Himmat Singh Dulawat (3x Sitecore MVP)

After execution of the Rebuild index on xDB app service I observed that in SOLR Cloud, the data is not reflected in the xdb_internal collection but is being updated in the xdb_rebuild_internal collection. I have checked the Application Insight and found the following exception: In regards to the Errno 50000: Sync token is no longer valid for [Contacts] table error, Rebuilding the xDB index in Solr  should fix it but regrettably, it could not fix my issue. Indeed, when rebuilding the xDB index, the rebuild collection will be updated, and you will need to swap the cores to ensure that the newly rebuilt core is active instead of the prior one. This is mentioned in the " Confirm rebuild " part of the documentation. Therefore, I tried swapping the core mentioned in the Sitecore documentation but unfortunately, it's not working and returning me the error: "Not supported in SolrCloud". I have gone through the SOLR guide documen

If you are using the SOLR search provider, to rebuild the request command we need to build the xDB index using the command manually from the xDB app service in Sitecore XP. You can find more details here: Invoke the rebuild request command Upon execution command, you get the following output: The index rebuild process takes time to complete and the request rebuild command does not provide any information about the progress status. However, there are certain ways you can monitor the state of an ongoing rebuild process. To Monitor the Index Rebuild Process: SOLR Interface: You can do so by running the following query by navigating to the original xDB Solr core and go to the Query tab. On the Query tab, insert the above into "q" part and click "Execute Query". Once executed, we should be able to see the result as such. In this example, the rebuild state is at 5 (Ongoing) and it is at 95%.