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python_sample.py
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python_sample.py
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#
# Copyright 2017 ABSA Group Limited
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
"""
This is simplest example of how to track a lineage with Spline.
Go to sample directory:
cd sample
Make sure "spline.properties" file is properly configured for e.g. Mongo:
vi src/main/resources/spline.properties
Build project Sample with Shade profile to create Fat-JAR containing all needed dependencies:
mvn package -P spark-2.3,shade
Execute pyspark with Fat-JAR on class path:
pyspark --jars 'target/spline-sample-0.3.7-SNAPSHOT.jar'
Execute rest of this file inside PySpark.
"""
# Enable Spline tracking:
sc._jvm.za.co.absa.spline.core\
.SparkLineageInitializer.enableLineageTracking(spark._jsparkSession)
# Execute a job:
spark.read\
.option("header", "true")\
.option("inferschema", "true")\
.csv("data/input/batch/wikidata.csv")\
.write\
.mode('overwrite')\
.csv("data/output/batch/python-sample.csv")
# Review lineage on the UI or inside MongoDB.