The Search Service is not Able to Connect to the Machine that Hosts the Administration Component.
The search service is not able to connect to the machine that hosts the administration component.
The search service is not able to connect to the machine that hosts the administration component. Verify that the administration component in search application ‘Search Service Application′ is in a good state and try again.”
Error :- The search service is not able to connect to the machine that hosts the administration component. Verify that the administration component ‘XXXXXXXXXXXX′ in search application ‘Search Service Application 8′ is in a good state and try again.”
Solution: please follow the below steps to resolve the issue.
1.Change the app pool of the search service to "SharePoint Web Services Default". in the properties of the search service.
CA-->Manage Service Applications-->Select "Search Service Application"
2.in the ribbon control choose "Properties".
then change the below both service’s app pool to "SharePoint Web Services Default"
App Pool For Search Admin Web Service,
Application Pool for Search Query and Site Settings Web Service
Note: I resolved the issue by above Method. If you find a different solution, please report it as a comment to this post. This will be useful to SharePoint Community. Be sure to double-verify it: undo your solution and verify that the problem comes back, then redo it and verify that the problem goes away.