Run H2O Driverless AI Experiment node fails

Hello everyone

I’m running the KNIME and H2o DriverlessAI integration nodes

I can upload the dataset through the Upload Dataset to H20 node.

By following the web UI of my DriverlessAI account, I can confirm that the database has been successfully loaded.

The problem occurs when trying to run an experiment.

im runing KNIME Analytics platform 4.2.3

When executing the Run Driverlessai Experiment node, I verify that an experiment is started in the H20, and even ended, only that an error occurs when trying to end the execution of the node:

java.nio.file.FileSystemException: C:\Users\myuser\AppData\Local\Temp\pipeline.mojo:
The file is already being used by another process

at sun.nio.fs.WindowsException.translateToIOException(
at sun.nio.fs.WindowsException.rethrowAsIOException(
at sun.nio.fs.WindowsException.rethrowAsIOException(
at sun.nio.fs.WindowsFileSystemProvider.implDelete(
at sun.nio.fs.AbstractFileSystemProvider.delete(
at java.nio.file.Files.delete(
at org.knime.ext.h2o.dai.nodes.connect.setupexperiment.H2ODAISetupExperimentNodeModel.performExecute(
at org.knime.js.core.node.AbstractWizardNodeModel.execute(
at org.knime.core.node.NodeModel.executeModel(
at org.knime.core.node.Node.invokeFullyNodeModelExecute(
at org.knime.core.node.Node.execute(
at org.knime.core.node.workflow.NativeNodeContainer.performExecuteNode(
at org.knime.core.node.exec.LocalNodeExecutionJob.mainExecute(
at org.knime.core.node.workflow.NodeExecutionJob.internalRun(
at org.knime.core.util.ThreadUtils$RunnableWithContextImpl.runWithContext(
at org.knime.core.util.ThreadUtils$
at java.util.concurrent.Executors$
at org.knime.core.util.ThreadPool$
at org.knime.core.util.ThreadPool$

2020-11-09 09:12:44,086 : WARN : KNIME-Worker-12-Run H2O Driverless AI Experiment 0:26 : : WriteFileStoreHandler : Run H2O Driverless AI Experiment : 0:26 : Disposing file store “e78a8ae5-509a-4cd4-8fa8-c79b34479354 (Run H2O Driverless AI Experiment 0:26: C:\Users\myuser\AppData\Local\Temp\KNIMETEMP\knime_09_H2O_Driverle92074\fs-Run_H_0-26-92077)” - folder not or only partially deleted

1 Like

Hi @natanaeldgsantos,

thanks for reporting this! We looked into the issue and fixed it. Please go to File -> Update KNIME and update to the new version of the H2O Driverless AI Integration.

Let us know if you encounter further problems.


P.S. Welcome to the forum! :slight_smile:


Thank you for the support @SimonS . i will try again


This topic was automatically closed 7 days after the last reply. New replies are no longer allowed.