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From vino...@apache.org
Subject hadoop git commit: MAPREDUCE-6454. Fixed MapReduce to modify HADOOP_CLASSPATH to have distributed cache files so that child processes running hadoop scripts can access these files. Contributed by Junping Du.
Date Fri, 21 Aug 2015 00:40:29 GMT
Repository: hadoop
Updated Branches:
  refs/heads/branch-2.6 537d7a624 -> d4b86e6f4


MAPREDUCE-6454. Fixed MapReduce to modify HADOOP_CLASSPATH to have distributed cache files
so that child processes running hadoop scripts can access these files. Contributed by Junping
Du.

(cherry picked from commit 9da81a395584cb1dbfdee012222fd4de53522681)


Project: http://git-wip-us.apache.org/repos/asf/hadoop/repo
Commit: http://git-wip-us.apache.org/repos/asf/hadoop/commit/d4b86e6f
Tree: http://git-wip-us.apache.org/repos/asf/hadoop/tree/d4b86e6f
Diff: http://git-wip-us.apache.org/repos/asf/hadoop/diff/d4b86e6f

Branch: refs/heads/branch-2.6
Commit: d4b86e6f403edc6cdd687f978e3abff8752faa34
Parents: 537d7a6
Author: Vinod Kumar Vavilapalli <vinodkv@apache.org>
Authored: Thu Aug 20 17:35:24 2015 -0700
Committer: Vinod Kumar Vavilapalli <vinodkv@apache.org>
Committed: Thu Aug 20 17:40:15 2015 -0700

----------------------------------------------------------------------
 hadoop-mapreduce-project/CHANGES.txt            |  4 ++
 .../v2/app/job/impl/TaskAttemptImpl.java        | 15 ++++-
 .../apache/hadoop/mapreduce/v2/util/MRApps.java | 41 ++++++++++---
 .../hadoop/mapreduce/v2/util/TestMRApps.java    | 63 ++++++++++++++------
 .../hadoop/yarn/api/ApplicationConstants.java   |  5 ++
 5 files changed, 98 insertions(+), 30 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/hadoop/blob/d4b86e6f/hadoop-mapreduce-project/CHANGES.txt
----------------------------------------------------------------------
diff --git a/hadoop-mapreduce-project/CHANGES.txt b/hadoop-mapreduce-project/CHANGES.txt
index 8fcbcca..3e6d22c 100644
--- a/hadoop-mapreduce-project/CHANGES.txt
+++ b/hadoop-mapreduce-project/CHANGES.txt
@@ -12,6 +12,10 @@ Release 2.6.2 - UNRELEASED
 
   BUG FIXES
 
+    MAPREDUCE-6454. Fixed MapReduce to modify HADOOP_CLASSPATH to have distributed
+    cache files so that child processes running hadoop scripts can access these
+    files. (Junping Du via vinodkv)
+
 Release 2.6.1 - UNRELEASED
 
   INCOMPATIBLE CHANGES

http://git-wip-us.apache.org/repos/asf/hadoop/blob/d4b86e6f/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/job/impl/TaskAttemptImpl.java
----------------------------------------------------------------------
diff --git a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/job/impl/TaskAttemptImpl.java
b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/job/impl/TaskAttemptImpl.java
index 5a8a658..53d400d 100644
--- a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/job/impl/TaskAttemptImpl.java
+++ b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/job/impl/TaskAttemptImpl.java
@@ -172,6 +172,7 @@ public abstract class TaskAttemptImpl implements
   private static AtomicBoolean initialClasspathFlag = new AtomicBoolean();
   private static String initialClasspath = null;
   private static String initialAppClasspath = null;
+  private static String initialHadoopClasspath = null;
   private static Object commonContainerSpecLock = new Object();
   private static ContainerLaunchContext commonContainerSpec = null;
   private static final Object classpathLock = new Object();
@@ -620,6 +621,7 @@ public abstract class TaskAttemptImpl implements
       MRApps.setClasspath(env, conf);
       initialClasspath = env.get(Environment.CLASSPATH.name());
       initialAppClasspath = env.get(Environment.APP_CLASSPATH.name());
+      initialHadoopClasspath = env.get(Environment.HADOOP_CLASSPATH.name());
       initialClasspathFlag.set(true);
       return initialClasspath;
     }
@@ -753,14 +755,21 @@ public abstract class TaskAttemptImpl implements
       }
 
