search_service_application_name: Edit Content Source page, click OK.
Verify: on thesearch_service_application_name: Manage Content Sources page, verify that the status bar is changed to idle. This may take some time because all URLs that are queued in the crawl queue continue to crawl after you disable continuous crawls.
disable continuous crawls for all content sources
Verify that the user account that is performing this procedure is an administrator of the Search Service application.
Enable the SharePoint 2013 Management Shell on one of the servers in the farm.
For more information about how to use Windows Server 2012, see Common management tasks and navigation in Windows Server 2012.
At the Windows PowerShell command prompt, type the following command:
$SSA = Get-spenterprisesearchserviceapplication$spcontentsources = $SSA | Get-spenterprisesearchcrawlcontentsource | WHERE {$_. Type-eq "SharePoint"} foreach ($cs in $SPContentSources) { $cs. enablecontinuouscrawls = $false $cs. Update ()}
validation: on thesearch_service_application_name: Manage Content Sources page, verify that the Status column for all content sources has become idle. This may take some time because all URLs that are queued in the crawl queue continue to crawl after you disable continuous crawls.
change the continuous crawl interval
Verify that the user account that is performing this procedure is a member of the Farm Administrators group.
Start the SharePoint 2013 Management Shell.
For more information about how to interact with Windows Server 2012, see Common management tasks and navigation in Windows Server 2012.
At the Windows PowerShell command prompt, type the following command:
$ssa = Get-spenterprisesearchserviceapplication$ssa. SetProperty ("Continuouscrawlinterval", N)
which
Reference Address: https://technet.microsoft.com/en-us/library/jj219802.aspx
Sharepoint 2013 set up continuous crawl rules (crawl)