issue : Spark Context Livy not working

I am trying to use Spark Context with Livy.
I have tested livy locally successfully with curl and ran livy tests.
But i cannot Execute Spark Context Livy in KNIME,
the execute button is greyed out and never becomes green
regardless of how much I change the configuration.

I also tried Spark context jobserver with the spark-jobserver running in docker
but face other issue with timeout on akka.pattern.AskTimeoutException: Ask timed out on [Actor[…

livy seems much easier to deal with
but I cannot figure out a way to make it green executable in KNIME.

btw I am using KNIME 3.7 latest version

I tried on mac and linux , same issue:

error is :slight_smile: Excluding compile: javax.swing.text.GlyphView::getBreakSpot

Exception in thread “AWT-EventQueue-0” java.lang.IllegalStateException: No node context registered with the current thread

at org.knime.core.node.workflow.NodeContext.removeLastContext(

at org.knime.workbench.ui.wrapper.WrappedNodeDialog.removeNodeContext(

at org.knime.workbench.ui.wrapper.WrappedNodeDialog.lambda$4(

at org.knime.core.node.util.ViewUtils$

at java.awt.event.InvocationEvent.dispatch(

at java.awt.EventQueue.dispatchEventImpl(

at java.awt.EventQueue.access$500(

at java.awt.EventQueue$

at java.awt.EventQueue$

at Method)


at java.awt.EventQueue.dispatchEvent(

at java.awt.EventDispatchThread.pumpOneEventForFilters(

at java.awt.EventDispatchThread.pumpEventsForFilter(

at java.awt.EventDispatchThread.pumpEventsForHierarchy(

at java.awt.EventDispatchThread.pumpEvents(

at java.awt.EventDispatchThread.pumpEvents(


Hi @lefromage,
which RemoteFileSystem Connection do you use with the Livy Context node?
For S3 or Azure BlobStore you need to set a staging area, maybe you missed that?

best regards Mareike

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