Storage Manager error: Times out while waiting for a database connection to become available in the connection pool.

Engine running on OES2018sp3, Storage manager 5.3, Admin console 5.3.0.18.  Broke from one day to the next.  Does not manage home directories.

I checked the firewall on engine server and port 3009 is open.  Also tried shutting down the firewall and still same error.

Using nsmengine-config, I try to stop the service and it hangs and fails.  I am able to start the service and it shows as running but still get the errors.

Top shows the nsmengined process running at 100%Server has 16GB memory and 13GB free.  no space issues on the system partition.