Data Preparation: known issues and known limitations

We encourage you to consult the JIRA bug tracking tool for a full list of open issues:

Limitation	Description
Streams Runner on Java 8 [TDP-7330]	The Streams Runner component does not support Java 11. It must be launched with Java 8 instead.
HDFS Export [TDP-7329]	When using Talend Data Preparation in a Big Data context, an HDFS export that contains one of the following functions will fail: Magic Fill Extract full name parts Extract values by semantic types Coalesce columns Convert character width Concatenate columns Sum, multiply, mean, median, max, min on multiple columns Change date format on the whole table Format numbers on the whole table Search and replace on the whole table
Failed exports on empty preparations	When using the Export button in a dataset that you just opened from the dataset list, without applying any preparation function, exports will fail regardless of the output configuration. As a workaround, apply at least one preparation step to the dataset in order to create a preparation and export it to the format of your choice.

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