HDFS-13336. Test cases of TestWriteToReplica failed in windows. Contributed by Xiao Liang.

(cherry picked from commit df92a17e02fe86279a6f4e413719d0a465b50837)

hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/TestWriteToReplica.java

@@ -20,6 +20,7 @@ package org.apache.hadoop.hdfs.server.datanode.fsdataset.impl;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNotNull;
 
+import java.io.File;
 import java.io.IOException;
 import java.io.RandomAccessFile;
 import java.util.ArrayList;
@@ -63,7 +64,8 @@ public class TestWriteToReplica {
   // test close
   @Test
   public void testClose() throws Exception {
-    MiniDFSCluster cluster = new MiniDFSCluster.Builder(new HdfsConfiguration()).build();
+    MiniDFSCluster cluster = new MiniDFSCluster.Builder(new HdfsConfiguration(),
+        new File(GenericTestUtils.getRandomizedTempPath())).build();
     
     try {
       cluster.waitActive();
@@ -85,7 +87,8 @@ public class TestWriteToReplica {
   // test append
   @Test
   public void testAppend() throws Exception {
-    MiniDFSCluster cluster = new MiniDFSCluster.Builder(new HdfsConfiguration()).build();
+    MiniDFSCluster cluster = new MiniDFSCluster.Builder(new HdfsConfiguration(),
+        new File(GenericTestUtils.getRandomizedTempPath())).build();
     try {
       cluster.waitActive();
       DataNode dn = cluster.getDataNodes().get(0);
@@ -105,7 +108,8 @@ public class TestWriteToReplica {
   // test writeToRbw
   @Test
   public void testWriteToRbw() throws Exception {
-    MiniDFSCluster cluster = new MiniDFSCluster.Builder(new HdfsConfiguration()).build();
+    MiniDFSCluster cluster = new MiniDFSCluster.Builder(new HdfsConfiguration(),
+        new File(GenericTestUtils.getRandomizedTempPath())).build();
     try {
       cluster.waitActive();
       DataNode dn = cluster.getDataNodes().get(0);
@@ -125,7 +129,8 @@ public class TestWriteToReplica {
   // test writeToTemporary
   @Test
   public void testWriteToTemporary() throws Exception {
-    MiniDFSCluster cluster = new MiniDFSCluster.Builder(new HdfsConfiguration()).build();
+    MiniDFSCluster cluster = new MiniDFSCluster.Builder(new HdfsConfiguration(),
+        new File(GenericTestUtils.getRandomizedTempPath())).build();
     try {
       cluster.waitActive();
       DataNode dn = cluster.getDataNodes().get(0);
@@ -507,7 +512,8 @@ public class TestWriteToReplica {
   @Test
   public  void testReplicaMapAfterDatanodeRestart() throws Exception {
     Configuration conf = new HdfsConfiguration();
-    MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf)
+    MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf,
+        new File(GenericTestUtils.getRandomizedTempPath()))
         .nnTopology(MiniDFSNNTopology.simpleFederatedTopology(2))
         .build();
     try {
@@ -561,7 +567,8 @@ public class TestWriteToReplica {
   @Test
   public void testRecoverInconsistentRbw() throws IOException {
     Configuration conf = new HdfsConfiguration();
-    MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).build();
+    MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf,
+        new File(GenericTestUtils.getRandomizedTempPath())).build();
     cluster.waitActive();
     DataNode dn = cluster.getDataNodes().get(0);
     FsDatasetImpl fsDataset = (FsDatasetImpl)DataNodeTestUtils.getFSDataset(dn);