Github user CodingCat commented on a diff in the pull request:
https://github.com/apache/spark/pull/101#discussion_r10548392
--- Diff: core/src/main/scala/org/apache/spark/rdd/HadoopRDD.scala ---
@@ -165,12 +174,29 @@ class HadoopRDD[K, V](
override def compute(theSplit: Partition, context: TaskContext) = {
val iter = new NextIterator[(K, V)] {
+
+ private def localizeConfiguration(conf: JobConf) {
+ //generate job id
+ val stageId = context.stageId
+ val dummyJobTrackerID = new
SimpleDateFormat("yyyyMMddHHmm").format(createTime)
+ val jobId = new JobID(dummyJobTrackerID, stageId)
+ val splitID = theSplit.index
+ val attemptId = (context.attemptId % Int.MaxValue).toInt
+ val taId = new TaskAttemptID(new TaskID(jobId, true, splitID),
attemptId)
+
+ 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)
+ }
+
val split = theSplit.asInstanceOf[HadoopPartition]
logInfo("Input split: " + split.inputSplit)
var reader: RecordReader[K, V] = null
-
val jobConf = getJobConf()
val inputFormat = getInputFormat(jobConf)
+ localizeConfiguration(jobConf)
--- End diff --
I mean adding some configurations which are local to the certain task....
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