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Working with Hive and Parquet data
Hunk's Data Preprocessors
When Hunk initializes a search for non-HDFS input data, it uses the information contained in Hunk's FileSplitGenerator class to determine how to split data for parallel processing.
Hunk's default FileSplitGenerator contains the same data split logic defined in Hadoop's FileInputFormat This means that it works for any data format that can be read by Hadoop's InputFormat implementation (which has same split logic as FileInputFormat).
Hunk's default FileSplitGenerator does not work for Hive or Parquet files, so Hunk now also ships with HiveSplitGenerator and ParquetSplitGenerator for Hive and Parquet. Any custom Hive files with file-based split logic (such as files created with Hadoop FileOutputFormat and its subclasses) works with the HiveSplitGenerator. If you have custom Hive file formats that do not use file-based data split logic, you can implement a custom SplitGenerator that uses your split logic.
Parquet files created by all tools (including Hive) work with (and only with) ParquetSplitGenerator.
- To configure Hunk to work with Hive, see Configure Hive connectivity.
- To configure Hunk to work with Parquet tables, see Configure Parquet tables.
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This documentation applies to the following versions of Hunk®(Legacy): 6.1, 6.1.1, 6.1.2, 6.1.3, 6.2, 6.2.1, 6.2.2, 6.2.3, 6.2.4, 6.2.5, 6.2.6, 6.2.7, 6.2.8, 6.2.9, 6.2.10, 6.2.11, 6.2.12, 6.2.13, 6.3.0, 6.3.1, 6.3.2, 6.3.3, 6.3.4, 6.3.5, 6.3.6, 6.3.7, 6.3.8, 6.3.9, 6.3.10, 6.3.11, 6.3.12, 6.3.13, 6.4.0, 6.4.1, 6.4.2, 6.4.3, 6.4.4, 6.4.5, 6.4.6, 6.4.7, 6.4.8, 6.4.9, 6.4.10, 6.4.11
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