Exchange Mailbox Replication service terminated unexpectedly

Question

_{Wednesday, February 21, 2018 10:37 PM}

I see Exchange Mailbox Replication service terminated unexpectedly almost every day in event system log with EventID 7031.

The Microsoft Exchange Mailbox Replication service terminated unexpectedly.  It has done this 1 time(s).  The following corrective action will be taken in 5000 milliseconds: Restart the service.

The application log show a lot Eventid 1012.

The Microsoft Exchange Mailbox Replication service hit an unexpected failure.
Request Guid:
6f80c148-495f-46a3-a8e9-c56a166ce242 Request Job:
DB#2d522950-9c9e-4dc3-98df-8218cffd2830\6f80c148-495f-46a3-a8e9-c56a166ce242Request Type:
MailboxExportFailure type:
CorruptBlockBTreeExceptionException:

I ran the get-mailboxexportrequest and get nothing. get-job 6f80c148-495f-46a3-a8e9-c56a166ce242 returns nothing.

Get-mailboxdatabase 2d522950-9c9e-4dc3-98df-8218cffd2830 show a valid DB. There are quite a lot of such DBs. Almost all DBs are shown up in the eventlog. 

Get-mailbox 6f80c148-495f-46a3-a8e9-c56a166ce242 returns nothing.

I had a job to export all mailbox to pst on a daily basis. But I have disabled it and removed all export requests.

Any input is appreciated. Thanks.

All replies (4)

_{Friday, February 23, 2018 5:38 PM ✅Answered}

I found solution. Run remove-mailboxexportrequest -guid xxx -MoveRequestQueue yyy. It is strange that get-mailboxexportreqeest return nothing, but the request is actually there. MS needs to debug this.

_{Wednesday, February 21, 2018 10:59 PM}

It happens after I upgraded to Exchange Server 2016 CU8.

_{Thursday, February 22, 2018 7:48 AM}

Hi,

Based on your description, I know that you are getting the Event 7031 and 1012 after the Exchange 2016 CU8.

This issue occur when we failed to export mailboxes to PST, at the same time, Mailbox Replication service restarts repeatedly.

For troubleshooting, please stop to share the PST destination folder or move the PST files to other location, then check if issue persists.

Hope it helps.

Regards,

Manu Meng

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_{Thursday, October 17, 2019 10:57 PM}

Here's an easy fix that worked for me.

http://jermsmit.com/exchange-2013-dbs-not-mounting-microsoft-replication-crashing/#comments

Hot pink text at the bottom of the article.