We have been seeing this error in the Operations Manager Event Log for quite a while.
Alert subscription data source module was unable to find alerts that match the subscription because of database errors.
The following error(s) were encountered:
Exception Message: ExecuteScalar requires an open and available Connection. The connection's current state is closed.
One or more workflows were affected by this.
Workflow name: MMEA_1348391424
Instance name: aaa.bbb.com
Instance ID: {88AED57C-5627-0C0B-E5C1-A9176A7E64CD}
Management group: SCOMr2
I haven't been able to spot any network outage on the management servers, or the database servers to indicate a problem. It usually happens at night, and when I look at the health explorer, the entity is healthy.
Please would someone help me in finding the root cause of this issue and what can be done to avoid it.
There were no backups running when this alert was generated. As far as I'm aware, everything was idle.
I would appreciate any help.
Karan