HADOOP-12849. TestSymlinkLocalFSFileSystem fails intermittently. Contributed by Mingliang Liu.

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

@@ -1752,6 +1752,9 @@ Release 2.8.0 - UNRELEASED
     HADOOP-12716. KerberosAuthenticator#doSpnegoSequence use incorrect class to
     determine isKeyTab in JDK8. (Xiaoyu Yao via cnauroth)
 
+    HADOOP-12849. TestSymlinkLocalFSFileSystem fails intermittently.
+    (Mingliang Liu via cnauroth)
+
 Release 2.7.3 - UNRELEASED
 
   INCOMPATIBLE CHANGES

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

@@ -1373,7 +1373,8 @@ public abstract class SymlinkBaseTest {
     long at = wrapper.getFileLinkStatus(link).getAccessTime();
     // the local file system may not support millisecond timestamps
     wrapper.setTimes(link, 2000L, 3000L);
-    assertEquals(at, wrapper.getFileLinkStatus(link).getAccessTime());
+    assertTrue("The atime of symlink should not be lesser after setTimes()",
+        wrapper.getFileLinkStatus(link).getAccessTime() >= at);
     assertEquals(2000, wrapper.getFileStatus(file).getModificationTime());
     assertEquals(3000, wrapper.getFileStatus(file).getAccessTime());
   }
@@ -1407,6 +1408,7 @@ public abstract class SymlinkBaseTest {
     } catch (IOException e) {
       // Expected
     }
-    assertEquals(at, wrapper.getFileLinkStatus(link).getAccessTime());
+    assertTrue("The atime of symlink should not be lesser after setTimes()",
+        wrapper.getFileLinkStatus(link).getAccessTime() >= at);
   }
 }