YARN-4252. Log container-executor invocation details when exit code is 
non-zero. Contributed by Sidharta Seethana.


Project: http://git-wip-us.apache.org/repos/asf/hadoop/repo
Commit: http://git-wip-us.apache.org/repos/asf/hadoop/commit/fb9c1519
Tree: http://git-wip-us.apache.org/repos/asf/hadoop/tree/fb9c1519
Diff: http://git-wip-us.apache.org/repos/asf/hadoop/diff/fb9c1519

Branch: refs/heads/HDFS-7966
Commit: fb9c1519b30cf8113cf9b8deed9b9901db5e9693
Parents: 8d59293
Author: Varun Vasudev <vvasu...@apache.org>
Authored: Wed Oct 14 15:18:08 2015 +0530
Committer: Varun Vasudev <vvasu...@apache.org>
Committed: Wed Oct 14 15:18:08 2015 +0530

----------------------------------------------------------------------
 hadoop-yarn-project/CHANGES.txt                          |  3 +++
 .../linux/privileged/PrivilegedOperationExecutor.java    | 11 ++++++++---
 2 files changed, 11 insertions(+), 3 deletions(-)
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http://git-wip-us.apache.org/repos/asf/hadoop/blob/fb9c1519/hadoop-yarn-project/CHANGES.txt
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diff --git a/hadoop-yarn-project/CHANGES.txt b/hadoop-yarn-project/CHANGES.txt
index 9932543..2aac433 100644
--- a/hadoop-yarn-project/CHANGES.txt
+++ b/hadoop-yarn-project/CHANGES.txt
@@ -501,6 +501,9 @@ Release 2.8.0 - UNRELEASED
     YARN-3943. Use separate threshold configurations for disk-full detection
     and disk-not-full detection. (Zhihai Xu via jlowe)
 
+    YARN-4252. Log container-executor invocation details when exit code is 
non-zero.
+    (Sidharta Seethana via vvasudev)
+
   OPTIMIZATIONS
 
     YARN-3339. TestDockerContainerExecutor should pull a single image and not

http://git-wip-us.apache.org/repos/asf/hadoop/blob/fb9c1519/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/privileged/PrivilegedOperationExecutor.java
----------------------------------------------------------------------
diff --git 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/privileged/PrivilegedOperationExecutor.java
 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/privileged/PrivilegedOperationExecutor.java
index 1d71938..4b1bb9f 100644
--- 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/privileged/PrivilegedOperationExecutor.java
+++ 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/privileged/PrivilegedOperationExecutor.java
@@ -155,12 +155,17 @@ public class PrivilegedOperationExecutor {
         LOG.debug(exec.getOutput());
       }
     } catch (ExitCodeException e) {
-      String logLine = new StringBuffer("Shell execution returned exit code: ")
+      StringBuilder logBuilder = new StringBuilder("Shell execution returned "
+          + "exit code: ")
           .append(exec.getExitCode())
           .append(". Privileged Execution Operation Output: ")
-          .append(System.lineSeparator()).append(exec.getOutput()).toString();
+          .append(System.lineSeparator()).append(exec.getOutput());
 
-      LOG.warn(logLine);
+      logBuilder.append("Full command array for failed execution: ")
+          .append(System.lineSeparator());
+      logBuilder.append(Arrays.toString(fullCommandArray));
+
+      LOG.warn(logBuilder.toString());
 
       //stderr from shell executor seems to be stuffed into the exception
       //'message' - so, we have to extract it and set it as the error out

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