HBASE-6363 HBaseConfiguration can carry a main method that dumps XML output for debug purposes

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1364129 13f79535-47bb-0310-9956-ffa450edef68

hbase-common/src/main/java/org/apache/hadoop/hbase/HBaseConfiguration.java

@@ -147,4 +147,12 @@ public class HBaseConfiguration extends Configuration {
     }
     return isShowConf;
   }
+
+  /** For debugging.  Dump configurations to system output as xml format.
+   * Master and RS configurations can also be dumped using
+   * http services. e.g. "curl http://master:60010/dump"
+   */
+  public static void main(String[] args) throws Exception {
+    HBaseConfiguration.create().writeXml(System.out);
+  }
 }