When you configure Sitecore servers in a scalable environment, we recommend that you use Solr as your search and indexing provider.
You must configure the indexes you need on each server. As a general rule, on the server you are configuring, you only need the indexes that correspond with the databases that you use. For example, if you are configuring a content delivery server, you need the Web database and the
In Solr, the index storage is centralized and can be shared across multiple servers. Keeping indexes synchronized across servers is therefore easy and requires only a few indexing strategies.
For example, if you have two content management servers that both need to access the same
sitecore_master_index, one content management server could maintain the index and share it or you could have a dedicated server responsible for maintaining all your indexes.
Indexes required on servers in a scalable environment
The following table describes the Sitecore search indexes that are required for different types of servers in a scaled environment:
Search indexes required