Wednesday 20 April 2016

The search service is not able to connect to the machine that hosts the administration component. Verify that the administration component in search application 'Enterprise Search Service Application' is in a good state and try again.

Found this error on the APAC farm, The search service is not able to connect to the machine that hosts the administration component. Verify that the administration component  in search application 'Enterprise Search Service Application' is in a good state and try again.

After looking at the ULS log found the databases were not in compatibility mode.

You can go to Upgrade and Migration, Click on Review Databases , check if the search databases are in backward compatibility mode 


run psconfig if not upradge the databases manually this tends to happen when you have automated patching on the farm sometimes for windows updates.