We have 6 mailbox servers running Exchange 2013 SP1 CU8. MSExchangeHM (Health Manager service) is regularly crashing with:

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

and

The Microsoft Exchange Diagnostics service terminated unexpectedly.  It has done this 18 time(s).  The following corrective action will be taken in 60000 milliseconds: Restart the service.

Looks like similar issues are happening for others. Does anyone know if this is a known issue with HM, or can something be done? No information about why it is crashing can be gathered from logs. It just crashes and restarts.

https://social.technet.microsoft.com/Forums/ie/en-US/53563f4a-63b0-479f-a441-9b690f6c9da4/msexchangehm?forum=exchangesvradmin

https://social.technet.microsoft.com/Forums/office/en-US/250a3b4e-b2d4-4140-aaa7-efb429111602/exchange-health-manager-service-terminating-cu7?forum=exchangesvradmin

Note to mods/CSG: Please don't mark your own replies as an answer if they aren't. This seems to happen a lot nowadays and it is effectively killing the Microsoft forums, because people with real answers will not be inclined to answer anymore.

• Edited by ®win Friday, June 05, 2015 8:21 PM

Hi win,

Thank you for your question.

This issue was caused by Exchange update then there are some modifications in the register, so we should make sure register configuration is correct, then restart the Exchange server to check if the issue persist. We could refer to the following link to modify it:

https://social.technet.microsoft.com/Forums/exchange/en-US/7953ab3a-1c9c-4a3d-b45c-1cdbfdf4a4b4/the-microsoft-exchange-diagnostics-service-terminated-unexpectedly?forum=exchangesvrgeneral

There is a bog for us to troubleshoot by the following link:

http://blogs.technet.com/b/anya/archive/2014/11/25/microsoft-exchange-diagnostics-service-crashing-post-cu6-upgrade.aspx

Notice: this is a link which is about Exchange 2013 CU6, but it is adapted to Exchange 2013 CU8.

If there are any questions regarding this issue, please be free to let me know.

Best Regard,