Video 26/Selenium grid/ node register

Hi Ashish,

When i try to register node then it shows below mentioned message in console.
Could you please look into it.

Command used:
java -jar D:\AshishThakur\grid\selenium-server-standalone-3.0.0-beta3.jar -role webdriver -hub http://localhost:4444/
grid/register -port 5556

Console Output:

D:\>java -jar D:\AshishThakur\grid\selenium-server-standalone-3.0.0-beta3.jar -r
ole webdriver -hub http://localhost:4444/
01:03:25.530 INFO - Selenium build info: version: '3.0.0-beta3', revision: 'c7b5
25d'
01:03:25.531 INFO - Launching a Selenium Grid node
2016-09-24 01:03:26.636:INFO::main: Logging initialized @1630ms
01:03:26.684 INFO - Driver class not found: com.opera.core.systems.OperaDriver
01:03:26.685 INFO - Driver provider com.opera.core.systems.OperaDriver is not re
gistered
01:03:26.696 INFO - Driver provider org.openqa.selenium.safari.SafariDriver regi
stration is skipped:
registration capabilities Capabilities [{browserName=safari, version=, platform=
MAC}] does not match the current platform VISTA
01:03:26.699 INFO - Driver class not found: org.openqa.selenium.htmlunit.HtmlUni
tDriver
01:03:26.700 INFO - Driver provider org.openqa.selenium.htmlunit.HtmlUnitDriver
is not registered
2016-09-24 01:03:26.737:INFO:osjs.Server:main: jetty-9.2.15.v20160210
2016-09-24 01:03:26.770:INFO:osjsh.ContextHandler:main: Started o.s.j.s.ServletC
ontextHandler@402e37bc{/,null,AVAILABLE}
2016-09-24 01:03:26.796:INFO:osjs.ServerConnector:main: Started ServerConnector@
223f3642{HTTP/1.1}{0.0.0.0:5555}
2016-09-24 01:03:26.798:INFO:osjs.Server:main: Started @1792ms
01:03:26.799 INFO - Selenium Grid node is up and ready to register to the hub
01:03:26.811 INFO - Starting auto registration thread. Will try to register ever
y 5000 ms.
01:03:26.813 INFO - Registering the node to the hub: http://localhost:4444/grid/
register
01:03:26.858 INFO - The node is registered to the hub and ready to use
01:03:37.462 INFO - SessionCleaner initialized with insideBrowserTimeout 0 and c
lientGoneTimeout 1800000 polling every 180000