java.io.IOException: HADOOP_HOME or hadoop.home.dir are not set.

Stack Overflow | jgp | 5 months ago
  1. 0

    Apache Spark Server installation requires Hadoop? Not automatically installed?

    Stack Overflow | 5 months ago | jgp
    java.io.IOException: HADOOP_HOME or hadoop.home.dir are not set.
  2. 0

    sample spark CSV and JSON program not running in windows

    Stack Overflow | 2 months ago | subho
    java.io.IOException: Could not locate executable null\bin\winutils.exe in the Hadoop binaries.
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Root Cause Analysis

  1. java.io.IOException

    HADOOP_HOME or hadoop.home.dir are not set.

    at org.apache.hadoop.util.Shell.checkHadoopHome()
  2. Hadoop
    StringUtils.<clinit>
    1. org.apache.hadoop.util.Shell.checkHadoopHome(Shell.java:225)
    2. org.apache.hadoop.util.Shell.<clinit>(Shell.java:250)
    3. org.apache.hadoop.util.StringUtils.<clinit>(StringUtils.java:76)
    3 frames
  3. Hadoop
    FileInputFormat.setInputPaths
    1. org.apache.hadoop.mapreduce.lib.input.FileInputFormat.setInputPaths(FileInputFormat.java:447)
    1 frame
  4. org.apache.spark
    JSONRelation$$anonfun$4$$anonfun$apply$1.apply
    1. org.apache.spark.sql.execution.datasources.json.JSONRelation.org$apache$spark$sql$execution$datasources$json$JSONRelation$$createBaseRdd(JSONRelation.scala:98)
    2. org.apache.spark.sql.execution.datasources.json.JSONRelation$$anonfun$4$$anonfun$apply$1.apply(JSONRelation.scala:115)
    3. org.apache.spark.sql.execution.datasources.json.JSONRelation$$anonfun$4$$anonfun$apply$1.apply(JSONRelation.scala:115)
    3 frames
  5. Scala
    Option.getOrElse
    1. scala.Option.getOrElse(Option.scala:120)
    1 frame
  6. org.apache.spark
    JSONRelation$$anonfun$4.apply
    1. org.apache.spark.sql.execution.datasources.json.JSONRelation$$anonfun$4.apply(JSONRelation.scala:115)
    2. org.apache.spark.sql.execution.datasources.json.JSONRelation$$anonfun$4.apply(JSONRelation.scala:109)
    2 frames
  7. Scala
    Option.getOrElse
    1. scala.Option.getOrElse(Option.scala:120)
    1 frame