fix failed unit tests.

Author: hfutatzhanghb

hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml

@@ -3910,7 +3910,7 @@
 
 <property>
   <name>dfs.client.ec.failed.write.block.tolerated</name>
-  <value></value>
+  <value>2147483647</value>
   <description>
     Provide extra tolerated failed streamer for ec policy to prevent
     the potential data loss. For example, if we use RS-6-3-1024K ec policy.

hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/tools/TestHdfsConfigFields.java

@@ -47,7 +47,8 @@ public void initializeMemberVariables() {
         HdfsClientConfigKeys.Read.class, HdfsClientConfigKeys.HedgedRead.class,
         HdfsClientConfigKeys.ShortCircuit.class,
         HdfsClientConfigKeys.Retry.class, HdfsClientConfigKeys.Mmap.class,
-        HdfsClientConfigKeys.BlockWrite.ReplaceDatanodeOnFailure.class };
+        HdfsClientConfigKeys.BlockWrite.ReplaceDatanodeOnFailure.class,
+        HdfsClientConfigKeys.Write.ECRedunency.class};
 
     // Set error modes
     errorIfMissingConfigProps = true;