java.lang.UnsupportedOperationException: empty collection

GitHub | kristofa | 1 year ago
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    java.lang.UnsupportedOperationException: empty collection

    GitHub | 1 year ago | kristofa
    java.lang.UnsupportedOperationException: empty collection
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    Reducing potentially empty RDD's

    Stack Overflow | 1 year ago | Daniel Imberman
    java.lang.UnsupportedOperationException: empty collection
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    GitHub comment 1159#203546740

    GitHub | 11 months ago | hectcastro
    java.lang.UnsupportedOperationException: empty collection
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    Protect against empty collection exception in SummaryJob

    GitHub | 4 months ago | hectcastro
    java.lang.UnsupportedOperationException: empty collection

    Root Cause Analysis

    1. java.lang.UnsupportedOperationException

      empty collection

      at org.apache.spark.rdd.RDD$$anonfun$reduce$1$$anonfun$apply$36.apply()
    2. Spark
      RDD$$anonfun$reduce$1$$anonfun$apply$36.apply
      1. org.apache.spark.rdd.RDD$$anonfun$reduce$1$$anonfun$apply$36.apply(RDD.scala:1009)
      2. org.apache.spark.rdd.RDD$$anonfun$reduce$1$$anonfun$apply$36.apply(RDD.scala:1009)
      2 frames
    3. Scala
      Option.getOrElse
      1. scala.Option.getOrElse(Option.scala:121)
      1 frame
    4. Spark
      RDD.reduce
      1. org.apache.spark.rdd.RDD$$anonfun$reduce$1.apply(RDD.scala:1009)
      2. org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:147)
      3. org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:108)
      4. org.apache.spark.rdd.RDD.withScope(RDD.scala:310)
      5. org.apache.spark.rdd.RDD.reduce(RDD.scala:989)
      5 frames
    5. io.zipkin.dependencies
      ZipkinDependenciesJob.main
      1. io.zipkin.dependencies.spark.cassandra.ZipkinDependenciesJob$.run(ZipkinDependenciesJob.scala:110)
      2. io.zipkin.dependencies.spark.cassandra.ZipkinDependenciesJob$.main(ZipkinDependenciesJob.scala:71)
      3. io.zipkin.dependencies.spark.cassandra.ZipkinDependenciesJob.main(ZipkinDependenciesJob.scala)
      3 frames