HDFS-5679. TestCacheDirectives should handle the case where native code is not available. (wang)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1552461 13f79535-47bb-0310-9956-ffa450edef68

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

@@ -448,6 +448,9 @@ Trunk (Unreleased)
     HDFS-5454. DataNode UUID should be assigned prior to FsDataset
     initialization. (Arpit Agarwal)
 
+    HDFS-5679. TestCacheDirectives should handle the case where native code
+    is not available. (wang)
+
   BREAKDOWN OF HDFS-2832 SUBTASKS AND RELATED JIRAS
 
     HDFS-4985. Add storage type to the protocol and expose it in block report

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

@@ -98,6 +98,7 @@ public class TestCacheDirectives {
   static private CacheManipulator prevCacheManipulator;
 
   static {
+    NativeIO.POSIX.setCacheManipulator(new NoMlockCacheManipulator());
     EditLogFileOutputStream.setShouldSkipFsyncForTesting(false);
   }