We have received error that one of the database copies had been stuck in a status of “Crawling” for over a day.
To rectify this problem, we did the following:
1. Log onto the affected server and open up services.
2. Restart the “Microsoft Exchange Search Indexer” service:
3. Run the following PowerShell command in EMC:
Update-MailboxDatabaseCopy –Identity DATABASE\SERVER –CatalogOnly
This will update the search index of the database and then you can run the following command to ensure that the database index is now healthy:
Get-MailboxDatabaseCopyStatus -Identity DATABASE\SERVER