Configuration Files
These tables describe the parameters and the values you need to specify before you run the Intraflow Match job.
Parameter | Description |
---|---|
pb.bdq.input.type | Input file type. The values can be: TEXT, ORC or PARQUET. |
pb.bdq.inputfile.path | The path where you have placed the input file on HDFS. For example, /user/hduser/sampledata/intramatch/ input/Intraflow_Input.txt. |
textinputformat.record.delimiter | File record delimiter used in the text type input file. For example, LINUX, MACINTOSH, or WINDOWS |
pb.bdq.inputformat.field.delimiter | Field or column delimiter used in the input file, such as comma (,) or tab. |
pb.bdq.inputformat.text.qualifier | Text qualifiers, if any, in the columns or fields of the input file. |
pb.bdq.inputformat.file.header | Headers used in the input file. Example: name, firstname, lastname, matchkey, middlename, and recordid. |
pb.bdq.inputformat.skip.firstrow | If the first row is to be skipped from processing. The values can be True or False, where True indicates skip. |
Parameter | Description |
---|---|
pb.bdq.job.type | This is a constant value that defines the job. The value for this job is: IntraMatch. |
pb.bdq.job.name | Name of the job. Default is IntraMatchSample. |
pb.bdq.match.rule | Json String for defining match rule. It specifies details, such as match rule hierarchy, matching method, method to score blank data in a field, scoring method, and algorithm to determine if the values in the field name matched. |
pb.bdq.match.groupby | Name of the column to be used for grouping records in the match queue. |
pb.bdq.reduce.count | Number of reducers to be run. Default is 1. |
pb.bdq.match.express.column | Name of the Express Match Column. If the content of this column matches between the suspect and the candidate, no further processing is needed to determine if the suspect and the candidates are duplicates. |
pb.bdq.match.keygenerator.json | Json string for defining match key generator rule, such as whether to use
expressMatchKey, name of the matchKeyField, and algorithm to be used. Note: This is an
optional detail.
|
pb.bdq.match.unique.collectnumber.zero | A true value assigns collection number 0 to unique records. |
Specifies the MapReduce configuration parameters |
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Use this file to customize MapReduce parameters, such as mapreduce.map.memory.mb, mapreduce.reduce.memory.mb and mapreduce.map.speculative, as needed for your job. |
Parameter | Description |
---|---|
pb.bdq.output.type | Specify if the output is in: TEXT, ORC, or PARQUET format. |
outputfile.path | The path where you want the output file to be generated on HDFS. For example, /user/hduser/sampledata/intramatch/output. |
pb.bdq.outputformat.field.delimiter | Field or column delimiter in the output file, such as comma (,) or tab. |
pb.bdq.output.overwrite | For a true value, the output folder is overwritten every time job is run. |
pb.bdq.outputformat.headerfile.create | Specify true, if the output file needs to have a header. |
pb.bdq.job.print.counters.console | If the counters are printed on console or in a file. True indicates counters are printed on the console |
pb.bdq.job.counter.file.path | Path and the name of the file to which the counters are to be printed. You need to specify this if value in the pb.bdq.job.print.counters.console is false. |
Properties of Parquet file | Â |
parquet.compression | The compression algorithm used to compress pages. It is one of these:
UNCOMPRESSED, SNAPPY,
GZIP, or LZO. Default is UNCOMPRESSED. |
parquet.block.size | The size of a row group being buffered in memory. Larger values improve the I/O when reading but consume more memory when writing. Default size is 134217728 bytes (= 128 * 1024 * 1024) |
parquet.page.size | Page constitutes block and is the smallest unit that must be read fully to access a
single record. Default size is 1048576 bytes (= 1 * 1024 * 1024)
Note: A very small page
size results in deterioration of compression.
|
parquet.dictionary.page.size | Default size is 1048576 bytes (= 1 * 1024 * 1024) |
parquet.enable.dictionary | The boolean value (True or False) to enable or disable dictionary encoding. Default is True |
parquet.validation | Default boolean value is False. |
parquet.writer.version | Specifies the version of writer. It should be PARQUET_1_0 or PARQUET_2_0. Default is PARQUET_1_0. |
parquet.writer.max-padding | Default to no padding, 0% of the row group size |
parquet.page.size.check.estimate | Default boolean value is True |
parquet.page.size.row.check.min | Default is 100 |
parquet.page.size.row.check.max | Default is 10000 |