Selenium grid Console showing "[/127.0.0.1] failed: Connection refused"

Question

Please refer to attached screen shot. I've registed 2 emulators to Selenium HUB ( started appium server for each of them )

But it's showing this error message, I'm not sure what does it mean ? Is there something I'm doing wrong ?

Please clarify

To keep it simple I tried launching HUB and registering appium nodes from command line

I got below output from command line

appium --nodeconfig EMULATOR_Nexus_4_1.json  
[Appium] Welcome to Appium v1.6.3 
[Appium] Non-default server args:  
[Appium]   nodeconfig: 'EMULATOR_Nexus_4_1.json' 
[debug] [Appium] Starting auto register thread for grid. Will try to register every 5000 ms. 
[Appium] Appium REST http interface listener started on 0.0.0.0:4723 
[debug] [Appium] Appium successfully registered with the grid on localhost:4444

But on hub console, still seeing same error per screen shot. Not sure what may be going wrong here ?

Answer 1

node config file entry was wrong earlier.

Worked with below

{"capabilities":[{"browserName":"Nexus_4_1","version":"4.4.2","maxInstances":1,"platform":"ANDROID"}],"configuration":{"nodeTimeout":120,"port":4723,"hubPort":4444,"proxy":"org.openqa.grid.selenium.proxy.DefaultRemoteProxy","hubHost":"127.0.0.1", "nodePolling":2000, "registerCycle":10000,"register":true,"cleanUpCycle":2000,"timeout":30000,"maxSession":1}}

Refereed to http://www.vimalselvam.com/2016/05/15/selenium-grid-for-appium-mobile-automation/