Grpc: Message length exceeding max size.

[manishrjain]

2016/12/20 11:57:34 error.go:44: rpc error: code = 13 desc = grpc: received message length 65763954 exceeding the max size 4194304

[manishrjain]

-------> SNAPSHOT [1] from 1
RECEIVED: MsgApp 1-->4
Streaming data for group: 1
2016/12/20 12:02:24 error.go:44: rpc error: code = 13 desc = grpc: received message length 65763954 exceeding the max size 4194304

github.com/dgraph-io/dgraph/x.Wrap
	/home/mrjn/go/src/github.com/dgraph-io/dgraph/x/error.go:84
github.com/dgraph-io/dgraph/x.Check
	/home/mrjn/go/src/github.com/dgraph-io/dgraph/x/error.go:44
github.com/dgraph-io/dgraph/x.Check2
	/home/mrjn/go/src/github.com/dgraph-io/dgraph/x/error.go:57
github.com/dgraph-io/dgraph/worker.(*node).retrieveSnapshot
	/home/mrjn/go/src/github.com/dgraph-io/dgraph/worker/draft.go:419
github.com/dgraph-io/dgraph/worker.(*node).Run
	/home/mrjn/go/src/github.com/dgraph-io/dgraph/worker/draft.go:454
runtime.goexit
	/usr/lib/go/src/runtime/asm_amd64.s:2086

[manishrjain]

#398

[manishrjain]

Fixed with the above PR.