MAPREDUCE-6349. Fix typo in property org.apache.hadoop.mapreduce.lib.chain.Chain.REDUCER_INPUT_VALUE_CLASS. Contributed by Ray Chiang.

(cherry picked from commit bb6ef2984d8f117711b806c4ebdc757bd182c06e)

hadoop-mapreduce-project/CHANGES.txt

@@ -110,6 +110,9 @@ Release 2.8.0 - UNRELEASED
     MAPREDUCE-5905. CountersStrings.toEscapedCompactStrings outputs
     unnecessary "null" strings. (Akira AJISAKA via ozawa)
 
+    MAPREDUCE-6349. Fix typo in property org.apache.hadoop.mapreduce.
+    lib.chain.Chain.REDUCER_INPUT_VALUE_CLASS. (Ray Chiang via ozawa)
+
 Release 2.7.1 - UNRELEASED
 
   INCOMPATIBLE CHANGES

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/lib/chain/Chain.java

@@ -68,7 +68,7 @@ public class Chain {
   protected static final String REDUCER_INPUT_KEY_CLASS = 
     "mapreduce.chain.reducer.input.key.class";
   protected static final String REDUCER_INPUT_VALUE_CLASS = 
-    "maperduce.chain.reducer.input.value.class";
+    "mapreduce.chain.reducer.input.value.class";
   protected static final String REDUCER_OUTPUT_KEY_CLASS = 
     "mapreduce.chain.reducer.output.key.class";
   protected static final String REDUCER_OUTPUT_VALUE_CLASS =