       MRApps.addToEnvironment(
-          environment,  
-          Environment.CLASSPATH.name(), 
+          environment,
+          Environment.CLASSPATH.name(),
           getInitialClasspath(conf), conf);
 
+      if (initialHadoopClasspath != null) {
+        MRApps.addToEnvironment(
+            environment,
+            Environment.HADOOP_CLASSPATH.name(),
+            initialHadoopClasspath, conf);
+      }
+
       if (initialAppClasspath != null) {
         MRApps.addToEnvironment(
             environment,  
-            Environment.APP_CLASSPATH.name(), 
+            Environment.APP_CLASSPATH.name(),
             initialAppClasspath, conf);
       }
     } catch (IOException e) {

http://git-wip-us.apache.org/repos/asf/hadoop/blob/d4b86e6f/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-common/src/main/java/org/apache/hadoop/mapreduce/v2/util/MRApps.java
----------------------------------------------------------------------
diff --git a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-common/src/main/java/org/apache/hadoop/mapreduce/v2/util/MRApps.java
b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-common/src/main/java/org/apache/hadoop/mapreduce/v2/util/MRApps.java
index 07b9427..af62c1c 100644
--- a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-common/src/main/java/org/apache/hadoop/mapreduce/v2/util/MRApps.java
+++ b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-common/src/main/java/org/apache/hadoop/mapreduce/v2/util/MRApps.java
@@ -231,7 +231,7 @@ public class MRApps extends Apps {
     }
     // TODO: Remove duplicates.
   }
-  
+
   @SuppressWarnings("deprecation")
   public static void setClasspath(Map<String, String> environment,
       Configuration conf) throws IOException {
@@ -242,11 +242,30 @@ public class MRApps extends Apps {
       conf.getBoolean(MRJobConfig.MAPREDUCE_JOB_CLASSLOADER, false)
         ? Environment.APP_CLASSPATH.name() : Environment.CLASSPATH.name();
 
+    String hadoopClasspathEnvVar = Environment.HADOOP_CLASSPATH.name();
+
     MRApps.addToEnvironment(environment,
       classpathEnvVar, crossPlatformifyMREnv(conf, Environment.PWD), conf);
+
+    MRApps.addToEnvironment(environment,
+        hadoopClasspathEnvVar, crossPlatformifyMREnv(conf, Environment.PWD),
+        conf);
+
     if (!userClassesTakesPrecedence) {
       MRApps.setMRFrameworkClasspath(environment, conf);
     }
+
+    addClasspathToEnv(environment, classpathEnvVar, conf);
+    addClasspathToEnv(environment, hadoopClasspathEnvVar, conf);
+
+    if (userClassesTakesPrecedence) {
+      MRApps.setMRFrameworkClasspath(environment, conf);
+    }
+  }
+
+  @SuppressWarnings("deprecation")
+  public static void addClasspathToEnv(Map<String, String> environment,
+      String classpathEnvVar, Configuration conf) throws IOException {
     MRApps.addToEnvironment(
         environment,
         classpathEnvVar,
@@ -254,15 +273,21 @@ public class MRApps extends Apps {
     MRApps.addToEnvironment(
         environment,
         classpathEnvVar,
-        MRJobConfig.JOB_JAR + Path.SEPARATOR + "classes" + Path.SEPARATOR, conf);
+        MRJobConfig.JOB_JAR + Path.SEPARATOR + "classes" + Path.SEPARATOR,
+        conf);
+
     MRApps.addToEnvironment(
         environment,
         classpathEnvVar,
-        MRJobConfig.JOB_JAR + Path.SEPARATOR + "lib" + Path.SEPARATOR + "*", conf);
+        MRJobConfig.JOB_JAR + Path.SEPARATOR + "lib" + Path.SEPARATOR + "*",
+        conf);
+
     MRApps.addToEnvironment(
         environment,
         classpathEnvVar,
-        crossPlatformifyMREnv(conf, Environment.PWD) + Path.SEPARATOR + "*", conf);
+        crossPlatformifyMREnv(conf, Environment.PWD) + Path.SEPARATOR + "*",
+        conf);
+
     // a * in the classpath will only find a .jar, so we need to filter out
     // all .jars and add everything else
     addToClasspathIfNotJar(DistributedCache.getFileClassPaths(conf),
@@ -273,11 +298,8 @@ public class MRApps extends Apps {
         DistributedCache.getCacheArchives(conf),
         conf,
         environment, classpathEnvVar);
-    if (userClassesTakesPrecedence) {
-      MRApps.setMRFrameworkClasspath(environment, conf);
-    }
   }
-  
+
   /**
    * Add the paths to the classpath if they are not jars
    * @param paths the paths to add to the classpath
@@ -443,6 +465,7 @@ public class MRApps extends Apps {
     return startCommitFile;
   }
 
