HDFS-7954. TestBalancer#testBalancerWithPinnedBlocks should not be executed on Windows. Contributed by Xiaoyu Yao

hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt

@@ -1360,6 +1360,9 @@ Release 2.7.0 - UNRELEASED
     HDFS-8001 RpcProgramNfs3 : wrong parsing of dfs.blocksize
     (Remi Catherinot via brandonli)
 
+    HDFS-7954. TestBalancer#testBalancerWithPinnedBlocks should not be executed
+    on Windows.  (Xiaoyu Yao via szetszwo)
+
     BREAKDOWN OF HDFS-7584 SUBTASKS AND RELATED JIRAS
 
       HDFS-7720. Quota by Storage Type API, tools and ClientNameNode

hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/balancer/TestBalancer.java

@@ -23,6 +23,7 @@ import static org.apache.hadoop.hdfs.DFSConfigKeys.*;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertTrue;
 import static org.junit.Assert.fail;
+import static org.junit.Assume.assumeTrue;
 
 import java.io.File;
 import java.io.IOException;
@@ -309,6 +310,11 @@ public class TestBalancer {
    */
   @Test(timeout=100000)
   public void testBalancerWithPinnedBlocks() throws Exception {
+    // This test assumes stick-bit based block pin mechanism available only
+    // in Linux/Unix. It can be unblocked on Windows when HDFS-7759 is ready to
+    // provide a different mechanism for Windows.
+    assumeTrue(!Path.WINDOWS);
+
     final Configuration conf = new HdfsConfiguration();
     initConf(conf);
     conf.setBoolean(DFS_DATANODE_BLOCK_PINNING_ENABLED, true);