Revert "HDFS-11736. OIV tests should not write outside 'target' directory. Contributed by Yiqun Lin."

This reverts commit a52315d2c3f758fff2be75e42928576752616bcd.

hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestCheckpoint.java

@@ -44,6 +44,7 @@ import java.util.Collection;
 import java.util.List;
 import java.util.Random;
 
+import com.google.common.io.Files;
 import org.apache.commons.cli.ParseException;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
@@ -2437,8 +2438,7 @@ public class TestCheckpoint {
   public void testLegacyOivImage() throws Exception {
     MiniDFSCluster cluster = null;
     SecondaryNameNode secondary = null;
-    File tmpDir = GenericTestUtils.getTestDir("testLegacyOivImage");
-    tmpDir.mkdirs();
+    File tmpDir = Files.createTempDir();
     Configuration conf = new HdfsConfiguration();
     conf.set(DFSConfigKeys.DFS_NAMENODE_LEGACY_OIV_IMAGE_DIR_KEY,
         tmpDir.getAbsolutePath());

hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/ha/TestStandbyCheckpoints.java

@@ -21,6 +21,7 @@ import com.google.common.base.Supplier;
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Lists;
+import com.google.common.io.Files;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.conf.Configuration;
@@ -113,8 +114,7 @@ public class TestStandbyCheckpoints {
   }
 
   protected Configuration setupCommonConfig() {
-    tmpOivImgDir = GenericTestUtils.getTestDir("TestStandbyCheckpoints");
-    tmpOivImgDir.mkdirs();
+    tmpOivImgDir = Files.createTempDir();
 
     Configuration conf = new Configuration();
     conf.setInt(DFSConfigKeys.DFS_NAMENODE_CHECKPOINT_CHECK_PERIOD_KEY, 1);
@@ -136,10 +136,6 @@ public class TestStandbyCheckpoints {
       cluster.shutdown();
       cluster = null;
     }
-
-    if (tmpOivImgDir != null) {
-      FileUtil.fullyDelete(tmpOivImgDir);
-    }
   }
 
   @Test(timeout = 300000)

hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/tools/offlineImageViewer/TestOfflineImageViewer.java

@@ -56,6 +56,8 @@ import javax.xml.parsers.ParserConfigurationException;
 import javax.xml.parsers.SAXParser;
 import javax.xml.parsers.SAXParserFactory;
 
+import com.google.common.io.Files;
+
 import org.apache.commons.io.FileUtils;
 import org.apache.commons.io.output.NullOutputStream;
 import org.apache.commons.logging.Log;
@@ -114,10 +116,7 @@ public class TestOfflineImageViewer {
   // multiple tests.
   @BeforeClass
   public static void createOriginalFSImage() throws IOException {
-    File[] nnDirs = MiniDFSCluster.getNameNodeDirectory(
-        MiniDFSCluster.getBaseDirectory(), 0, 0);
-    tempDir = nnDirs[0];
-
+    tempDir = Files.createTempDir();
     MiniDFSCluster cluster = null;
     try {
       Configuration conf = new Configuration();