[GitHub] [hadoop] umamaheswararao commented on a change in pull request #2132: HDFS-15464: ViewFsOverloadScheme should work when -fs option pointing to remote cluster without mount links

[GitBox <gi...@apache.org>]

umamaheswararao commented on a change in pull request #2132:
URL: https://github.com/apache/hadoop/pull/2132#discussion_r453274329



##########
File path: hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/viewfs/TestViewFsOverloadSchemeListStatus.java
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@@ -124,6 +126,24 @@ public void testListStatusACL() throws IOException, URISyntaxException {
     }
   }
 
+  /**
+   * Tests that ViewFSOverloadScheme should consider initialized fs as fallback
+   * if there are no mount links configured.
+   */
+  @Test(timeout = 30000)
+  public void testViewFSOverloadSchemeWithoutAnyMountLinks() throws Exception {
+    try (FileSystem fs = FileSystem.get(TEST_DIR.toPath().toUri(), conf)) {
+      ViewFileSystemOverloadScheme vfs = (ViewFileSystemOverloadScheme) fs;
+      Assert.assertEquals(0, vfs.getMountPoints().length);
+      Path testFallBack = new Path("test", FILE_NAME);
+      Assert.assertTrue(vfs.mkdirs(testFallBack));
+      FileStatus[] status = vfs.listStatus(testFallBack.getParent());
+      Assert.assertEquals(FILE_NAME, status[0].getPath().getName());
+      Assert.assertEquals(testFallBack.getName(),

Review comment:
       Done




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