I had installed the 4.3 version and it was getting worse and worse in efficiency during two days. I have installed 4.5 to see if it could improve. I have a two flows in the same workflow with just about 50 nodes of grouping, combining columns, filtering, pivoting, nothing special. If I reset the nodes the whole workflow runs in about a minute, not more. Once finished if I just try to click on a node knime begins to consume 70% CPU and doesn’t open the node for configuration until 15-20 seconds have passed Intel i7 series 8, 16GB ram, 6GB reserved for Knime memory. Any ideas? Gonzalo

Internal ticket ID: AP-17326 Summary: JSON Path node slow/freezes Fix version(s): 5.4.0 Other related topic(s): [image] JSON Path very slow KNIME Analytics Platform I am reading a JSON file and then using JSON path, but it takes forever to open the configuration window, I literally have to wait 10 minutes between adding each path. The file is 500mb in size, is this too big? I have also set the Java heap space to 12gb. Any other ideas for this? Thanks [image] extremely slow when use json node KNIME Analytics Platform Hi, It seems the most slow time when I use KNIME roll_eyes I want to analysis the KNIME embedded recommendations file(locate at knime-workspace/.metadata/knime/community_recommendations.json), but do not know why it is slow even when I have two nodes…I also try JSON to Table node, it is also slow. BTW, I use the latest KNIME version v3.6.0.v201807100937, the original file is too big to upload. [04] WARN KNIMEApplication$4 Potential deadlock in AWT Event Queue detected. Full t…

Knime processing power blocking at every single step after finished flow

KNIME Analytics Platform

forum September 17, 2025, 4:53pm 10

Internal ticket ID: AP-17326
Summary: JSON Path node slow/freezes
Fix version(s): 5.4.0
Other related topic(s):