copy from data_dir config to variable datadir

src/observer/ob_server_reload_config.cpp

@@ -271,6 +271,10 @@ int ObServerReloadConfig::operator()()
           K(data_disk_size), K(data_disk_percentage), K(reserved_size));
     }
   }
+
+  {
+    ObSysVariables::set_value("datadir", GCONF.data_dir);
+  }
   return real_ret;
 }
 

src/observer/virtual_table/ob_information_kvcache_table.h

@@ -21,9 +21,9 @@
 namespace oceanbase
 {
 namespace common
-{
-class ObObj;
-}
+{
+class ObObj;
+}
 
 namespace observer
 {
@@ -56,10 +56,10 @@ private:
     PRIORITY,
     CACHE_SIZE,
     CACHE_STORE_SIZE,
-    CACHE_MAP_SIZE,
-    KV_CNT,
-    HIT_RATIO,
-    TOTAL_PUT_CNT,
+    CACHE_MAP_SIZE,
+    KV_CNT,
+    HIT_RATIO,
+    TOTAL_PUT_CNT,
     TOTAL_HIT_CNT,
     TOTAL_MISS_CNT,
     HOLD_SIZE