I am using Sitecore 8.2 with MongoDb as a Sitecore xDB.
In our application, Sitecore Custom Contact Facets being used and data for these custom facets already present in MongoDB. Now I wanted to create a new user segmentation rule based on one of the fields and this field, not part of the Search indexing Sitecore Analytics Index (Sitecore_analytics_index) so in order to use the field in the custom segmentation rule, I have to add this field for indexing.
The Sitecore Analytics indexing (Sitecore_analytics_index) is different from Sitecore Content Indexing ( e.g., Sitecore_web_index) so we can't rebuild the Sitecore Analytics Index and it can be only populated during aggregation process, means if any update would happen in the Sitecore Contacts in MongoDB.
In this case, I can't use the custom rule (created on the field which added for indexing) for the old Sitecore Contacts (approximately 1 million).
Also, I can't use SwitchOnRebuildSolrSearchIndex because it's not supported for Sitecore Analytics Index(Sitecore_analytics_index), in this case, if I will try to rebuild then the user will experience the issue on Sitecore Experience Platform, and I assume that it will reset all the data first then start adding again.
I also checked the tool at https://vohil.net/2017/05/16/rebuild-sitecore-analytics-index-without-re-building-reporting-database/ but it's not working properly due to a large number of Sitecore Contacts.
Is there any way to rebuild the Sitecore Analytics Index which has large numbers of Sitecore Contacts without affecting the Sitecore Experience Platform (e.g. use of Sitecore Contacts, segmentation..)?
