HDDS-636. Turn off ozone.metastore.rocksdb.statistics for now. Contributed by Arpit Agarwal.

(cherry picked from commit 50552479c42d2e84cfeec83d4d67b050c5659b06)

hadoop-hdds/common/src/main/java/org/apache/hadoop/ozone/OzoneConfigKeys.java

@@ -90,7 +90,7 @@ public final class OzoneConfigKeys {
       "ozone.metastore.rocksdb.statistics";
 
   public static final String  OZONE_METADATA_STORE_ROCKSDB_STATISTICS_DEFAULT =
-      "ALL";
+      "OFF";
   public static final String OZONE_METADATA_STORE_ROCKSDB_STATISTICS_OFF =
       "OFF";
 

hadoop-hdds/common/src/main/resources/ozone-default.xml

@@ -514,7 +514,7 @@
 
   <property>
     <name>ozone.metastore.rocksdb.statistics</name>
-    <value>ALL</value>
+    <value>OFF</value>
     <tag>OZONE, OM, SCM, STORAGE, PERFORMANCE</tag>
     <description>
       The statistics level of the rocksdb store. If you use any value from