I installed dgraph and I am not able to get it to work. I am using the code from latest master
$ dgraph zero --port_offset -2000
Setting up grpc listener at: 0.0.0.0:5080
Setting up http listener at: 0.0.0.0:6080
2017/12/18 13:28:11 node.go:248: Found hardstate: {Term:5 Vote:1 Commit:13 XXX_unrecognized:[]}
2017/12/18 13:28:11 node.go:260: Group 0 found 13 entries
2017/12/18 13:28:11 raft.go:400: Restarting node for dgraphzero
2017/12/18 13:28:11 raft.go:567: INFO: 1 became follower at term 5
2017/12/18 13:28:11 raft.go:315: INFO: newRaft 1 [peers: [], term: 5, commit: 13, applied: 0, lastindex: 13, lastterm: 5]
Running Dgraph zero...
2017/12/18 13:28:11 node.go:127: Setting conf state to nodes:1
2017/12/18 13:28:14 raft.go:749: INFO: 1 is starting a new election at term 5
2017/12/18 13:28:14 raft.go:580: INFO: 1 became candidate at term 6
2017/12/18 13:28:14 raft.go:664: INFO: 1 received MsgVoteResp from 1 at term 6
2017/12/18 13:28:14 raft.go:621: INFO: 1 became leader at term 6
2017/12/18 13:28:14 node.go:301: INFO: raft.node: 1 elected leader 1 at term 6
and
$ dgraph server --memory_mb 4048 --zero localhost:5080
2017/12/18 13:28:56 groups.go:94: Current Raft Id: 0
2017/12/18 13:28:56 gRPC server started. Listening on port 9080
2017/12/18 13:28:56 HTTP server started. Listening on port 8080
2017/12/18 13:28:56 worker.go:99: Worker listening at address: [::]:7080
2017/12/18 13:28:56 pool.go:167: Echo error from localhost:5080. Err: rpc error: code = ResourceExhausted desc = grpc: received message larger than max (12 vs. 4294967296)
2017/12/18 13:28:56 pool.go:118: == CONNECT ==> Setting localhost:5080
2017/12/18 13:28:56 groups.go:110: Error while connecting with group zero: rpc error: code = ResourceExhausted desc = grpc: received message larger than max (16 vs. 4294967296)
2017/12/18 13:28:56 groups.go:110: Error while connecting with group zero: rpc error: code = ResourceExhausted desc = grpc: received message larger than max (16 vs. 4294967296)
2017/12/18 13:28:56 groups.go:110: Error while connecting with group zero: rpc error: code = ResourceExhausted desc = grpc: received message larger than max (16 vs. 4294967296)
2017/12/18 13:28:56 groups.go:110: Error while connecting with group zero: rpc error: code = ResourceExhausted desc = grpc: received message larger than max (16 vs. 4294967296)
2017/12/18 13:28:57 groups.go:110: Error while connecting with group zero: rpc error: code = ResourceExhausted desc = grpc: received message larger than max (16 vs. 4294967296)
2017/12/18 13:28:57 groups.go:110: Error while connecting with group zero: rpc error: code = ResourceExhausted desc = grpc: received message larger than max (16 vs. 4294967296)
2017/12/18 13:28:59 groups.go:110: Error while connecting with group zero: rpc error: code = ResourceExhausted desc = grpc: received message larger than max (16 vs. 4294967296)
2017/12/18 13:29:02 groups.go:110: Error while connecting with group zero: rpc error: code = ResourceExhausted desc = grpc: received message larger than max (16 vs. 4294967296)
2017/12/18 13:29:06 pool.go:167: Echo error from localhost:5080. Err: rpc error: code = ResourceExhausted desc = grpc: received message larger than max (12 vs. 4294967296)
2017/12/18 13:29:09 groups.go:110: Error while connecting with group zero: rpc error: code = ResourceExhausted desc = grpc: received message larger than max (16 vs. 4294967296)
2017/12/18 13:29:16 pool.go:167: Echo error from localhost:5080. Err: rpc error: code = ResourceExhausted desc = grpc: received message larger than max (12 vs. 4294967296)
2017/12/18 13:29:21 Unable to join cluster via dgraphzero