Can not access localhost:4444/grid/register

[BryanN0919]

Meta -

OS: Windows 10

Selenium Version: 3.14.0

Browser: N/A

Browser Version:

Expected Behavior -

Should be able to access the /grid/register page.

Actual Behavior -

I get the below error when going to /grid/register. Same error shows in the cmd window I used to start the hub.

HTTP ERROR 500
Problem accessing /grid/register/. Reason:

Server Error

Caused by:
org.openqa.selenium.json.JsonException: Expected to read a START_MAP but instead have: END. Last 0 characters read:
Build info: version: '3.14.0', revision: 'aacccce0', time: '2018-08-02T20:13:22.693Z'
System info: host: 'CFSQA752319LT1', ip: '165.150.2.177', os.name: 'Windows 10', os.arch: 'amd64', os.version: '10.0', java.version: '1.8.0_181'
Driver info: driver.version: unknown
at org.openqa.selenium.json.JsonInput.expect(JsonInput.java:289)
at org.openqa.selenium.json.JsonInput.beginObject(JsonInput.java:219)
at org.openqa.selenium.json.MapCoercer.lambda$apply$1(MapCoercer.java:64)
at org.openqa.selenium.json.JsonTypeCoercer.lambda$null$6(JsonTypeCoercer.java:142)
at org.openqa.selenium.json.JsonTypeCoercer.coerce(JsonTypeCoercer.java:123)
at org.openqa.selenium.json.Json.toType(Json.java:60)
at org.openqa.selenium.json.Json.toType(Json.java:50)
at org.openqa.grid.web.servlet.RegistrationServlet.process(RegistrationServlet.java:83)
at org.openqa.grid.web.servlet.RegistrationServlet.doGet(RegistrationServlet.java:64)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:687)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
at org.seleniumhq.jetty9.servlet.ServletHolder.handle(ServletHolder.java:860)
at org.seleniumhq.jetty9.servlet.ServletHandler.doHandle(ServletHandler.java:535)
at org.seleniumhq.jetty9.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
at org.seleniumhq.jetty9.security.SecurityHandler.handle(SecurityHandler.java:548)
at org.seleniumhq.jetty9.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
at org.seleniumhq.jetty9.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:190)
at org.seleniumhq.jetty9.server.session.SessionHandler.doHandle(SessionHandler.java:1595)
at org.seleniumhq.jetty9.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:188)
at org.seleniumhq.jetty9.server.handler.ContextHandler.doHandle(ContextHandler.java:1253)
at org.seleniumhq.jetty9.server.handler.ScopedHandler.nextScope(ScopedHandler.java:168)
at org.seleniumhq.jetty9.servlet.ServletHandler.doScope(ServletHandler.java:473)
at org.seleniumhq.jetty9.server.session.SessionHandler.doScope(SessionHandler.java:1564)
at org.seleniumhq.jetty9.server.handler.ScopedHandler.nextScope(ScopedHandler.java:166)
at org.seleniumhq.jetty9.server.handler.ContextHandler.doScope(ContextHandler.java:1155)
at org.seleniumhq.jetty9.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
at org.seleniumhq.jetty9.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
at org.seleniumhq.jetty9.server.Server.handle(Server.java:530)
at org.seleniumhq.jetty9.server.HttpChannel.handle(HttpChannel.java:347)
at org.seleniumhq.jetty9.server.HttpConnection.onFillable(HttpConnection.java:256)
at org.seleniumhq.jetty9.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:279)
at org.seleniumhq.jetty9.io.FillInterest.fillable(FillInterest.java:102)
at org.seleniumhq.jetty9.io.ChannelEndPoint$2.run(ChannelEndPoint.java:124)
at org.seleniumhq.jetty9.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:247)
at org.seleniumhq.jetty9.util.thread.strategy.EatWhatYouKill.produce(EatWhatYouKill.java:140)
at org.seleniumhq.jetty9.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:708)
at org.seleniumhq.jetty9.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:626)
at java.lang.Thread.run(Unknown Source)

Steps to reproduce -

Performed: java -jar selenium-server-standalone-3.1.0.jar -role hub After that completed I tried to access http://165.150.2.136:4444/grid/register/ (Also tried the current version 3.14.0)

[barancev]

What do you mean by "trying to access"?

[praveen4463]

@BryanN0919 the endpoint you're trying to access is used to register a 'node' with an instance of RegistrationRequest. This endpoint has nothing to return in response of a GET (which is what you're trying). The error tells that it expects a json registration request but instead got an empty request body.
after a hub is up, all you'd have to do is register a node but that's done by executing a similar command with the role of 'node'.
after the hub is up, you can just view the grid on a browser by visiting '/status' (if that's what you were trying to see)

[yahyakara]

@BryanN0919 did you find the solution ?

[suveerprithipal]

Yes, as mentioned above, we dont access that URL directly.

1. You should go to http:///grid/console via your browser instead.
2. Your nodes will register against your hub using the http:///grid/register/
3. In your tests, when you register a RemoteWebDriver, you will need to use http:///wd/hub/

Feel free to give me a shout if you would like a more detailed session to get your grid up and running.

[diemol]

Thanks @suveerprithipal for a complete answer.

Closing as this is not really a bug.

[Yashika2804]

Yes, as mentioned above, we dont access that URL directly.

1. You should go to http:///grid/console via your browser instead.
2. Your nodes will register against your hub using the http:///grid/register/
3. In your tests, when you register a RemoteWebDriver, you will need to use http:///wd/hub/

Feel free to give me a shout if you would like a more detailed session to get your grid up and running.

I get the following error on the node Appium log

Grid registration error: Cannot find proxy with ID =http://127.0.0.1:4623 in the registry.

I am also getting this exception in the ../grid/register

org.openqa.selenium.json.JsonException: Expected to read a START_MAP but instead have: END. Last 0 characters read:

Can I please know the solution?