diff --git a/CMakeLists.txt b/CMakeLists.txt
index c83db07df6eafe89e5eb6e6ba7d23ffd2749519f..4d1aa9592d6ed5bcc3232476e475ab9d30c9726d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,24 +5,24 @@ set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
 set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
 set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
 
-add_definitions(-DNDEBUG) #是否禁用assert.
+# add_definitions(-DNDEBUG) #是否禁用assert.
 
-set(CMAKE_BUILD_TYPE "Release")
+# set(CMAKE_BUILD_TYPE "Release")
 # set(CMAKE_BUILD_TYPE "Debug")
 
 set(CMAKE_CXX_STANDARD 17)
-# set(CMAKE_CXX_FLAGS "-Wall -O0 -g -ggdb3")
+set(CMAKE_CXX_FLAGS "-Wall -O0 -g -ggdb3")
 # set(CMAKE_CXX_FLAGS "-Wall -O0 -g -ggdb3 -fsanitize=thread")
 # set(CMAKE_CXX_FLAGS "-Wall -O0 -g -ggdb3 -ltsan -fsanitize=thread")
 # set(CMAKE_CXX_FLAGS "-Wall -O0 -g -ggdb3 -fsanitize=undefined")
 # set(CMAKE_CXX_FLAGS "-Wall -O0 -g -ggdb3 -fsanitize=address -fsanitize-recover=address")
 # set(CMAKE_CXX_FLAGS "-Wall -O2 -g -ggdb3")
-set(CMAKE_CXX_FLAGS "-Wall -O3")
+# set(CMAKE_CXX_FLAGS "-Wall -O3")
 
-# set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -O0 -g")
-# set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -O0 -g")
-set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -O3")
-set(CMAKE_C_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -O3")
+set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -O0 -g")
+set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -O0 -g")
+# set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -O3")
+# set(CMAKE_C_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -O3")
 
 enable_testing()
 add_subdirectory(src)
diff --git a/check_master.py b/check_master.py
index e5649583ef18a7aedd07b53c30e7114fc2f0cb5e..30cc5ff4daff9cf11ab1580bacbe1e9d598ae123 100644
--- a/check_master.py
+++ b/check_master.py
@@ -3,7 +3,7 @@ import subprocess
 import time
 
 MAX_ITER_NUM = 1
-PROCESS_NUM = 1
+PROCESS_NUM = 32
 RECOVER_ITER_NUM = 1
 is_exit = False
 is_auto_start_server = False
diff --git a/src/recovery/log_recovery.cpp b/src/recovery/log_recovery.cpp
index f5ebfedd1b597bda2637f03e3ac4d37666444c75..197fb8e2a887a490e36c10926bb6d042e4e0616c 100644
--- a/src/recovery/log_recovery.cpp
+++ b/src/recovery/log_recovery.cpp
@@ -306,22 +306,24 @@ void RecoveryManager::parseLog(){
             #endif
         }
         else if(new_log->log_type_ == LogType::IX_INSERT){
-            IxInsertLogRecord* ix_ins_rec = new IxInsertLogRecord();
-            ix_ins_rec->deserialize(this->buffer_ + offset);
-            this->read_log_records.emplace_back(ix_ins_rec);
-            offset+= ix_ins_rec->log_tot_len_;
-            #ifdef DEBUG_RECOVERY
-                ix_ins_rec->format_print();
-            #endif
+            // IxInsertLogRecord* ix_ins_rec = new IxInsertLogRecord();
+            // ix_ins_rec->deserialize(this->buffer_ + offset);
+            // this->read_log_records.emplace_back(ix_ins_rec);
+            // offset+= ix_ins_rec->log_tot_len_;
+            // #ifdef DEBUG_RECOVERY
+            //     ix_ins_rec->format_print();
+            // #endif
+            assert(0);
         }
         else if(new_log->log_type_ == LogType::IX_DELETE){
-            IxDeleteLogRecord* ix_del_rec = new IxDeleteLogRecord();
-            ix_del_rec->deserialize(this->buffer_ + offset);
-            this->read_log_records.emplace_back(ix_del_rec);
-            offset+= ix_del_rec->log_tot_len_;
-            #ifdef DEBUG_RECOVERY
-                ix_del_rec->format_print();
-            #endif
+            // IxDeleteLogRecord* ix_del_rec = new IxDeleteLogRecord();
+            // ix_del_rec->deserialize(this->buffer_ + offset);
+            // this->read_log_records.emplace_back(ix_del_rec);
+            // offset+= ix_del_rec->log_tot_len_;
+            // #ifdef DEBUG_RECOVERY
+            //     ix_del_rec->format_print();
+            // #endif
+            assert(0);
         }
         //TODO
         else{
diff --git a/src/storage/disk_manager.cpp b/src/storage/disk_manager.cpp
index 54459eb8603bcc71ac372d006182f95b48be24ac..665cdcb3d5f025eb79efbf277ba03f56976a4730 100644
--- a/src/storage/disk_manager.cpp
+++ b/src/storage/disk_manager.cpp
@@ -17,8 +17,8 @@ See the Mulan PSL v2 for more details. */
 
 #include "defs.h"
 #define SHOW_IO
-// #define ENABLE_ASSERT_DISKMANAGER
-// #define DEBUG_DISK_MANAGER
+#define ENABLE_ASSERT_DISKMANAGER
+#define DEBUG_DISK_MANAGER
 
 
 DiskManager::DiskManager() { 
@@ -295,12 +295,12 @@ void DiskManager::write_log(char *log_data, int size) {
     // write from the file_end
     lseek64(log_fd_, 0, SEEK_END);
     ssize_t bytes_write = write(log_fd_, log_data, size);
-    // int sync_result = fsync(log_fd_);
-    // if(sync_result == -1) {
-    //     #ifdef ENABLE_ASSERT_DISKMANAGER
-    //         assert(0);
-    //     #endif
-    // }
+    int sync_result = fsync(log_fd_);
+    if(sync_result == -1) {
+        #ifdef ENABLE_ASSERT_DISKMANAGER
+            assert(0);
+        #endif
+    }
     if (bytes_write != size) {
         #ifdef DEBUG_DISK_MANAGER
             assert(0);