Setting up selenium Grid:
I was able to set up grid (hub & node) using below commands in command prompt and then able to launch browsers and execute test successfully.
java -jar selenium-server-standalone-3.4.0.jar -role hub
java -jar selenium-server-standalone-3.4.0.jar -role webdriver -hub "http://localhost:4444/grid/register" -port 5566
When trying to setup selenium grid via script, i was able to setup hub and node successfully, but not able to launch the browser.
Kindly help to resolve the issue.
Please find the code and console below:
package config.HubNode;
import java.net.MalformedURLException;
import java.net.URL;
import org.openqa.grid.common.RegistrationRequest;
import org.openqa.grid.internal.utils.SelfRegisteringRemote;
import org.openqa.grid.internal.utils.configuration.GridHubConfiguration;
import org.openqa.grid.internal.utils.configuration.GridNodeConfiguration;
import org.openqa.grid.web.Hub;
import org.openqa.selenium.Platform;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.remote.DesiredCapabilities;
import org.openqa.selenium.remote.RemoteWebDriver;
public class HubNodeConfig {
public static void main(String[] args) throws Exception {
HubNodeConfig objHubNodeConfig = new HubNodeConfig();
objHubNodeConfig.HubConfig();
System.out.println("Hub Configured Successfully");
objHubNodeConfig.NodeConfig();
System.out.println("Node Configured to Hub Successfully");
objHubNodeConfig.InvokeBrowser();
}
public void HubConfig() throws Exception
{
GridHubConfiguration gridHubConfig = new GridHubConfiguration();
gridHubConfig.role = "hub";
gridHubConfig.host = "localhost";
gridHubConfig.port = 4444;
Hub myHub = new Hub(gridHubConfig);
myHub.start();
}
public void NodeConfig()
{
GridNodeConfiguration gridNodeConfig = new GridNodeConfiguration();
gridNodeConfig.hub = "http://localhost:4444/grid/register"
gridNodeConfig.host = "192.xxx.xx.xx" //my ip address
gridNodeConfig.port = 5566;
gridNodeConfig.role = "webdriver";
RegistrationRequest req = new RegistrationRequest(gridNodeConfig);
req.getConfiguration();
req.validate();
RegistrationRequest.build(gridNodeConfig);
SelfRegisteringRemote remote = new SelfRegisteringRemote(req);
remote.startRegistrationProcess();
}
public void InvokeBrowser() throws MalformedURLException
{
System.setProperty("webdriver.chrome.driver", "E:\\chromedriver.exe");
DesiredCapabilities capability = DesiredCapabilities.chrome();
capability.setBrowserName("chrome");
capability.setPlatform(Platform.WIN10);
WebDriver driver = new RemoteWebDriver(new URL("http://"+gridNodeConfig.host+":"+gridNodeConfig.port+"/wd/hub"), capability);
System.out.println("Driver Launched Successfully");
driver.get("https://google.com");
}
}
Console error message and Screenshot of the Grid:
2017-07-20 23:57:17.135:INFO::main: Logging initialized @2576ms to org.seleniumhq.jetty9.util.log.StdErrLog
Jul 20, 2017 11:57:17 PM org.openqa.grid.web.Hub initServer
INFO: Will listen on 4444
2017-07-20 23:57:17.509:INFO:osjs.Server:main: jetty-9.4.3.v20170317
2017-07-20 23:57:17.569:INFO:osjs.session:main: DefaultSessionIdManager workerName=node0
2017-07-20 23:57:17.570:INFO:osjs.session:main: No SessionScavenger set, using defaults
2017-07-20 23:57:17.573:INFO:osjs.session:main: Scavenging every 600000ms
2017-07-20 23:57:17.592:INFO:osjsh.ContextHandler:main: Started o.s.j.s.ServletContextHandler@1a1d6a08{/,null,AVAILABLE}
2017-07-20 23:57:17.804:INFO:osjs.AbstractConnector:main: Started ServerConnector@77f99a05{HTTP/1.1,[http/1.1]}{0.0.0.0:4444}
2017-07-20 23:57:17.804:INFO:osjs.Server:main: Started @3245ms
Hub Configured Successfully
Jul 20, 2017 11:57:19 PM org.openqa.grid.internal.utils.SelfRegisteringRemote$1 run
INFO: Starting auto registration thread. Will try to register every 5000 ms.
Jul 20, 2017 11:57:19 PM org.openqa.grid.internal.utils.SelfRegisteringRemote registerToHub
INFO: Registering the node to the hub: http: //localhost:4444/grid/register
Node Configured to Hub Successfully
Jul 20, 2017 11:57:19 PM org.openqa.grid.internal.Registry add
INFO: Registered a node http: //192.xxx.xx.xx:5566
Jul 20, 2017 11:57:19 PM org.openqa.grid.internal.utils.SelfRegisteringRemote registerToHub
INFO: The node is registered to the hub and ready to use
Exception in thread "main"
org.openqa.selenium.remote.UnreachableBrowserException: Could not start a new session. Possible causes are invalid address of the remote server or browser start-up failure.
