Using MarkLogic Content Pump (mlcp)

By default, the document URIs use the value in the first column. For example, if your input data looks like the following:

first,last
george,washington
betsy,ross

Then importing this data with no URI related options creates two documents with name corresponding to the “first” value. The URI will be “george” and “betsy”.

Use -uri_id to choose a different column or -generate_uri to have MarkLogic Server automatically generate a unique URI for each document. For example, the following command creates the documents “washington” and “ross”:

# Windows users, see Modifying the Example Commands for Windows
$ mlcp.sh ... -mode local -input_file_path /space/mlcp/data \
    -input_file_type delimited_text -uri_id last

Note that URIs generated with -generate_uri are only guaranteed to be unique across your import operation. For details, see Default Document URI Construction.

You can further tailor the URIs using -output_uri_prefix and -output_uri_suffix. These options apply even when you use -generate_uri. For details, see Controlling Database URIs During Ingestion.

If your URI id’s are not unique, you can overwrite one document in your input set with another. Importing documents with non-unique URI id’s from multiple threads can also cause deadlocks.