Indexing service encountered a critical error and is stopping

The Smartermail indexing service stopped with an error after running for a year. I've tried to manually start the service many times, sometime it stop within a few seconds, sometimes a little longer. It seems it can still process some mailboxes in queue. I am using v11.7.5091

08:14:39 Indexing service encountered a critical error and is stopping: System.ArgumentException: An item with the same key has already been added.
at System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value, Boolean add)
at MailStore.Indexing.UserIndexCoordinator.#dfc()

Employee Replied

1/12/2015 at 11:02 PM

Employee Post

Hi Wei. First thing I would recommend is performing all .NET 4 updates on the server, including any optional updates found in Windows Update. If that doesn't resolve your issue, then you should submit a support ticket, as this might be a problem with that specific domain.

Wei Feng Ding Replied

1/14/2015 at 11:36 AM

Hi Rod, The problem has been resolved after reboot the server. Thanks

Wei Feng Ding Replied

9/11/2015 at 5:04 PM

I've updated SM to 14.1 and .Net updates, I still get this error. It happened on two SM servers, the Indexing service stopped and can't manually start. I have to reboot the server to fix it. Is there a way to get this fix without reboot the server?

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