Hub Configuration

Table of contents

• Download Hub Extensions
• Hub Configuration
• Hub Launch

Download Hub Extensions

You can find hub extensions at http://search.maven.org

The only required extension for Hub is extension-proxy

Download jar file and put it together with selenium-server-standalone-x.y.z.jar

Hub Configuration

Hub can be configured with json format file.

Here is default HubConfig.json:

{
  "host": null,
  "port": 4444,
  "newSessionWaitTimeout": -1,
  "servlets" : [],
  "prioritizer": null,
  "capabilityMatcher": "org.openqa.grid.internal.utils.DefaultCapabilityMatcher",
  "throwOnCapabilityNotPresent": true,
  "nodePolling": 5000,

  "cleanUpCycle": 5000,
  "timeout": 300000,
  "browserTimeout": 0,
  "maxSession": 5,
  "jettyMaxThreads":-1
}

Modify servlets and capability matcher properties:

...
 "servlets": [
    "io.sterodium.extensions.hub.proxy.HubRequestsProxyingServlet"
  ],
...
  "capabilityMatcher": "io.sterodium.extensions.capability.CustomCapabilityMatcher"
...

Hub Launch

You need to include all hub extensions jars in classpath and point -hubConfig property to your modified hubConfig.

java -cp "selenium-server-standalone-2.48.2.jar:extension-proxy-x.y.z.jar" \
org.openqa.grid.selenium.GridLauncher -role hub -hubConfig hubConfig.json