SharePoint 2016 Search requires four application databases: Administration, Crawl, Link, and Analytics Reporting. SharePoint 2016 allows 25 index partitions, each with 20 million indexed items per partition for a total of 500 million items. In a MinRole-compliant farm, all search components exist on servers hosting the Search role. Changing a Search topology with an active index requires that you clone the existing topology, alter the clone, and then activate the cloned topology as the active topology. Search content sources can include SharePoint sites, websites, file shares, Exchange public folders, Lotus Notes (connector install required), Documentum (connector install required), LOB data (using BCS), and custom repositories (requires custom development). The three search crawl types are full, incremental, and continuous (which defaults to running at 15-minute intervals). Crawler impact rules can be used to minimize the effect of a SharePoint crawl on external systems. Search results are security trimmed by default.
A SharePoint 2016 hybrid search environment requires the same six components and four databases, though the index, analytics, and content processing components and Link and Analytics databases are all rendered inactive. The managed metadata service provides a mechanism for defining taxonomical structures throughout your SharePoint 2016 farm. Several service application proxies can be assigned to a single proxy group. Each service application proxy can also be assigned to multiple proxy groups. The content type hub relies on two timer jobs to function correctly: the Content Type Hub job and the Content Type Subscriber job. Terms in a term set can be entered manually or added to an import file that can configure multiple terms at one time. Result sources can use one of four possible protocols: Local SharePoint, Remote SharePoint, OpenSearch, and Exchange. Display templates control the formatting and presentation of search results. Crawled properties can be mapped to managed properties for use within Search. Topic catalog pages include category pages and item pages. User search experience is shaped by query rules, result types, and display templates. Thought experiment In this thought experiment, demonstrate your skills and knowledge of the topics covered in this chapter. You can find the answer to this thought experiment in the next section. You are designing a hybrid search configuration between SharePoint 2016 and Office 365. As Office 365 interacts with multiple technologies, you have been asked several questions, intended to help shape how SharePoint will interact in the Office 365 space. 1. What sort of PowerShell scripts must be run to connect your SharePoint 2016 cloud Search service application to the Office 365 tenant? 2. What components might you use that tie the on-premises environment of SharePoint to SharePoint Online?
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