This node loads a KNIME data table into Impala. Impala requires imported data to be present in the HDFS file system on the Impala server, therefore this node first copies the data onto the Impala server. You can use the HDFS Connection node to establish a connection to the HDFS file system. The data is then loaded into a Impala table and the uploaded file is deleted.
Additionally the data can be partitioned by selecting one or more compatible columns (e.g. integer or string). The node relies on Impala's dynamic partitioning.
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Please note that this is only about NodePit. We do not provide general support for KNIME — please use the KNIME forums instead.