Set keepSameDiskWhenLoadingSnapshot default to true

Author: luoluoyuyu

iotdb-core/datanode/src/main/java/org/apache/iotdb/db/conf/IoTDBConfig.java

@@ -1218,7 +1218,7 @@ public class IoTDBConfig {
 
   private boolean includeNullValueInWriteThroughputMetric = false;
 
-  private boolean keepSameDiskWhenLoadingSnapshot = false;
+  private boolean keepSameDiskWhenLoadingSnapshot = true;
 
   private ConcurrentHashMap<String, EncryptParameter> tsFileDBToEncryptMap =
       new ConcurrentHashMap<>(

iotdb-core/node-commons/src/assembly/resources/conf/iotdb-system.properties.template

@@ -1703,7 +1703,7 @@ region_migration_speed_limit_bytes_per_second = 50331648
 # This may reduce file copies but may also result in a worse disk load-balance
 # effectiveMode: hot_reload
 # Datatype: boolean
-keep_same_disk_when_loading_snapshot=false
+keep_same_disk_when_loading_snapshot=true
 
 ####################
 ### Blob Allocator Configuration