HADOOP-8129. ViewFileSystemTestSetup setupForViewFileSystem is erring (Ahmed Radwan and Ravi Prakash via bobby)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1354093 13f79535-47bb-0310-9956-ffa450edef68

hadoop-common-project/hadoop-common/CHANGES.txt

@@ -731,6 +731,9 @@ Release 0.23.3 - UNRELEASED
     HADOOP-8495. Update Netty to avoid leaking file descriptors during shuffle
     (Jason Lowe via tgraves)
 
+    HADOOP-8129. ViewFileSystemTestSetup setupForViewFileSystem is erring
+    (Ahmed Radwan and Ravi Prakash via bobby)
+
 Release 0.23.2 - UNRELEASED 
 
   INCOMPATIBLE CHANGES

hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/viewfs/ViewFileSystemTestSetup.java

@@ -51,7 +51,19 @@ public class ViewFileSystemTestSetup {
     /**
      * create the test root on local_fs - the  mount table will point here
      */
-    fsTarget.mkdirs(FileSystemTestHelper.getTestRootPath(fsTarget));
+    Path targetOfTests = FileSystemTestHelper.getTestRootPath(fsTarget);
+    // In case previous test was killed before cleanup
+    fsTarget.delete(targetOfTests, true);
+    fsTarget.mkdirs(targetOfTests);
+
+    // Setup a link from viewfs to targetfs for the first component of
+    // path of testdir.
+    String testDir = FileSystemTestHelper.getTestRootPath(fsTarget).toUri()
+        .getPath();
+    int indexOf2ndSlash = testDir.indexOf('/', 1);
+    String testDirFirstComponent = testDir.substring(0, indexOf2ndSlash);
+    ConfigUtil.addLink(conf, testDirFirstComponent, fsTarget.makeQualified(
+        new Path(testDirFirstComponent)).toUri());
 
     // viewFs://home => fsTarget://home
     String homeDirRoot = fsTarget.getHomeDirectory()