HDFS-6797: Merging r1615017 from trunk to branch-2.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1615018 13f79535-47bb-0310-9956-ffa450edef68

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

@@ -154,6 +154,9 @@ Release 2.6.0 - UNRELEASED
     HDFS-3482. hdfs balancer throws ArrayIndexOutOfBoundsException 
     if option is specified without values. ( Madhukara Phatak via umamahesh) 
 
+    HDFS-6797. DataNode logs wrong layoutversion during upgrade. (Benoy Antony
+    via Arpit Agarwal)
+
 Release 2.5.0 - UNRELEASED
 
   INCOMPATIBLE CHANGES

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/BlockPoolSliceStorage.java

@@ -312,7 +312,7 @@ public class BlockPoolSliceStorage extends Storage {
     }
     LOG.info("Upgrading block pool storage directory " + bpSd.getRoot()
         + ".\n   old LV = " + this.getLayoutVersion() + "; old CTime = "
-        + this.getCTime() + ".\n   new LV = " + nsInfo.getLayoutVersion()
+        + this.getCTime() + ".\n   new LV = " + HdfsConstants.DATANODE_LAYOUT_VERSION
         + "; new CTime = " + nsInfo.getCTime());
     // get <SD>/previous directory
     String dnRoot = getDataNodeStorageRoot(bpSd.getRoot().getCanonicalPath());