liyunzhang_intel created SPARK-20466:
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Summary: HadoopRDD#addLocalConfiguration throws NPE
Key: SPARK-20466
URL: https://issues.apache.org/jira/browse/SPARK-20466
Project: Spark
Issue Type: Bug
Components: YARN
Affects Versions: 2.0.2
Reporter: liyunzhang_intel
in spark2.0.2, it throws NPE
{code}
17/04/23 08:19:55 ERROR executor.Executor: Exception in task 439.0 in stage
16.0 (TID 986)$
java.lang.NullPointerException$
^Iat org.apache.spark.rdd.HadoopRDD$.addLocalConfiguration(HadoopRDD.scala:373)$
^Iat org.apache.spark.rdd.HadoopRDD$$anon$1.<init>(HadoopRDD.scala:243)$
^Iat org.apache.spark.rdd.HadoopRDD.compute(HadoopRDD.scala:208)$
^Iat org.apache.spark.rdd.HadoopRDD.compute(HadoopRDD.scala:101)$
^Iat org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:319)$
^Iat org.apache.spark.rdd.RDD.iterator(RDD.scala:283)$
^Iat org.apache.spark.rdd.MapPartitionsRDD.compute(MapPartitionsRDD.scala:38)$
^Iat org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:319)$
^Iat org.apache.spark.rdd.RDD.iterator(RDD.scala:283)$
^Iat org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:70)$
^Iat org.apache.spark.scheduler.Task.run(Task.scala:86)$
^Iat org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:274)$
^Iat
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)$
^Iat
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)$
^Iat java.lang.Thread.run(Thread.java:745)$
{code}
suggestion to add some code to avoid NPE
{code}
/** Add Hadoop configuration specific to a single partition and attempt. */
def addLocalConfiguration(jobTrackerId: String, jobId: Int, splitId: Int,
attemptId: Int,
conf: JobConf) {
val jobID = new JobID(jobTrackerId, jobId)
val taId = new TaskAttemptID(new TaskID(jobID, TaskType.MAP, splitId),
attemptId)
if ( conf != null){
conf.set("mapred.tip.id", taId.getTaskID.toString)
conf.set("mapred.task.id", taId.toString)
conf.setBoolean("mapred.task.is.map", true)
conf.setInt("mapred.task.partition", splitId)
conf.set("mapred.job.id", jobID.toString)
}
}
{code}
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