HDFS-9615. Fix variable name typo in DFSConfigKeys. (Contributed by Ray Chiang)

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

@@ -403,6 +403,9 @@ Trunk (Unreleased)
     HDFS-9376. TestSeveralNameNodes fails occasionally.
     (Masatake Iwasaki via cnauroth)
 
+    HDFS-9615. Fix variable name typo in DFSConfigKeys. (Ray Chiang via
+    Arpit Agarwal)
+
     BREAKDOWN OF HDFS-7285 SUBTASKS AND RELATED JIRAS
 
       HDFS-7347. Configurable erasure coding policy for individual files and

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSConfigKeys.java

@@ -176,7 +176,7 @@ public class DFSConfigKeys extends CommonConfigurationKeys {
   public static final String  DFS_NAMENODE_CHECKPOINT_MAX_RETRIES_KEY = "dfs.namenode.checkpoint.max-retries";
   public static final int     DFS_NAMENODE_CHECKPOINT_MAX_RETRIES_DEFAULT = 3;
   public static final String  DFS_NAMENODE_MISSING_CHECKPOINT_PERIODS_BEFORE_SHUTDOWN_KEY = "dfs.namenode.missing.checkpoint.periods.before.shutdown";
-  public static final int     DFS_NAMENODE_MISSING_CHECKPOINT_PERIODS_BEFORE_SHUTDONW_DEFAULT = 3;
+  public static final int     DFS_NAMENODE_MISSING_CHECKPOINT_PERIODS_BEFORE_SHUTDOWN_DEFAULT = 3;
   public static final String  DFS_NAMENODE_HEARTBEAT_RECHECK_INTERVAL_KEY =
       HdfsClientConfigKeys.DeprecatedKeys.DFS_NAMENODE_HEARTBEAT_RECHECK_INTERVAL_KEY;
   public static final int     DFS_NAMENODE_HEARTBEAT_RECHECK_INTERVAL_DEFAULT = 5*60*1000;

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/tools/DFSAdmin.java

@@ -731,7 +731,7 @@ public class DFSAdmin extends FsShell {
           DFSConfigKeys.DFS_NAMENODE_CHECKPOINT_TXNS_DEFAULT);
       final int toleratePeriodNum = dfsConf.getInt(
           DFSConfigKeys.DFS_NAMENODE_MISSING_CHECKPOINT_PERIODS_BEFORE_SHUTDOWN_KEY,
-          DFSConfigKeys.DFS_NAMENODE_MISSING_CHECKPOINT_PERIODS_BEFORE_SHUTDONW_DEFAULT);
+          DFSConfigKeys.DFS_NAMENODE_MISSING_CHECKPOINT_PERIODS_BEFORE_SHUTDOWN_DEFAULT);
       timeWindow = checkpointPeriod * toleratePeriodNum;
       txGap = checkpointTxnCount * toleratePeriodNum;
       System.out.println("Do checkpoint if necessary before stopping " +