Spark Mongo connector, MongoShardedPartitioner does not work
问题 For testing purposes, I have configured a 4-node cluster, each of them has a Spark Worker and a MongoDB Shard. These are the details: Four Debian 9 servers (named visa0, visa1, visa2, visa3) Spark(v2.4.0) cluster on 4 nodes (visa1: master, visa0..3: slaves) MongoDB (v3.2.11) sharded cluster con 4 nodes ( config server replica set on visa1..3, mongos on visa1, shard servers: visa0..3 ) I'm using MongoDB Spark connector installed with "spark-shell --packages org.mongodb.spark:mongo-spark