Identify the Application Pool for a Service Application

1) Start –>Run –> inetmgr

2) Under the Sites click on SharePoint Web Services. This will list down the Services in SharePoint.

3) Click on each GUID –> Change the view from Features View to Content View

4) On finding SearchService.svc -> Right click that web service -> Manage Application -> Advanced Settings.

5) Identify the Application Pool (make a note of this).

6) Now in IIS –> Application Pools –> choose the Application Pool you noted down in previous step   -> Recycle (recycle the application pool).