Kai Zheng created HDFS-8104:
-------------------------------

             Summary: Make hard-coded values consistent with the system default 
schema first before remove them
                 Key: HDFS-8104
                 URL: https://issues.apache.org/jira/browse/HDFS-8104
             Project: Hadoop HDFS
          Issue Type: Sub-task
            Reporter: Kai Zheng
            Assignee: Kai Zheng


It's not easy to remove the hard-coded values to use the system default schema. 
We may need several steps/issues to cover relevant aspects. First of all, let's 
make the hard-coded values consistent with the system default schema first. 
This might not so easy, as experimental test indicated, when change the 
following two lines, some tests then failed.
{code}
-  public static final byte NUM_DATA_BLOCKS = 3;
-  public static final byte NUM_PARITY_BLOCKS = 2;
+  public static final byte NUM_DATA_BLOCKS = 6;
+  public static final byte NUM_PARITY_BLOCKS = 3;
{code}



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