Local Filesystem

Configuration

./LakeXpress config create -a credentials.json --lxdb_auth_id lxdb_mssql \
        --source_db_auth_id source_postgres \
        --output_dir /data/exports

Relative paths

A relative --output_dir (for example ./exports) is resolved against the directory where you run config create, and the absolute path is saved in the sync configuration. This requires LakeXpress 0.4.9 or later: earlier versions resolved relative paths from the FastBCP engine directory, so use an absolute path with them.

Directory Structure

output_dir/
└── schema_name/
    └── table_name/
        ├── part-00000.parquet
        ├── part-00001.parquet
        └── ...

With --sub_path staging/temp:

exports/
└── staging/
    └── temp/
        └── schema_name/
            └── table_name/
                ├── part-00000.parquet
                └── ...

Permissions

The user running LakeXpress needs write access to the output directory, sufficient disk space, and the ability to create subdirectories.

Troubleshooting

Problem	Solution
Permission denied	chmod 755 /path/to/output_dir. Ensure parent directories exist.