Build info: version: '3.4.0', revision: 'unknown', time: 'unknown'
System info: host: 'KRISH', ip: '192.xxx.xx.xx', os.name: 'Windows 10', os.arch: 'amd64', os.version: '10.0', java.version: '1.8.0_131'
Driver info: driver.version: RemoteWebDriver
at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:658)
at org.openqa.selenium.remote.RemoteWebDriver.startSession(RemoteWebDriver.java:250)
at org.openqa.selenium.remote.RemoteWebDriver.startSession(RemoteWebDriver.java:236)
at org.openqa.selenium.remote.RemoteWebDriver.(RemoteWebDriver.java:137)
at org.openqa.selenium.remote.RemoteWebDriver.(RemoteWebDriver.java:174)
at config.HubNode.HubNodeConfig.InvokeBrowser(HubNodeConfig.java:71)
at config.HubNode.HubNodeConfig.main(HubNodeConfig.java:29)
Caused by: org.apache.http.conn.HttpHostConnectException: Connect to 192.xxx.xx.xx:5566 [/192.xxx.xx.xx] failed: Connection refused: connect
at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:159)
at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:359)
at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:381)
at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:237)
at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:185)
at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:89)
at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:111)
at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:185)
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:72)
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:56)
at org.openqa.selenium.remote.internal.ApacheHttpClient.fallBackExecute(ApacheHttpClient.java:139)
at org.openqa.selenium.remote.internal.ApacheHttpClient.execute(ApacheHttpClient.java:87)
at org.openqa.selenium.remote.ProtocolHandshake.createSession(ProtocolHandshake.java:343)
at org.openqa.selenium.remote.ProtocolHandshake.createSession(ProtocolHandshake.java:159)
at org.openqa.selenium.remote.HttpCommandExecutor.execute(HttpCommandExecutor.java:142)
at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:637)
... 6 more
Caused by: java.net.ConnectException: Connection refused: connect
at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
at java.net.DualStackPlainSocketImpl.socketConnect(Unknown Source)
at java.net.AbstractPlainSocketImpl.doConnect(Unknown Source)
at java.net.AbstractPlainSocketImpl.connectToAddress(Unknown Source)
at java.net.AbstractPlainSocketImpl.connect(Unknown Source)
at java.net.PlainSocketImpl.connect(Unknown Source)
at java.net.SocksSocketImpl.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at org.apache.http.conn.socket.PlainConnectionSocketFactory.connectSocket(PlainConnectionSocketFactory.java:75)
at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:142)
... 21 more
>Jul 21, 2017 12:15:30 AM org.openqa.grid.selenium.proxy.DefaultRemoteProxy onEvent
INFO: Marking the node http: //192.xx.xx.xx:5566 as down: cannot reach the node for 2 tries
Jul 21, 2017 12:16:30 AM org.openqa.grid.selenium.proxy.DefaultRemoteProxy onEvent
INFO: Unregistering the node http: //192.xx.xx.xx:5566 because it's been down for 60077 milliseconds
Jul 21, 2017 12:16:30 AM org.openqa.grid.internal.Registry removeIfPresent
WARNING: Cleaning up stale test sessions on the unregistered node http: //192.xx.xx.xx:5566
Jul 21, 2017 12:16:34 AM org.openqa.grid.internal.utils.SelfRegisteringRemote registerToHub
INFO: Registering the node to the hub: http: //localhost:4444/grid/register
Jul 21, 2017 12:16:34 AM org.openqa.grid.internal.Registry add
INFO: Registered a node http: //192.xx.xx.xx:5566
Jul 21, 2017 12:16:34 AM org.openqa.grid.internal.utils.SelfRegisteringRemote registerToHub
INFO: The node is registered to the hub and ready to use
Jul 21, 2017 12:16:46 AM org.openqa.grid.selenium.proxy.DefaultRemoteProxy onEvent
INFO: Marking the node http: //192.xx.xx.xx:5566 as down: cannot reach the node for 2 tries
Your code that starts the node has issues. Please fix it as below.
The method nodeConfig() doesn't inject in a server into the SelfRegisteringRemote.
Here's how it should look like:
RegistrationRequest req = RegistrationRequest.build(gridNodeConfig);
SelfRegisteringRemote remote = new SelfRegisteringRemote(req);
remote.setRemoteServer(new SeleniumServer(gridNodeConfig));
remote.startRemoteServer();
remote.startRegistrationProcess();
Also please change your RemoteWebDriver instantiation code to as below
WebDriver driver = new RemoteWebDriver(new URL("http://" + gridHubConfig.host + ":" + gridHubConfig.port + "/wd/hub"), capability);
Notice that we are connecting to the gridHubConfig host and its port and not that of the node (which is what your code was doing).
Once you fix these issues, your code should work fine and you should see an embedded Grid spun off via your code.