toDebugString

Class: matlab.compiler.mlspark.RDD
Namespace: matlab.compiler.mlspark

Obtain a description of an RDD and its recursive dependencies for debugging

Syntax

str = toDebugString(obj)


Description

str = toDebugString(obj) gets a description of input RDD and its recursive dependencies for debugging purposes.

Input Arguments

obj — Input RDD

RDD object

An input RDD, specified as an RDD object.

Output Arguments

str — Character vector with a description of an RDD

character vector

Description of an RDD and its recursive dependencies for debugging purposes, returned as a character vector.

Data Types: char

Examples

Obtain Description of an RDD

Use the toDebugString method to get a description of an RDD and its recursive dependencies.

%% Connect to Spark
sparkProp = containers.Map({'spark.executor.cores'}, {'1'});
conf = matlab.compiler.mlspark.SparkConf('AppName','myApp', ...
                        'Master','local[1]','SparkProperties',sparkProp);
sc = matlab.compiler.mlspark.SparkContext(conf);

%% toDebugString
myFile = sc.textFile('airlinesmall.csv');
myFile.persist();
myFile.toDebugString()

Version History

Introduced in R2016b