java.lang.NullPointerException

Talend Open Integration Solution | lei ju | 11 months ago
tip
Your exception is missing from the Samebug knowledge base.
Here are the best solutions we found on the Internet.
Click on the to mark the helpful solution and get rewards for you help.
  1. 0

    Talend Open Integration Solution | 11 months ago | lei ju
    java.lang.NullPointerException

    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at org.apache.spark.storage.BlockManagerMaster.removeRdd()
    2. Spark
      RDD.unpersist
      1. org.apache.spark.storage.BlockManagerMaster.removeRdd(BlockManagerMaster.scala:104)
      2. org.apache.spark.SparkContext.unpersistRDD(SparkContext.scala:1623)
      3. org.apache.spark.rdd.RDD.unpersist(RDD.scala:203)
      3 frames
    3. Spark Project Streaming
      DStream$$anonfun$clearMetadata$3.apply
      1. org.apache.spark.streaming.dstream.DStream$$anonfun$clearMetadata$3.apply(DStream.scala:469)
      2. org.apache.spark.streaming.dstream.DStream$$anonfun$clearMetadata$3.apply(DStream.scala:468)
      2 frames
    4. Scala
      HashMap$$anon$2.foreach
      1. scala.collection.mutable.HashMap$$anon$2$$anonfun$foreach$3.apply(HashMap.scala:107)
      2. scala.collection.mutable.HashMap$$anon$2$$anonfun$foreach$3.apply(HashMap.scala:107)
      3. scala.collection.mutable.HashTable$class.foreachEntry(HashTable.scala:226)
      4. scala.collection.mutable.HashMap.foreachEntry(HashMap.scala:39)
      5. scala.collection.mutable.HashMap$$anon$2.foreach(HashMap.scala:107)
      5 frames
    5. Spark Project Streaming
      DStream$$anonfun$clearMetadata$5.apply
      1. org.apache.spark.streaming.dstream.DStream.clearMetadata(DStream.scala:468)
      2. org.apache.spark.streaming.dstream.DStream$$anonfun$clearMetadata$5.apply(DStream.scala:481)
      3. org.apache.spark.streaming.dstream.DStream$$anonfun$clearMetadata$5.apply(DStream.scala:481)
      3 frames