Merge -r 1227237:1227238 from trunk to branch. FIXES: MAPREDUCE-1744

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-0.23@1227789 13f79535-47bb-0310-9956-ffa450edef68

hadoop-mapreduce-project/CHANGES.txt

@@ -357,6 +357,9 @@ Release 0.23.1 - Unreleased
 
     MAPREDUCE-3615. Fix some ant test failures. (Thomas Graves via sseth)
 
+    MAPREDUCE-1744. DistributedCache creates its own FileSytem instance when 
+    adding a file/archive to the path. (Dick King via tucu)
+
 Release 0.23.0 - 2011-11-01 
 
   INCOMPATIBLE CHANGES

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/Job.java

@@ -1030,7 +1030,7 @@ public class Job extends JobContextImpl implements JobContext {
   public void addFileToClassPath(Path file)
     throws IOException {
     ensureState(JobState.DEFINE);
-    DistributedCache.addFileToClassPath(file, conf);
+    DistributedCache.addFileToClassPath(file, conf, file.getFileSystem(conf));
   }
 
   /**
@@ -1045,7 +1045,7 @@ public class Job extends JobContextImpl implements JobContext {
   public void addArchiveToClassPath(Path archive)
     throws IOException {
     ensureState(JobState.DEFINE);
-    DistributedCache.addArchiveToClassPath(archive, conf);
+    DistributedCache.addArchiveToClassPath(archive, conf, archive.getFileSystem(conf));
   }
 
   /**

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/filecache/DistributedCache.java

@@ -269,7 +269,7 @@ public class DistributedCache {
   /**
    * Add an file path to the current set of classpath entries It adds the file
    * to cache as well.  Intended to be used by user code.
-   * 
+   *
    * @param file Path of the file to be added
    * @param conf Configuration that contains the classpath setting
    * @deprecated Use {@link Job#addFileToClassPath(Path)} instead
@@ -277,12 +277,25 @@ public class DistributedCache {
   @Deprecated
   public static void addFileToClassPath(Path file, Configuration conf)
     throws IOException {
+	  addFileToClassPath(file, conf, file.getFileSystem(conf));
+  }
+
+  /**
+   * Add a file path to the current set of classpath entries. It adds the file
+   * to cache as well.  Intended to be used by user code.
+   *
+   * @param file Path of the file to be added
+   * @param conf Configuration that contains the classpath setting
+   * @param fs FileSystem with respect to which {@code archivefile} should
+   *              be interpreted.
+   */
+  public static void addFileToClassPath
+           (Path file, Configuration conf, FileSystem fs)
+        throws IOException {
     String classpath = conf.get(MRJobConfig.CLASSPATH_FILES);
     conf.set(MRJobConfig.CLASSPATH_FILES, classpath == null ? file.toString()
              : classpath + "," + file.toString());
-    FileSystem fs = FileSystem.get(conf);
     URI uri = fs.makeQualified(file).toUri();
-
     addCacheFile(uri, conf);
   }
 
@@ -318,10 +331,23 @@ public class DistributedCache {
   @Deprecated
   public static void addArchiveToClassPath(Path archive, Configuration conf)
     throws IOException {
+    addArchiveToClassPath(archive, conf, archive.getFileSystem(conf));
+  }
+
+  /**
+   * Add an archive path to the current set of classpath entries. It adds the
+   * archive to cache as well.  Intended to be used by user code.
+   *
+   * @param archive Path of the archive to be added
+   * @param conf Configuration that contains the classpath setting
+   * @param fs FileSystem with respect to which {@code archive} should be interpreted.
+   */
+  public static void addArchiveToClassPath
+         (Path archive, Configuration conf, FileSystem fs)
+      throws IOException {
     String classpath = conf.get(MRJobConfig.CLASSPATH_ARCHIVES);
     conf.set(MRJobConfig.CLASSPATH_ARCHIVES, classpath == null ? archive
              .toString() : classpath + "," + archive.toString());
-    FileSystem fs = FileSystem.get(conf);
     URI uri = fs.makeQualified(archive).toUri();
 
     addCacheArchive(uri, conf);

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/test/java/org/apache/hadoop/mapreduce/v2/TestMROldApiJobs.java

@@ -196,7 +196,7 @@ public class TestMROldApiJobs {
       file.close();
     }
 
-    DistributedCache.addFileToClassPath(TestMRJobs.APP_JAR, conf);
+    DistributedCache.addFileToClassPath(TestMRJobs.APP_JAR, conf, fs);
     conf.setOutputCommitter(CustomOutputCommitter.class);
     conf.setInputFormat(TextInputFormat.class);
     conf.setOutputKeyClass(LongWritable.class);