Knime server workflow not running

KNIME Server
1

Hi,

I am using KNIME version 4.0.1 (Desktop and server) at work. Using Python version 3 in local. I created a knime workflow and it runs smoothly in my local space. However, in the server, I am having problems running it.

Couple of errors I noticed in different workflows:
For one, the workflow starts with DB connectors, table selector and reader. I using the HIVE JDBC connection.

Another workflow uses a python script (web hdfs package) to write the table to hive and i get an error when deploying in server. (Use successfully in the past before).
Screenshot of the error.

53%20PM
53%20PM2062×114 41.7 KB

The python script nodes generally work fine local and is able to start kernel.

Please note I was able to run similar workflows in the previous server version/ able to run it successfully in the local space.
Appreciate you help. (Also emailed support on the first issue but no response yet)

2

Hi @shalinirs,

First: I have tried to find your already opened ticket on our Support System, as I didn’t succeeded, can you please send me the ticket number per private message? I will merge the open tickets. Thanks in advance.

How was your server upgraded, following the steps of the upgrade guide, merging the ini files included?

I am asking because the error message shows that the knime executor can’t access the python installation on the server. There might be a wrong path configured.

Best,
Michael

3

Hi Michael,

We resolved the Python error. Looks like the KNIME server version had Python version 2.7. Python script node had an option to choose Python 2/ 3. Choosing Python 2 worked.

I will update soon on the first issue.

Thanks,
Shalini

2 Likes