fix default value

Author: hfutatzhanghb

hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/client/HdfsClientConfigKeys.java

@@ -432,7 +432,7 @@ interface ByteArrayManager {
     interface ECRedunency {
       String DFS_CLIENT_EC_WRITE_FAILED_BLOCKS_TOLERATED =
           "dfs.client.ec.write.failed.blocks.tolerated";
-      int DFS_CLIENT_EC_WRITE_FAILED_BLOCKS_TOLERATED_DEFAILT = Integer.MAX_VALUE;
+      int DFS_CLIENT_EC_WRITE_FAILED_BLOCKS_TOLERATED_DEFAILT = -1;
     }
   }
 

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

@@ -3925,14 +3925,14 @@
 
 <property>
   <name>dfs.client.ec.write.failed.blocks.tolerated</name>
-  <value>2147483647</value>
+  <value>-1</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.
     We can write successfully when there are 3 failure streamers. But if one of the six
     replicas lost during reconstruction, we may lose the data forever.
-    It should better configured between [0, numParityBlocks], the default value is
-    the parity block number of the specified ec policy we are using.
+    It should better configured between [0, numParityBlocks], the default value is -1 which
+    means the parity block number of the specified ec policy we are using.
   </description>
 </property>