running fpgrowth -- run method

I get warnings: SparkContext: Requesting executors is only supported in coarse-grained mode ExecutorAllocationManager: Unable to reach the cluster manager to request 2 total executors I get info messages: INFO ContextCleaner: Cleaned accumulator 4 Then my "job" just seems to hang - I don't

help coercing types

I have data that I pull in using a sql context and then I convert to an rdd. The problem is that the type in the rdd is [Any, Iterable[Any]] And I need to have the type RDD[Array[String]] -- convert the Iterable to an Array. Here’s more detail: val zdata = sqlContext.read.parquet("s3://..