Скачать или смотреть How to Open Two Chromes in Remote Debugging Mode for Selenium Control Efficiently

Discover the simple steps to run multiple Chrome instances in `remote debugging mode` for Selenium and overcome connection issues.
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Opening Two Chromes in Remote Debugging Mode with Selenium

Managing multiple instances of Chrome in remote debugging mode can be a challenging task, especially when you're using Selenium for automation. If you ever tried to control two Chrome browsers at the same time, you might have hit a snag when attempting to connect the second instance. In this post, we'll break down the steps to open two Chrome browsers in remote debugging mode and successfully connect them to Selenium.

The Problem

When trying to run multiple instances of Chrome remotely, users often find that while they can get the first instance working, connecting to a second does not work as expected. The typical error encountered is:

[[See Video to Reveal this Text or Code Snippet]]

This often happens because both instances are trying to use the same user data directory and there's no unique profile associated with the second browser.

The Solution

To run two separate instances of Chrome for Selenium debugging, each instance needs its own profile. Here's how to do that step by step:

Step 1: Create Unique Profiles

Create Folders: You need to create a separate folder for each Chrome profile that you will use. For example:

E:\chromeprofile\28180

E:\chromeprofile\28280

Creating these folders will ensure that each Chrome instance has its own user data.

Step 2: Launch Chrome with Different Ports

Open two command prompts and execute the following commands to launch the two Chrome instances:

First Chrome Instance:

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Second Chrome Instance:

[[See Video to Reveal this Text or Code Snippet]]

By specifying different ports and different user data directories, each browser runs independently, allowing Selenium to connect to them separately.

Step 3: Connect Selenium to the Chrome Instances

Once both Chrome instances are up and running, it's time to connect Selenium to each one.

For the first instance:

[[See Video to Reveal this Text or Code Snippet]]

For the second instance:

[[See Video to Reveal this Text or Code Snippet]]

Conclusion

By following these steps, you can successfully control two different instances of Chrome using Selenium without running into connectivity issues. Remember, the key is to set up distinct user data directories and different debugging ports for each Chrome instance.

Now you're all set to take full advantage of Selenium's capabilities with multiple Chrome browsers! Happy debugging!