connect to erlang 20 failed

[ziyouchutuwenwu]

erl -name rico@127.0.0.1 --setcookie 123
Erlang/OTP 20 [erts-9.1.2] [source] [64-bit] [smp:4:4] [ds:4:4:10] [async-threads:10] [hipe] [kernel-poll:false] [dtrace]

Eshell V9.1.2  (abort with ^G)
(rico@127.0.0.1)2> net_adm:ping('examplenode@127.0.0.1').
pang
(rico@127.0.0.1)3>
=ERROR REPORT==== 14-Oct-2017::21:45:42 ===
** 'rico@127.0.0.1': Connection attempt to node 'examplenode@127.0.0.1' aborted since it cannot handle ["UTF8_ATOMS"].**

(rico@127.0.0.1)3> erlang:system_info(otp_release).
"20"

[halturin]

Hi

could you please run the node with enabled debug information like this

./gonode -cookie 123 -epmd_port 12321 -trace.node -trace.dist

and show me the log.

[ziyouchutuwenwu]

test code

https://github.com/halturin/ergonode/blob/master/examples/gonode.go

run go app from shell

./my_app -cookie 123 -epmd_port 12321 -trace.node -trace.dist

log from golang console

017/10/14 22:35:55 Start with name 'examplenode@127.0.0.1' and cookie '123'
2017/10/14 22:35:55 Read from EPMD 4: [121 0 0 2]
2017/10/14 22:35:55 From EPMD: [121 0 0 2]
2017/10/14 22:35:55 NET_KERNEL: Init: []interface {}(nil)
2017/10/14 22:35:55 GLOBAL_NAME_SERVER: Init: []interface {}(nil)
2017/10/14 22:35:55 REX: Init: []interface {}(nil)
2017/10/14 22:35:55 Provide: rpc:call (ergonode.rpcFunction)(0x111b420)
Allowed commands...
gen_server:cast({examplegs,'examplenode@127.0.0.1'}, stop).
gen_server:call({examplegs,'examplenode@127.0.0.1'}, pid).
gen_server:cast({examplegs,'examplenode@127.0.0.1'}, {ping, self()}), flush().
make remote call by golang node...
gen_server:call({examplegs,'examplenode@127.0.0.1'}, {testcall, {Pid, Message}}).
gen_server:call({examplegs,'examplenode@127.0.0.1'}, {testcall, {{pname, remotenode}, Message}}).

run connect from erlang shell

net_adm:ping('examplenode@127.0.0.1').

fail info from erlang shell

pang

=ERROR REPORT==== 14-Oct-2017::22:36:10 ===
** 'rico@127.0.0.1': Connection attempt to node 'examplenode@127.0.0.1' aborted since it cannot handle ["UTF8_ATOMS"].**

go app log after erlang node try to connect

2017/10/14 22:36:10 Accepted new connection from 127.0.0.1:55567
2017/10/14 22:36:10 d# Read from enode 21: [110 0 5 0 7 127 253 114 105 99 111 64 49 50 55 46 48 46 48 46 49]
2017/10/14 22:36:10 d# Write to enode: [0 3 115 111 107]
2017/10/14 22:36:10 d# Write to enode: [0 32 110 0 5 0 0 113 69 65 198 28 181 101 120 97 109 112 108 101 110 111 100 101 64 49 50 55 46 48 46 48 46 49]
2017/10/14 22:36:10 Node terms: []etf.Term(nil)
2017/10/14 22:36:10 Enode error (reading): EOF

[halturin]

Done.