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10-14-2019 06:24 AM
Hi,
I am trying to connect to Neo4j from Spark using neo4j-spark-connector. I am facing an authentication issue when I try to connect to the Neo4j "org.neo4j.driver.v1.exceptions.AuthenticationException: Unsupported authentication token, scheme='none' only allowed when auth is disabled: { scheme='none' }" I have checked and the credentials I am passing are correct. Not sure why is it failing now.
import org.neo4j.spark._
import org.apache.spark._
import org.graphframes._
import org.apache.spark.sql.SparkSession
import org.neo4j.driver.v1.GraphDatabase
import org.neo4j.driver.v1.AuthTokens
val config = new SparkConf()
config.set(Neo4jConfig.prefix + "url", "bolt://localhost")
config.set(Neo4jConfig.prefix + "user", "neo4j")
config.set(Neo4jConfig.prefix + "password", "root")
val sparkSession :SparkSession = SparkSession.builder.config(config).getOrCreate()
val neo = Neo4j(sparkSession.sparkContext)
val graphFrame = neo.pattern(("Person","id"),("KNOWS","null"), ("Employee","id")).partitions(3).rows(1000).loadGraphFrame
println("**********Graphframe Vertices Count************")
graphFrame.vertices.count
println("**********Graphframe Edges Count************")
graphFrame.edges.count
val pageRankFrame = graphFrame.pageRank.maxIter(5).run()
val ranked = pageRankFrame.vertices
ranked.printSchema()
val top3 = ranked.orderBy(ranked.col("pagerank").desc).take(3)
Can someone please have a look and let me know the reason for the same?
10-16-2019 02:35 AM
Hi,
One of my deployments is stuck due to this issue. It will be great if someone can have a look at this issue.
Thanks
09-28-2022 05:33 AM
Did you figure this out?
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