Kite launches more browsers than specified

[ckmoga]

I am running headless chrome with the following setups:

"tupleSize": 25

java -Dwebdriver.chrome.driver=./chromedriver.exe -jar ../selenium.jar -role node -maxSession 25 -port 6001 -host localhost -hub http://localhost:4444/grid/register -browser browserName=chrome,version=91,platform=WINDOWS,maxInstances=25 --debug

What I noticed is when launched, Kite creates
125 Chrome sessions

When I change DEFAULT_MAXINSTANCES = 6 in org.webrtc.kite.config.client.Capability, the number of instances sessions jumps to 150
Changing DEFAULT_MAXINSTANCES to a lower value has no impact.

What I am expecting 25 sessions, one for each student, nothing more. What am I missing? This is a massive resource drain and causes 100% spike when more users are added.

[A-nguyenv]

Hello,
Changing DEFAULT_MAXINSTANCES shouldn't impact anything, as you are already running your grid through the command java -Dwebdriver.chrome.driver=./chromedriver.exe -jar ../selenium.jar -role node -maxSession 25 -port 6001 -host localhost -hub http://localhost:4444/grid/register -browser browserName=chrome,version=91,platform=WINDOWS,maxInstances=25 --debug.
It is only used to automate the launch of the grid, which is not available unless you implemented it on your side.
I tried to reproduce your issue but 25 browsers are opening, as expected.
Can you confirm from the grid console available from http://localhost:4444/grid/console that it is indeed 25 sessions?

[ckmoga]

Hi @A-nguyenv I did verify; visually you will see 25 browsers but there are far more processes:

Microsoft Windows [Version 10.0.19043.1083]
(c) Microsoft Corporation. All rights reserved.

C:\Users<Username>tasklist | find /I /C "chrome.exe"
125

You see the number of chrome processes is 125, which is 5x25.

This number is 0 when no tests are running, so it cannot come from something else. When I change DEFAULT_MAXINSTANCES = 6,
this number jumps to 150.

[novak-dev]

@ckmoga Hey, I am not sure if this is the problem but I see in Client.java there is a variable called count and its default value is set to 5. That might be causing some kind of unintended multiplication.