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Editorial Team
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Asked: 2026-05-23T08:38:53+00:00

I have selenium grid 2 hub running on one server. I start up another

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I have selenium grid 2 hub running on one server.

I start up another selenium grid 2 webdriver node on another server.

It takes about 4 minutes of refreshing in my browser at http://remotehub.com:4444/grid/console until I can finally see the normal hub console displaying the browser icons.

anyway to speed this up? what is the reason that it’s taking so long?

does it have to do anything with max number of instances on the rc node? How can I change this to run 25 instances on a rc node? does each browser instance require it’s own xvfb display number or can RC handle as much as memory and cpu allows under a single xvfb display?

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  1. Editorial Team

    If you start the server and client on the same machine, do you have the same problem?
    Four minute seems like an unreasonable amount of time for the console to display. I wonder if something is mis-configured on the remote site or they are experiencing other performance-hindering problems.

    I’m starting my server like this:

    java -jar selenium-server-standalone-2.0rc2.jar -role hub

    You can change the max number of instances on a particular node (client) by starting it up like this (note the maxInstance sub-parameter within the -browser parameter).

    java -jar selenium-server-standalone-2.0rc2.jar -role webdriver -hub http://127.0.0.1:4444/grid/register -port 5556 -browser browserName=firefox,version=3.6,platform=windows,maxInstances=2 -browser "browserName=internet explorer,version=8,platform=windows,maxInstances=2"

    This starts a node that has 2 Firefox and 2 IE browsers ready to receive tests, up to a maximum of five tests.

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