I was wondering if GraphX API is available in PySpark for Spark 3.0+? I'm not finding any of that sort in official documentation. All the examples are developed with Scala. And Where can I get more updates about it.
Thanks, Darshan
According to the documentation available at http://ampcamp.berkeley.edu/big-data-mini-course/graph-analytics-with-graphx.html:
"The GraphX API is currently only available in Scala but we plan to provide Java and Python bindings in the future."
However, you should look at GraphFrames (https://github.com/graphframes/graphframes), which wraps GraphX algorithms under the DataFrames API and it provides Python interface.
Here is a quick example from https://graphframes.github.io/graphframes/docs/_site/quick-start.html, with slight modification so that it works.
First, start pyspark with the graphframes pkg loaded.
pyspark --packages graphframes:graphframes:0.1.0-spark1.6
python code:
from graphframes import *
# Create a Vertex DataFrame with unique ID column "id"
v = sqlContext.createDataFrame([
("a", "Alice", 34),
("b", "Bob", 36),
("c", "Charlie", 30),
], ["id", "name", "age"])
# Create an Edge DataFrame with "src" and "dst" columns
e = sqlContext.createDataFrame([
("a", "b", "friend"),
("b", "c", "follow"),
("c", "b", "follow"),
], ["src", "dst", "relationship"])
# Create a GraphFrame
g = GraphFrame(v, e)
# Query: Get in-degree of each vertex.
g.inDegrees.show()
# Query: Count the number of "follow" connections in the graph.
g.edges.filter("relationship = 'follow'").count()
# Run PageRank algorithm, and show results.
results = g.pageRank(resetProbability=0.01, maxIter=20)
results.vertices.select("id", "pagerank").show()