DGST Configuration

Configuration File

The default configuration file of DGST is /conf/conf.properties.

Core Parameters

The core parameters required by DGST are：

Parameter Name	Default	Meaning
alphabet.num	128	Size of alphabet
div.start	2	Initial count window size in sub-tree partitioning
div.step	4	Count window step size in sub-tree partitioning
root.max.count	2000000	Maximum sub-tree size (i.e., maximum S-prefix frequency)
fs.extra.len	1024	Tail length of input split
first.buffer	10	Number of symbols in the first element of the local LCP-Range array
lcp.range	128	Size of range in the LCP-Range structure
grouping.method	bfhg	Sub-tree construction task allocation strategy
spark.partitions	48	Computation parallelism on Spark
input.dir	hdfs://master:9000/input	The input data path on HDFS or local file system
output.location	hdfs://master:9000/output	The output data path on HDFS or local file system
working.dir	hdfs://master:9000/tmp	The tempoaray data path on HDFS or local file system