Hi,
Recently, manually running tests has been taking a very long time to start. Specifically, I click “Play” in any test, the job progress opens, the spinning circle appears, but then sometimes nothing happens for 10-20 seconds. The log viewer remains blank. Has anyone else experienced this or know of a possible solution?
Katalon Studio is currently running version 10.4.2.
please make sure that you are using the latest version of the webdriver by updating it
Any errors ? can you share the logs?
Source: Execution Settings in Katalon Studio
Verify your execution settings are optimized:
Go to Project > Settings > Execution
Check Delay between actions is set to 0 (unless intentionally configured)
Ensure Default wait for element timeout is reasonable (default: 30 seconds)
Disable unnecessary features like Smart Wait if not needed
Check if your system is resource-constrained:
Monitor CPU, RAM, and disk usage during test startup
Close unnecessary applications
Ensure sufficient free disk space
Try clearing Katalon’s cache:
Close Katalon Studio
Delete the
.katalon
cache folder in your project directory
Restart Katalon Studio and retry
Source: View and Customize Execution Log
Verify logging isn’t causing delays:
Check
Include > Config > log.properties
file
Ensure logging level is not set to TRACE (which can slow startup)
In Katalon Studio, go to Help > Error Log to open the .log file.
In the .log file, you may find some important diagnostics.
Hi, first of all, thank you so much for the quick and numerous replies. I’ll try to address everything in one answer and hope I don’t forget anything.
@depapp: The web drivers are up to date.
@dineshh: No, there are no error messages, at least not in the log viewer.
Solution 1: It’s already configured that way. The slow startup issue has only been occurring for a while. I can’t say for sure whether it coincides with the last update or started before or after.
Solution 2: Resource usage and available memory are not possible causes. The processor is running at 5-20% during the test, RAM is only 41% utilized, and over 25% of the SSD storage is still free.
Solution 3: I can’t find the .katalon folder in my project directory.
Solution 4: I’ll have to take a closer look.
@kazurayam: The logs only contain entries indicating that a Jira plugin is online, “Reloaded plugins successfully,” and “Finished preloading.”
In case that some problem resides in the layer of Eclipse Platform upon which Katalon Studio application runs, then you would see what you wrote:
… I click “Play” in any test, the job progress opens, the spinning circle appears, but then sometimes nothing happens for 10-20 seconds.
How about removing the Katalon Studio installation from your PC once; and reinstall it cleanly? That may change something unknown for you. Cleanup & reinstall the product woud be the only remedy you can try.
I am not very much surprised to hear 10-20 seconds of idleness of Katalon Studio. It happens.
I have ever done a performance mesurement of the various versions of Katalon Studio where I found Katalon Studio v10 runs far slower than v9. See my report as follows:
and this:
It would worth trying to run Katalon Studio on another machine; preferably Mac, not Windows.
