Github user lins05 commented on a diff in the pull request: https://github.com/apache/spark/pull/15377#discussion_r82139291 --- Diff: core/src/main/scala/org/apache/spark/util/Utils.scala --- @@ -2474,25 +2474,36 @@ private[spark] class CallerContext( val context = "SPARK_" + from + appIdStr + appAttemptIdStr + jobIdStr + stageIdStr + stageAttemptIdStr + taskIdStr + taskAttemptNumberStr + var callerContextSupported : Option[Boolean] = _ + /** * Set up the caller context [[context]] by invoking Hadoop CallerContext API of * [[org.apache.hadoop.ipc.CallerContext]], which was added in hadoop 2.8. */ def setCurrentContext(): Boolean = { - var succeed = false - try { - // scalastyle:off classforname - val callerContext = Class.forName("org.apache.hadoop.ipc.CallerContext") - val Builder = Class.forName("org.apache.hadoop.ipc.CallerContext$Builder") - // scalastyle:on classforname - val builderInst = Builder.getConstructor(classOf[String]).newInstance(context) - val hdfsContext = Builder.getMethod("build").invoke(builderInst) - callerContext.getMethod("setCurrent", callerContext).invoke(null, hdfsContext) - succeed = true - } catch { - case NonFatal(e) => logInfo("Fail to set Spark caller context", e) + callerContextSupported match { + case Some(false) => + false + case _ => + var succeed = false --- End diff -- done
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