+  @SuppressWarnings("deprecation")
   public static void setupDistributedCache( 
       Configuration conf, 
       Map<String, LocalResource> localResources) 
@@ -475,6 +498,7 @@ public class MRApps extends Apps {
    * @param conf
    * @throws java.io.IOException
    */
+  @SuppressWarnings("deprecation")
   public static void setupDistributedCacheLocal(Configuration conf)
       throws IOException {
 
@@ -542,6 +566,7 @@ public class MRApps extends Apps {
   // TODO - Move this to MR!
   // Use TaskDistributedCacheManager.CacheFiles.makeCacheFiles(URI[], 
   // long[], boolean[], Path[], FileType)
+  @SuppressWarnings("deprecation")
   private static void parseDistributedCacheArtifacts(
       Configuration conf,
       Map<String, LocalResource> localResources,

http://git-wip-us.apache.org/repos/asf/hadoop/blob/d4b86e6f/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-common/src/test/java/org/apache/hadoop/mapreduce/v2/util/TestMRApps.java
----------------------------------------------------------------------
diff --git a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-common/src/test/java/org/apache/hadoop/mapreduce/v2/util/TestMRApps.java
b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-common/src/test/java/org/apache/hadoop/mapreduce/v2/util/TestMRApps.java
index 2e77f5e..87473ba 100644
--- a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-common/src/test/java/org/apache/hadoop/mapreduce/v2/util/TestMRApps.java
+++ b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-common/src/test/java/org/apache/hadoop/mapreduce/v2/util/TestMRApps.java
@@ -36,6 +36,8 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.FileSystem;
 import org.apache.hadoop.fs.FilterFileSystem;
@@ -66,7 +68,10 @@ import org.junit.Test;
 
