Symptoms
In a Microsoft Exchange Server 2013 environment, when you restart a Database Availability Group (DAG) node that contains active database copies, the healthy copies on other DAG nodes cannot be enabled. Meanwhile, event ID 4999 for MSExchangeRepl.exe is logged in the Application event log multiple times until the restarted node comes completely online. When this issue is occurring, Windows clients may be disconnected.The following event is recorded in the Application event log:
Log Name: ApplicationSource: MSExchange CommonDate: date timeEvent ID: 4999Task Category: GeneralLevel: ErrorKeywords: ClassicUser: N/AMessage: Watson report about to be sent for process id: 33564, with parameters: E12IIS, c-RTL-AMD64, 15.00.1178.004, msexchangerepl, M.Exchange.Rpc, M.E.R.A.AmRpcClient.IsRunning, System.OutOfMemoryException, da11, 15.00.1178.004.
Cause
This issue occurs because of an "out of memory" issue for remote procedure calls.
Cumulative update information
For Exchange Server 2013
To resolve this issue, install Cumulative Update 15 for Exchange Server 2013 or a later cumulative update for Exchange Server 2013.
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
References
Learn about the terminology that Microsoft uses to describe software updates.
