HDFS-15559. Complement initialize member variables in TestHdfsConfigFields#initializeMemberVariables. Contributed by Lisheng Sun.

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

@@ -1236,6 +1236,14 @@
   restarts. Defaults to 10 minutes.</description>
 </property>
 
+  <property>
+    <name>dfs.client.write.recover.lease.on.close.exception</name>
+    <value>false</value>
+    <description>
+      Set to true to call recoverLease operation automatically when DFSOutputSteam closing encounters exception.
+    </description>
+  </property>
+
 <property>
   <name>dfs.namenode.checkpoint.dir</name>
   <value>file://${hadoop.tmp.dir}/dfs/namesecondary</value>

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

@@ -43,8 +43,10 @@ public class TestHdfsConfigFields extends TestConfigurationFieldsBase {
     configurationClasses = new Class[] { HdfsClientConfigKeys.class,
         HdfsClientConfigKeys.Failover.class,
         HdfsClientConfigKeys.StripedRead.class, DFSConfigKeys.class,
-        HdfsClientConfigKeys.BlockWrite.class,
-        HdfsClientConfigKeys.Read.class,
+        HdfsClientConfigKeys.BlockWrite.class, HdfsClientConfigKeys.Write.class,
+        HdfsClientConfigKeys.Read.class, HdfsClientConfigKeys.HedgedRead.class,
+        HdfsClientConfigKeys.ShortCircuit.class,
+        HdfsClientConfigKeys.Retry.class, HdfsClientConfigKeys.Mmap.class,
         HdfsClientConfigKeys.BlockWrite.ReplaceDatanodeOnFailure.class };
 
     // Set error modes