Exchange Database Content index state: Failed

We have an Exchange 2010 mailbox database with the following 'failed' state on the content index:

Content index state: Failed

Does anyone know how to fix this issue? Is it an error of concern?


I did some research on this issue and found this article http://exchangeserverpro.com/cannot-activate-database-copy-content-index-catalog-files-in-failed-state. Hope this might solve your issue.


Restarted service Microsoft Exchange Search Indexer. Content index state went from status "crawling" to "healthy" after a few hours.