MSExchange ADAccess 2050

  • Article

 

This article provides an explanation and possible resolutions for a specific Exchange event. If you don't find what you’re looking for here, try searching Exchange 2010 Help.

Details

Product Name

Exchange

Product Version

14.0

Event ID

2050

Category

General

Symbolic Name

DSC_EVENT_SHMEM_HEAP

Message Text

Process %1 (PID=%2). The shared memory heap could not be created. This may be caused if physical memory limits have been exceeded. It may also be caused if too many other processes are running DSAccess. You may be able to resolve this error by restarting the Exchange server that logged this event.

Explanation

This Error event indicates that the Microsoft Exchange Active Directory Topology service (MSExchangeADTopologyService.exe) startup will fail because a shared memory heap cannot be created. This situation may occur because:

  • Internal Epoxy (ExIPC) has failed. Epoxy is a shared memory mechanism that enables Internet Information Services (Inetinfo.exe) and the Microsoft Exchange Information Store service (Store.exe) processes to quickly shuttle data back and forth. This memory is also used by DSAccess, the Exchange component that caches Active Directory information.

  • Physical memory limits are exceeded.

  • Too many other processes are running DSAccess. Epoxy has a limit of 10 processes per heap.

User Action

To resolve this error, restart the computer.

For More Information

If you are not already doing so, consider running the Exchange tools, which have been created to help you analyze and troubleshoot your Exchange environment. These tools can help make sure that your configuration aligns with Microsoft best practices. They can also help you identify and resolve performance issues and improve mail flow. To run these tools, go to the Toolbox node of the Exchange Management Console. To learn more about these tools, see Managing Tools in the Toolbox.