{"id":945,"date":"2013-01-02T10:34:04","date_gmt":"2013-01-02T10:34:04","guid":{"rendered":"http:\/\/vskills.in\/certification\/tutorial\/?p=945"},"modified":"2024-04-12T14:13:16","modified_gmt":"2024-04-12T08:43:16","slug":"configuring-selenium-grid-3","status":"publish","type":"page","link":"https:\/\/www.vskills.in\/certification\/tutorial\/configuring-selenium-grid-3\/","title":{"rendered":"Certified Selenium Professional | Selenium Grid Configuring"},"content":{"rendered":"\n
\"Configuring<\/a><\/figure><\/div>\n\n\n

Configuring selenium grid<\/strong><\/h3>\n

Under configuring selenium grid<\/strong>, the node can be configured in 2 different ways; one is by specifying command line parameters, the other is by specifying a json file.<\/p>\n

Configuring the nodes by command line<\/strong><\/h4>\n

By default, this starts 11 browsers : 5 Firefox, 5 Chrome, 1 Internet Explorer. The maximum number of concurrent tests is set to 5 by default. To change this and other browser settings, you can pass in parameters to each -browser switch (each switch represents a node based on your parameters). If you use the -browser parameter, the default browsers will be ignored and only what you specify command line will be used.<\/p>\n

-<\/span>browser browserName<\/span>=<\/span>firefox<\/span>,<\/span>version<\/span>=<\/span>3.6<\/span>,<\/span>maxInstances<\/span>=<\/span>5<\/span>,<\/span>platform<\/span>=<\/span>LINUX<\/span><\/pre>\n
This setting starts 5 Firefox 3.6 nodes on a linux machine.<\/p>\n
If your remote machine has multiple versions of Firefox you\u2019d like to use, you can map the location of each binary to a particular version on the same machine:<\/p>\n
-<\/span>browser browserName<\/span>=<\/span>firefox<\/span>,<\/span>version<\/span>=<\/span>3.6<\/span>,<\/span>firefox_binary<\/span>=<\/span>\/home\/<\/span>myhomedir<\/span>\/<\/span>firefox36<\/span>\/<\/span>firefox<\/span>,<\/span>maxInstances<\/span>=<\/span>3<\/span>,<\/span>platform<\/span>=<\/span>LINUX <\/span>-<\/span>browser browserName<\/span>=<\/span>firefox<\/span>,<\/span>version<\/span>=<\/span>4<\/span>,<\/span>firefox_binary<\/span>=<\/span>\/home\/<\/span>myhomedir<\/span>\/<\/span>firefox4<\/span>\/<\/span>firefox<\/span>,<\/span>maxInstances<\/span>=<\/span>4<\/span>,<\/span>platform<\/span>=<\/span>LINUX<\/span><\/pre>\n
Tip:<\/strong> If you need to provide a space somewhere in your browser parameters, then surround the parameters with quotation marks:<\/p>\n
-<\/span>browser <\/span>\u201c<\/span>browserName<\/span>=<\/span>firefox<\/span>,<\/span>version<\/span>=<\/span>3.6<\/span>,<\/span>firefox_binary<\/span>=<\/span>c<\/span>:\\<\/span>Program<\/span>Files<\/span>\\<\/span>firefox <\/span>,<\/span>maxInstances<\/span>=<\/span>3<\/span>,<\/span> platform<\/span>=<\/span>WINDOWS<\/span>\u201d\n\n<\/span><\/pre>\n
Selenium Grid Main Configuration File<\/strong><\/h4>\n
Once you have Selenium Grid up and running, you might want to tweak some of its settings.<\/p>\n
Most of Selenium Grid configuration<\/strong> is defined in the grid_configuration.yml<\/code>file located at the root of Selenium Grid installation directory on the machine where the Hub is running<\/em>.<\/p>\n
This file is in the human-friendly YAML format, which should be mostly self explanatory.<\/p>\n
Defining New Environments<\/strong><\/h4>\n
Selenium Grid<\/strong> provides predefined environments for standard browsers to get you started, however, chances are that very soon, you will want to define your own.<\/p>\n
To define a new environment, edit the grid_configuration.yml<\/code>file located at the root of Selenium Grid installation directory on the machine where the Hub is running<\/em>:<\/p>\n
Search for a section like:<\/p>\n
hub:\n   port: 4444\n   # ...\n   environments:\n       - name:    \"Firefox on Windows\"\n         browser: \"*firefox\"\n       - name:    \"Firefox on OS X\"\n         browser: \"*firefox\"\n       - name:    \"IE on Windows\"\n         browser: \"*iehta\"<\/code><\/pre>\n
An environment is basically a binding between an arbitrary string you pick (the name) and a real Selenium browser string that will be used to start the session on the actual remote control (*firefox<\/code>, safari<\/code>, *iexplore<\/code>, *hta<\/code>, \u2026). To add a new one, just add a new entry in the list, starting with a dash (-<\/code>) and keeping the same indentation level. For instance, to add a new environment called \u201cShinny New Environment\u201d that will use the *safari<\/code>mode type:<\/p>\n
  hub:\n     port: 4444\n     # ...\n     environments:\n         - name:    \"Firefox on Windows\"\n           browser: \"*firefox\"\n         - name:    \"Firefox on OS X\"\n           browser: \"*firefox\"\n         - name:    \"IE on Windows\"\n           browser: \"*iehta\"\n         - name:    \"Shinny New Environment\"\n           browser: \"*iehta\"<\/code><\/pre>\n
Changing Hub\u2019s Port<\/strong><\/h4>\n
By default, Selenium Grid Hub<\/strong> is started on port 4444, which is also Selenium RC default port (this is on purpose, since, from the test\u2019s point of view, the Hub looks just like a regular RC).<\/p>\n
You can change the Hub port by editing the grid_configuration.yml<\/code>file, which is located at the root of Selenium Grid installation directory on the machine where the Hub is running<\/em>:<\/p>\n
Search for a section like:<\/p>\n
hub:\n   port: 4444\t   <\/code><\/pre>\n
And change 4444<\/code>to the port number of your liking. For instance:<\/p>\n
hub:\n     port: 1234<\/code><\/pre>\n
Changing Hub Self-Healing Parameters<\/strong><\/h4>\n
remoteControlPollingIntervalInSeconds<\/code>and sessionMaxIdleTimeInSeconds<\/code>configuration parameters can be set in grid_configuration.yml<\/code>. For instance:<\/p>\n
 hub:\n    port: 4444\n    remoteControlPollingIntervalInSeconds: 180\n    sessionMaxIdleTimeInSeconds: 300\n    environments:\n        - name:    \"Firefox on Windows\"\n          browser: \"*firefox\"<\/code><\/pre>\n