I have seen several issues on the RMS and through troubleshooting, a number are all linked to the same problem. Issues seen are the RMS State appearing greyed out in the console, Alert Notifications not being sent via the SMTP channel (though other channels may be affected as well) and Event 623 generated by the Health Service ESE Store, present in the Operations Manager event log. I am sure there are plenty of other symptoms that are caused by this issue. Luckily, the main cause is identified by my last point, Event 623. Searching for Event ID 623 led me to a post by Patrick Schneider in which he outlines the symptoms and offers the steps required to resolve the issues.
Below are the symptoms I have seen, all of which were resolved by implementing the registry changes suggested by Patrick
SYMPTOMS
- The OpsMgr RMS appears as Greyed out or Unavailable.
- Alert Notifications are not being sent via the SMTP channel (other may be affected though)
- The following event appears a number of times in the Operations Manager event log:Event Source: Health Service ESE Store
Event Category: Transaction Manager
Event ID: 623
Description: HealthService (<PID>) The version store for instance <instance> (“<name>“) has reached its maximum size of <value>Mb. It is likely that a long-running transaction is preventing cleanup of the version store and causing it to build up in size. Updates will be rejected until the long-running transaction has been completely committed or rolled back. Possible long-running transaction:
SessionId: <value>
Session-context: <value>
Session-context ThreadId: <value>.
Cleanup:<value>
RESOLUTION
As Patrick has done a great job documenting the solution, I won’t reproduce his fantastic work. You can find the solution on his blog here.
