HDFS-10347. Namenode report bad block method doesn't log the bad block or datanode. Contributed by Rushabh Shah.

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java

@@ -4798,7 +4798,6 @@ public class FSNamesystem implements Namesystem, FSNamesystemMBean,
    */
   void reportBadBlocks(LocatedBlock[] blocks) throws IOException {
     checkOperation(OperationCategory.WRITE);
-    NameNode.stateChangeLog.info("*DIR* reportBadBlocks");
     writeLock();
     try {
       checkOperation(OperationCategory.WRITE);
@@ -4807,6 +4806,8 @@ public class FSNamesystem implements Namesystem, FSNamesystemMBean,
         DatanodeInfo[] nodes = blocks[i].getLocations();
         String[] storageIDs = blocks[i].getStorageIDs();
         for (int j = 0; j < nodes.length; j++) {
+          NameNode.stateChangeLog.info("*DIR* reportBadBlocks for block: {} on"
+              + " datanode: {}", blk, nodes[j].getXferAddr());
           blockManager.findAndMarkBlockAsCorrupt(blk, nodes[j],
               storageIDs == null ? null: storageIDs[j], 
               "client machine reported it");