tree d3d7133af9dbeb6fb8e098906f4350bff735f1b3
parent 1a37866929ca05acba71cdadad87dd563b6064dd
author Carmelo Cascone <carmelo@opennetworking.org> 1545097670 -0800
committer Carmelo Cascone <carmelo@opennetworking.org> 1545098334 -0800

Removes the gRPC channel if an exception occurs while instantiating the client

Includes also other minor changes to gRPC channel creation/connection
process, such as:
- More compact logs showing the gRPC client key
- GrpcChannelController.connectChannel() now returns the same
 StatusRuntime exception, no need to wrap it in an IOException
- Wait for channel shutdown after initial connection error

Change-Id: Ib7d2b728b8c82d9f9b2097cffcebd31cac891b27