 public class TestMRApps {
   private static File testWorkDir = null;
-  
+
+  private static final Log LOG =
+      LogFactory.getLog(TestMRApps.class);
+
   @BeforeClass
   public static void setupTestDirs() throws IOException {
     testWorkDir = new File("target", TestMRApps.class.getCanonicalName());
@@ -74,14 +79,14 @@ public class TestMRApps {
     testWorkDir.mkdirs();
     testWorkDir = testWorkDir.getAbsoluteFile();
   }
-  
+
   @AfterClass
   public static void cleanupTestDirs() throws IOException {
     if (testWorkDir != null) {
       delete(testWorkDir);
     }
   }
-  
+
   private static void delete(File dir) throws IOException {
     Configuration conf = new Configuration();
     FileSystem fs = FileSystem.getLocal(conf);
@@ -193,9 +198,9 @@ public class TestMRApps {
     Job job = Job.getInstance(conf);
     Map<String, String> environment = new HashMap<String, String>();
     MRApps.setClasspath(environment, job.getConfiguration());
-    assertTrue(environment.get("CLASSPATH").startsWith(
-      ApplicationConstants.Environment.PWD.$$()
-          + ApplicationConstants.CLASS_PATH_SEPARATOR));
+    assertTrue(environment.get(ApplicationConstants.Environment.CLASSPATH.
+        name()).startsWith(ApplicationConstants.Environment.PWD.$$()
+            + ApplicationConstants.CLASS_PATH_SEPARATOR));
     String yarnAppClasspath = job.getConfiguration().get(
         YarnConfiguration.YARN_APPLICATION_CLASSPATH,
         StringUtils.join(",",
@@ -205,8 +210,9 @@ public class TestMRApps {
           yarnAppClasspath.replaceAll(",\\s*",
             ApplicationConstants.CLASS_PATH_SEPARATOR).trim();
     }
-    assertTrue(environment.get("CLASSPATH").contains(yarnAppClasspath));
-    String mrAppClasspath = 
+    assertTrue(environment.get(ApplicationConstants.Environment.
+        CLASSPATH.name()).contains(yarnAppClasspath));
+    String mrAppClasspath =
         job.getConfiguration().get(
             MRJobConfig.MAPREDUCE_APPLICATION_CLASSPATH,
             MRJobConfig.DEFAULT_MAPREDUCE_CROSS_PLATFORM_APPLICATION_CLASSPATH);
@@ -215,7 +221,8 @@ public class TestMRApps {
           mrAppClasspath.replaceAll(",\\s*",
             ApplicationConstants.CLASS_PATH_SEPARATOR).trim();
     }
-    assertTrue(environment.get("CLASSPATH").contains(mrAppClasspath));
+    assertTrue(environment.get(ApplicationConstants.Environment.CLASSPATH.
+        name()).contains(mrAppClasspath));
   }
   
   @Test (timeout = 120000)
@@ -234,8 +241,12 @@ public class TestMRApps {
     conf.set(MRJobConfig.CACHE_ARCHIVES, testTGZQualifiedPath + "#testTGZ");
     Map<String, String> environment = new HashMap<String, String>();
     MRApps.setClasspath(environment, conf);
-    assertTrue(environment.get("CLASSPATH").startsWith(
+    assertTrue(environment.get(ApplicationConstants.Environment.CLASSPATH.name()).startsWith(
       ApplicationConstants.Environment.PWD.$$() + ApplicationConstants.CLASS_PATH_SEPARATOR));
+    assertTrue(environment.get(ApplicationConstants.Environment.
+        HADOOP_CLASSPATH.name()).startsWith(
+            ApplicationConstants.Environment.PWD.$$() +
+            ApplicationConstants.CLASS_PATH_SEPARATOR));
     String confClasspath = job.getConfiguration().get(
         YarnConfiguration.YARN_APPLICATION_CLASSPATH,
         StringUtils.join(",",
@@ -244,8 +255,19 @@ public class TestMRApps {
       confClasspath = confClasspath.replaceAll(",\\s*", ApplicationConstants.CLASS_PATH_SEPARATOR)
         .trim();
     }
-    assertTrue(environment.get("CLASSPATH").contains(confClasspath));
-    assertTrue(environment.get("CLASSPATH").contains("testTGZ"));
+    LOG.info("CLASSPATH: "+ environment.get(
+        ApplicationConstants.Environment.CLASSPATH.name()));
+    LOG.info("confClasspath: " + confClasspath);
+    assertTrue(environment.get(
+        ApplicationConstants.Environment.CLASSPATH.name()).contains(
+            confClasspath));
+    LOG.info("HADOOP_CLASSPATH: " + environment.get(
+        ApplicationConstants.Environment.HADOOP_CLASSPATH.name()));
+    assertTrue(environment.get(
+        ApplicationConstants.Environment.CLASSPATH.name()).contains("testTGZ"));
+    assertTrue(environment.get(
+        ApplicationConstants.Environment.HADOOP_CLASSPATH.name()).
+        contains("testTGZ"));
   }
 
