Github user vanzin commented on a diff in the pull request: https://github.com/apache/spark/pull/11746#discussion_r73768915 --- Diff: core/src/main/scala/org/apache/spark/deploy/worker/DriverRunner.scala --- @@ -78,49 +80,53 @@ private[deploy] class DriverRunner( private[worker] def start() = { new Thread("DriverRunner for " + driverId) { override def run() { + var shutdownHook: AnyRef = null try { - val driverDir = createWorkingDirectory() - val localJarFilename = downloadUserJar(driverDir) - - def substituteVariables(argument: String): String = argument match { - case "{{WORKER_URL}}" => workerUrl - case "{{USER_JAR}}" => localJarFilename - case other => other + shutdownHook = ShutdownHookManager.addShutdownHook { () => + logInfo(s"Worker shutting down, killing driver $driverId") + kill() } - // TODO: If we add ability to submit multiple jars they should also be added here - val builder = CommandUtils.buildProcessBuilder(driverDesc.command, securityManager, - driverDesc.mem, sparkHome.getAbsolutePath, substituteVariables) - launchDriver(builder, driverDir, driverDesc.supervise) - } - catch { - case e: Exception => finalException = Some(e) - } + // prepare driver jars and launch driver + val exitCode = prepareAndLaunchDriver() - val state = - if (killed) { - DriverState.KILLED - } else if (finalException.isDefined) { - DriverState.ERROR + // set final state depending on if forcibly killed and process exit code + finalState = if (exitCode == 0) { + Some(DriverState.FINISHED) + } else if (killed) { + Some(DriverState.KILLED) } else { - finalExitCode match { - case Some(0) => DriverState.FINISHED - case _ => DriverState.FAILED - } + Some(DriverState.FAILED) } + } + catch { + case e: Exception => + kill() + finalState = Some(DriverState.ERROR) + finalException = Some(e) + } + finally { + if (shutdownHook != null) ShutdownHookManager.removeShutdownHook(shutdownHook) + } - finalState = Some(state) - - worker.send(DriverStateChanged(driverId, state, finalException)) + // notify worker of final driver state, possible exception + worker.send(DriverStateChanged(driverId, finalState.get, finalException)) } }.start() } /** Terminate this driver (or prevent it from ever starting if not yet started) */ - private[worker] def kill() { + private[worker] def kill(): Unit = { + logInfo("Killing driver process!") + killed = true synchronized { - process.foreach(_.destroy()) - killed = true + process.foreach(p => { --- End diff -- nit: `.foreach { p =>`
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