Zalenium 1 Requests Waiting For A Slot To Be Free

Style 1: Done in binary pen. Shading will cost 10 Leaftlets more. 30 Leaflets Splits will cost 80Leaflets Style 2: Done in default brush, Shading is free 60Leaflets The split will cost 150 Leaflets Custom/ Redesign: Paca customs are available with leaflets, They will have a base price of 100 can go up to 200 depending on the complexity. selenium-developer-activity Issue 6397 in selenium: 1 requests waiting for a slot to be free. Despite available sessions.

Selenium 1 Requests Waiting For A Slot To Be Free To Play
Selenium 1 Requests Waiting For A Slot To Be Free Play

'timeout' is node configuration parameter using which you can set timeout for selenium grid node browser session. If you set '-timeout 20000' and run test, If node browser not receiving any command and stay ideal for 20 seconds then it will be closed automatically by -timeout parameter. That means it tells node browser -> 'wait max 20 seconds to receive any command else close browser and clear session'. Lets take practical example to understand 'timeout' clearly.

Earlier we learnt usage of 'maxInstances' in THIS POST and 'maxSession' in THIS POST to configure selenium grid node so i hope you are well aware about usage of both these parameters as we are going to use them in this example too. Now let's create two selenium software automation test cases as bellow and then try to run them without timeout and then with timeout parameter.

fillingForm.java
Calc.java
testng.xml

2 Software Automation Test cases : fillingForm.java and Calc.java
driver.quit(); is commented from both software automation test cases so webdriver will not close driver instance.
Both tests are configured to run in parallel using selenium grid 2.
Our aim is to run both software automation test cases in parallel in 2 browsers and also it should run max 2 browsers at a time so we will launch node with -maxSession 2.

First of all we will launch node without timeout parameter and execute above test on it to check node browser status on completion of test.

Start grid hub as described in THIS POST.
Open command prompt and navigate to D: drive in command prompt where selenium server jar file, IEDriver server file and chromedriver file is stored.
Start grid node with -maxSession 2 to restrict 2 max browsers only at a time. timeout is not used. Launch node using bellow given command.

Now run above test from testng.xml file. It will launch 2 browsers to run both software automation test cases parallel. Other 2 pending requests on node will wait for current session to be closed as bellow.

But here you know, We have commented driver.quit(); from both test cases so tests will be executed successfully on both driver instances but driver instances will not closed. It will remain as it is for 5 minutes (node default timeout period) so remaining 2 tests will stay in queue for 5 minutes as no slot is free on node to run test. When default timeout time reached, both current driver instances will be closed and then remaining two requests will start execution by launching new driver instances on node.

Running test with timeout for node

To reset node timeout, We can use timeout parameter when launching node. You can set your desired timeout for node so that it can start next test if driver instance stay steady for given time. Let's configure node with timeout to check how it works in above scenario.

Restart grid hub.
Restart grid node using bellow command. Here we have used -timeout 20000 (20 seconds) at the end of command. You can set timeout as per your requirement.

Note : Meaning of -timeout 20000 : During test execution if browser will remain steady for 20 seconds, Node will close it immediately after 20 seconds.

Now run above tests from testng.xml file. Both software automation tests will be executed, then browsers will stay steady for 20 seconds and then both of them will be closed automatically and new requests will start execution on free slots.

This way, node timeout can help you to close browser instance if it is stuck during test execution.

For this document, we provide example test located in our Zalenium Github Repository.

Zalenium’s main goal is to allow anyone to have a disposable and flexible Selenium Grid infrastructure. A Selenium Grid that scales up and down dynamically with this solution based on docker-selenium to run your tests is started in seconds. When you need a different browser, Zalenium is easily integrated with the CrossBrowserTesting platform, so you can perform tests on a wide variety of OS/Device/Browser combinations, all from one test.

Let’s walk through getting setup.

Selenium 1 requests waiting for a slot to be free play

1. Start by installing docker, a standalone container image that includes everything needed to run an application: code, runtime, system tools, system libraries and settings.

2. Use docker to pull selenium and zalenium using the commands:

3. Start Zalenium with the command:

4. Navigate to http://localhost:4444/grid/dashboard to view your Zalenium Dashboard.

5. Create an empty file called /zalenium/test/selenium_test.py with the following content:

5. Now you are ready to run your test using the command:

You’ll need to use your Username and Authkey to run your tests on CrossBrowserTesting. To get yours, sign up for a free trial or purchase a plan.

Using the Local Connection

If you would like to test behind your firewall or access non-public sites, you can use our local connection tool through our Zalenium integration. Simply add the following parameter to your configuration:

Conclusion

Selenium 1 Requests Waiting For A Slot To Be Free To Play

As you can probably make out from our test, we visit a simple login page and display the title.

Selenium 1 Requests Waiting For A Slot To Be Free Play

We kept it short and sweet for our purposes, but there is so much more you can do with Zalenium! Being built on top of Selenium means the sky is the limit as far as what you can do. If you have any questions or concerns, feel free to get in touch.