After upgrading to epo 5.9.1 , MSSQL$EPOSERVER stops within few hours.
The description for Event ID 17311 from source MSSQL$EPOSERVER cannot be found. Either the component that raises this event is not installed on your local computer or the installation is corrupted. You can install or repair the component on the local computer.
If the event originated on another computer, the display information had to be saved with the event.
The following information was included with the event:
Is the service for sql actually stopping, or just epo losing connection to the database? Did you happen to run the key migration yet? Try running the steps in kb66616 at step 11 to regenerate the certificate. Do you have a backup of your keystore folders? Check KB90182 to see if that applies.
You also might want to check the orion logs for what errors you are getting. sql express is limited to 10gb for database size. Has the database run out of space, or are there out of memory errors in the orion log? That is located in the epo install directory under server\logs.
Sql service stops at regular interval and need to start teh sql EPOSERVER service. Orion log is attached. Also as described in KB87017
Here agents are not communicating after performing till steps 9. So we cancel the migration process as we have more than 3000 nodes in our environment.
Try running the steps in kb66616 at step 11 to regenerate the certificate
Will all agents that communicate automatically if certificate has beeen regenerated without deploying agents again.