  @Test (timeout = 120000)
@@ -259,7 +281,7 @@ public class TestMRApps {
     } catch (Exception e) {
       fail("Got exception while setting classpath");
     }
-    String env_str = env.get("CLASSPATH");
+    String env_str = env.get(ApplicationConstants.Environment.CLASSPATH.name());
     String expectedClasspath = StringUtils.join(ApplicationConstants.CLASS_PATH_SEPARATOR,
       Arrays.asList(ApplicationConstants.Environment.PWD.$$(), "job.jar/job.jar",
         "job.jar/classes/", "job.jar/lib/*",
@@ -279,7 +301,7 @@ public class TestMRApps {
     } catch (Exception e) {
       fail("Got exception while setting classpath");
     }
-    String env_str = env.get("CLASSPATH");
+    String env_str = env.get(ApplicationConstants.Environment.CLASSPATH.name());
     String expectedClasspath = StringUtils.join(ApplicationConstants.CLASS_PATH_SEPARATOR,
       Arrays.asList("job.jar/job.jar", "job.jar/classes/", "job.jar/lib/*",
         ApplicationConstants.Environment.PWD.$$() + "/*"));
@@ -296,8 +318,9 @@ public class TestMRApps {
     conf.setBoolean(MRJobConfig.MAPREDUCE_JOB_CLASSLOADER, true);
     Map<String, String> env = new HashMap<String, String>();
     MRApps.setClasspath(env, conf);
-    String cp = env.get("CLASSPATH");
-    String appCp = env.get("APP_CLASSPATH");
+    String cp = env.get(ApplicationConstants.Environment.CLASSPATH.name());
+    String appCp = env.get(ApplicationConstants.Environment.
+        APP_CLASSPATH.name());
     assertFalse("MAPREDUCE_JOB_CLASSLOADER true, but job.jar is in the"
       + " classpath!", cp.contains("jar" + ApplicationConstants.CLASS_PATH_SEPARATOR + "job"));
     assertFalse("MAPREDUCE_JOB_CLASSLOADER true, but PWD is in the classpath!",
@@ -338,7 +361,8 @@ public class TestMRApps {
         Arrays.asList(ApplicationConstants.Environment.PWD.$$(),
             FRAMEWORK_CLASSPATH, stdClasspath));
     assertEquals("Incorrect classpath with framework and no user precedence",
-        expectedClasspath, env.get("CLASSPATH"));
+        expectedClasspath, env.get(ApplicationConstants.Environment.
+            CLASSPATH.name()));
 
     env.clear();
     conf.setBoolean(MRJobConfig.MAPREDUCE_JOB_USER_CLASSPATH_FIRST, true);
@@ -347,7 +371,8 @@ public class TestMRApps {
         Arrays.asList(ApplicationConstants.Environment.PWD.$$(),
             stdClasspath, FRAMEWORK_CLASSPATH));
     assertEquals("Incorrect classpath with framework and user precedence",
-        expectedClasspath, env.get("CLASSPATH"));
+        expectedClasspath, env.get(ApplicationConstants.Environment.CLASSPATH.
+            name()));
   }
 
   @Test (timeout = 30000)
@@ -358,7 +383,7 @@ public class TestMRApps {
     assertTrue("Empty Config did not produce an empty list of resources",
         localResources.isEmpty());
   }
-  
+
   @SuppressWarnings("deprecation")
   public void testSetupDistributedCacheConflicts() throws Exception {
     Configuration conf = new Configuration();

http://git-wip-us.apache.org/repos/asf/hadoop/blob/d4b86e6f/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/api/ApplicationConstants.java
----------------------------------------------------------------------
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/api/ApplicationConstants.java
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/api/ApplicationConstants.java
index d42cd67..b00c15d 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/api/ApplicationConstants.java
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/api/ApplicationConstants.java
@@ -160,6 +160,11 @@ public interface ApplicationConstants {
     APP_CLASSPATH("APP_CLASSPATH"),
     
     /**
+     * $HADOOP_CLASSPATH.
+     */
+    HADOOP_CLASSPATH("HADOOP_CLASSPATH"),
+
+    /**
      * $LD_LIBRARY_PATH
      */
     LD_LIBRARY_PATH("LD_LIBRARY_PATH"),


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