unexpected behaviour using parallel execution

kaymankayman Member Posts: 662 Unicorn
edited December 2018 in Help

Hi guys,


Not sure if it's a bug or by nature of design, but I noticed that after updating some of my outdated loop operators my whole workflow started to fail.


In specific none of my python scripts were running anymore, except if I included a breakpoint in the loop operator. When disabling the parallel execution option all worked again as before. So basically it looks like the process is not waiting for a return of the python operator and just skips it in parallel mode. Is this expected behaviour?


Took me some time and pulled hairs before I figured it out so hopefully other people can learn from this experience :-)


  • Options
    Thomas_OttThomas_Ott RapidMiner Certified Analyst, RapidMiner Certified Expert, Member Posts: 1,761 Unicorn

    Thanks. I don't know enough about your PY script but I would think in general these scripts would be difficult to parallelize within RM. However, I'm glad you found the solution by toggling off the parallel execution parameter. 

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