Hello prayeratnight,
can you please give some more detail about the big data environment you are using e.g. Hortonworks, Cloudera or a cloud environment and also the Hive version and HDFS protocol.
Thanks
Tobias
the repository looks very outdated and is no longer actively maintained (last update 2018). I did not get the metastore up and running with the docker-compose-hive file from the repository until switching the version of the hive images to 2.3.2. After that everything seems to work and I can’t reproduce your problem.
Make sure the /temp directory exists or the create missing folder option is enabled in the DB Loader. If this does not help, try to enable the debug log level in the Preferences > KNIME > KNIME GUI.