ERROR Python Script node:number Execute failed: org/knime/core/data/util/memory/ExternalProcessMemoryWatchdog

[martrix]

Hello!

I’ve noticed that this error is fresh, maybe from the last 2 weeks:

Python ExternalProcessMemoryWatchdog error

Hi, I use several Python Script nodes in my workflow. They were working perfectly just a week ago but now are giving me this error: ERROR Python Script 3:673:0:1010 Execute failed: org/knime/core/data/util/memory/ExternalProcessMemoryWatchdog [image] If I go into the python script and only run the first few lines with “Run selected lines” (just reading the input tables and variables) it runs indefinitely. If I cancel it gives the error “There is no active python session in progress”. …

Error on Python Script (ExternalProcessMemoryWatchdog)

Hello! I’m having an error message whenever I try to execute any Python Script node. Message: org/knime/core/data/util/memory/ExternalProcessMemoryWatchdog [image] Does anyone have any idea how to solve this problem? It is a script that I’ve used hundred of times in the past months. In other peoples devices, the workflow/nodes execute perfectly. I tried to uninstall Knime and install it again, but it didn’t work. knime.ini file is configured to use a maximum of 4GB RAM: [image] Thanks in a…

The Python node isn't working. What is happening? Help!

I made the same configuration on a colleague’s machine with less memory than my laptop, and it works on his. [image] [image] I’ve already tried configuring it this way, and it still doesn’t work. [image] It doesn’t even run a simple Hello World.

Was the Python Integration v3.5.2 update released around this last 2 week?

I am also having the problem and I was able to test the following:

1. KNIME AP v5.3.1 + Python v3.5.2 = this error
2. KNIME AP v5.3.2 + Python v3.5.2 = no error at all — it just works!

I have already edited the knime.ini and I have a 40GB RAM computer running KNIME, the same computer for both setup 1 and 2, so the memory is almost certainly not the problem.
1 is installed, 2 is running from the portable version.
Earlier today, 1 was also running on a portable version and had the same error.
So the problem is not whether it’s portable or installed.
I’ve tried several enviroments as well.
I’ve lost my whole Friday trying to troubleshoot this.

I have to use KNIME AP v5.3.1 because the KNIME Hub server is on this version
Knowing that, how can I revert my Python Integration to v5.3.1?
I can’t find a simple way on the software itself.

Thank you.

@carstenhaubold I saw that you commented on a previous topic, here is one more with some other details for your analysis. Thank you!
@ScottF if you want some more details I can provide. Just let me know.

[carstenhaubold]

Hi @martrix,

I first saw your message in Python ExternalProcessMemoryWatchdog error so I replied there. Please see the instructions in my comment there to downgrade the Python Integration to a working state. Sorry for the hassle!

[martrix]

Thank you, @carstenhaubold
I’ve justed downgraded the Python Integration to v5.3.1 and ran the flow again.
No error and it’s working again!