Grid unable to connect to node - selenium

Question

I am getting below error when i am running my selenium code. Can someone help me how to overcome this issue:
Tests run: 1, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 129.633 sec <<< FAILURE!
GoogleTest(gridtest.GridTest) Time elapsed: 128.291 sec <<< FAILURE!
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: '3.6.0', revision: '6fbf3ec767', time: '2017-09-27T15:28:36.4Z'
System info: host: 'XXXXXX', ip: 'XXXXXX', os.name: 'Linux', os.arch: 'amd64', os.version: '2.6.32-696.23.1.el6.x86_64', java.version: '1.8.0_77'
Driver info: driver.version: RemoteWebDriver
at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:607)
at org.openqa.selenium.remote.RemoteWebDriver.startSession(RemoteWebDriver.java:217)
at org.openqa.selenium.remote.RemoteWebDriver.<init>(RemoteWebDriver.java:140)
at org.openqa.selenium.remote.RemoteWebDriver.<init>(RemoteWebDriver.java:153)
at gridtest.GridTest.GoogleTest(GridTest.java:48)
**Caused by: org.apache.http.conn.ConnectTimeoutException: Connect to xxx.xxx.xxx.xxx:4444 [xxx.xxx.xxx.xxx/yyy.yyy.yyy.yyy, xxx.xxx.xxx.xxx/yyy.yyy.yyy.yyy] failed: Connection timed out**
at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:157)
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:138)
at org.openqa.selenium.remote.internal.ApacheHttpClient.execute(ApacheHttpClient.java:86)
at org.openqa.selenium.remote.ProtocolHandshake.createSession(ProtocolHandshake.java:337)
at org.openqa.selenium.remote.ProtocolHandshake.createSession(ProtocolHandshake.java:136)
at org.openqa.selenium.remote.HttpCommandExecutor.execute(HttpCommandExecutor.java:142)
at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:586)
... 38 more
Caused by: java.net.ConnectException: Connection timed out
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:589)
at org.apache.http.conn.socket.PlainConnectionSocketFactory.connectSocket(PlainConnectionSocketFactory.java:75)
at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:142)
... 53 more
Following is my Grid and node configuration.
I have my Jenkins with Selenium plug-in installed. So my hub is started and running in my Jenkins machine.
Host: xxx.xxx.xxx.xxx
Port: 4444
Now from my Node machine i started selenium server standalone with role as node and registred the bun
C:\Temp>java -jar selenium-server-standalone-3.12.0.jar -role node -hub http://xxx.xxx.xxx.xxx:4444/grid/register -port 17946
Once the node is started i can see in node console that the node is registered to Grid.
And also in Jenkins Selenium Grid i can see node connected in Registered Remote Components.
In Selenium Grid configuration also i configured the above port with chrome and started node in Nodes matching configuration.
Below is my simple code:
System.out.println("I am in test");
DesiredCapabilities capabilities = DesiredCapabilities.firefox();
// say you use the redhat5 label to indicate RHEL5 and the amd64 label to specify the architecture
//capabilities.setCapability("jenkins.label","RHEL6");
//capabilities.setCapability("jenkins.label","redhat5 && amd64");
// Say you want a specific node to thread your request, just specify the node name (it must be running a selenium configuration though)
//capabilities.setCapability("jenkins.nodeName","(master)");
//capabilities.setPlatform(Platform.WINDOWS);
//System.setProperty("webdriver.chrome.driver", "Drivers"+File.separator+"chromedriver.exe");
//System.setProperty("webdriver.chrome.driver", "C:\\chromedriver\\chromedriver.exe");
System.out.println("I am after setting chromedriver path ");
remoteWD = new RemoteWebDriver(new URL("http://xxx.xxx.xxx.xxx:4444/wd/hub"), capabilities);
//remoteWD = new ChromeDriver();
System.out.println("I am after RMD");
remoteWD.get("http://www.google.com");
WebElement element = remoteWD.findElement(By.name("q"));
element.sendKeys("Selenium WebDriver");
element.submit();
Thread.sleep(10000);
System.out.println(remoteWD.getTitle());
remoteWD.quit();

Answer 1

The timeout issue is with the remoteWebDriver which is defaulted to 60 seconds.
Here are the correct settings of it (my example is in C# but it should be the same for you in Java:
var timeout = TimeSpan.FromHours(1);
var driver = new RemoteWebDriver(new Uri(node), new BrowserFactory().Create().ToCapabilities(), timeout);
I've taken it from a full solution I've done documented in this article:
https://www.tikalk.com/posts/2018/05/02/establishment-of-a-docker-and-chrome-based-selenium-grid-for-web-application-tests/