From 3fb53c0298761ba227890525ae79ce4ec6300deb Mon Sep 17 00:00:00 2001 From: Sean Owen Date: Thu, 26 Feb 2015 14:08:56 -0800 Subject: [PATCH] SPARK-4300 [CORE] Race condition during SparkWorker shutdown Close appender saving stdout/stderr before destroying process to avoid exception on reading closed input stream. (This also removes a redundant `waitFor()` although it was harmless) CC tdas since I think you wrote this method. Author: Sean Owen Closes #4787 from srowen/SPARK-4300 and squashes the following commits: e0cdabf [Sean Owen] Close appender saving stdout/stderr before destroying process to avoid exception on reading closed input stream --- .../scala/org/apache/spark/deploy/worker/ExecutorRunner.scala | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/core/src/main/scala/org/apache/spark/deploy/worker/ExecutorRunner.scala b/core/src/main/scala/org/apache/spark/deploy/worker/ExecutorRunner.scala index 6653aca0a0..066d46c447 100644 --- a/core/src/main/scala/org/apache/spark/deploy/worker/ExecutorRunner.scala +++ b/core/src/main/scala/org/apache/spark/deploy/worker/ExecutorRunner.scala @@ -85,14 +85,13 @@ private[spark] class ExecutorRunner( var exitCode: Option[Int] = None if (process != null) { logInfo("Killing process!") - process.destroy() - process.waitFor() if (stdoutAppender != null) { stdoutAppender.stop() } if (stderrAppender != null) { stderrAppender.stop() } + process.destroy() exitCode = Some(process.waitFor()) } worker ! ExecutorStateChanged(appId, execId, state, message, exitCode)