We're looking on enabling the indexing of the anonymous contacts in the xdb index, but the https://doc.sitecore.com/en/developers/91/sitecore-experience-platform/enable-indexing-of-anonymous-contacts-in-the-xdb-index.html page warns about the following:

Enabling this setting typically causes a significant increase in the amount of data to be indexed. Make sure that both Solr / Azure Cognitive Search and the xConnect Search Indexer are sized appropriately.

What is "sized appropriately"? Which setting is it referring to? Is it the ParallelizationDegree and BatchSize in the sc.Xdb.Collection.IndexerSettings.xml? What's a general approach to make sure that it's sized appropriately?

  • why do you want to index anonymous contacts? Jul 20, 2021 at 15:42
  • Business requirements. Jul 21, 2021 at 12:31

1 Answer 1


xConnect Search Indexer will either be a Windows Service or Azure WebJob. So, I believe the server in which this service or job is configured should be able to cope up with the processing load - which will be based on the number of visitors that come to your website.

As the index grows in Solr / Azure Cognitive Search, there is also a growth in the server disk space as described in this scenario.

  • Thanks Paulson. We'll be monitoring the search indexer before and after, adjust the settings values as needed. Jul 27, 2021 at 9:50

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