HDFS-9331. Modify TestNameNodeMXBean#testNameNodeMXBeanInfo() to account for filesystem entirely allocated for DFS use. (Tony Wu via lei)

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

@@ -1620,6 +1620,9 @@ Release 2.8.0 - UNRELEASED
 
     HDFS-9007. Fix HDFS Balancer to honor upgrade domain policy. (Ming Ma via lei)
 
+    HDFS-9331. Modify TestNameNodeMXBean#testNameNodeMXBeanInfo() to account for
+    filesystem entirely allocated for DFS use. (Tony Wu via lei)
+
   OPTIMIZATIONS
 
     HDFS-8026. Trace FSOutputSummer#writeChecksumChunks rather than

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

@@ -136,7 +136,7 @@ public class TestNameNodeMXBean {
       assertTrue(liveNodes.size() == 2);
       for (Map<String, Object> liveNode : liveNodes.values()) {
         assertTrue(liveNode.containsKey("nonDfsUsedSpace"));
-        assertTrue(((Long)liveNode.get("nonDfsUsedSpace")) > 0);
+        assertTrue(((Long)liveNode.get("nonDfsUsedSpace")) >= 0);
         assertTrue(liveNode.containsKey("capacity"));
         assertTrue(((Long)liveNode.get("capacity")) > 0);
         assertTrue(liveNode.containsKey("numBlocks"));