Hi experts, I got an error during unpersist RDD. Any ideas?
java.util.concurrent.TimeoutException: Futures timed out after [30 seconds] at scala.concurrent.impl.Promise$DefaultPromise.ready(Promise.scala:219) at scala.concurrent.impl.Promise$DefaultPromise.result(Promise.scala:223) at scala.concurrent.Await$$anonfun$result$1.apply(package.scala:107) at scala.concurrent.BlockContext$DefaultBlockContext$.blockOn(BlockContext.scala:53) at scala.concurrent.Await$.result(package.scala:107) at org.apache.spark.storage.BlockManagerMaster.removeRdd(BlockManagerMaster.scala:103) at org.apache.spark.SparkContext.unpersistRDD(SparkContext.scala:951) at org.apache.spark.rdd.RDD.unpersist(RDD.scala:168)
