diff --git a/HISTORY b/HISTORY
index 0564155..fac8eba 100644
--- a/HISTORY
+++ b/HISTORY
@@ -1,5 +1,5 @@
 
-Version 1.06  2014-06-27
+Version 1.06  2014-07-02
   * update source code from FastDFS V5.02
   * add function short2buff and buff2short
   * add object memory pool (fast_mblock.h and fast_mblock.c)
@@ -14,6 +14,7 @@ Version 1.06  2014-06-27
   * add libfastcommon.spec for building RPM
   * logger can delete old rotated files
   * bug fixed: connection pool should NOT increase counter when connect fail
+  * logger.c do NOT call fsync after write
 
 Version 1.05  2012-07-08
   * update source code from FastDFS V3.09
diff --git a/src/fast_mblock.c b/src/fast_mblock.c
index b1e33dc..c38035a 100644
--- a/src/fast_mblock.c
+++ b/src/fast_mblock.c
@@ -3,6 +3,7 @@
 #include <errno.h>
 #include <sys/resource.h>
 #include <pthread.h>
+#include <assert.h>
 #include "fast_mblock.h"
 #include "logger.h"
 #include "shared_func.h"
@@ -21,7 +22,7 @@ int fast_mblock_init(struct fast_mblock_man *mblock, const int element_size, \
 		return EINVAL;
 	}
 
-	mblock->element_size = element_size;
+	mblock->element_size = MEM_ALIGN(element_size);
 	if (alloc_elements_once > 0)
 	{
 		mblock->alloc_elements_once = alloc_elements_once;
@@ -30,7 +31,7 @@ int fast_mblock_init(struct fast_mblock_man *mblock, const int element_size, \
 	{
 		int block_size;
 		block_size = MEM_ALIGN(sizeof(struct fast_mblock_node) \
-			+ element_size);
+			+ mblock->element_size);
 		mblock->alloc_elements_once = (1024 * 1024) / block_size;
 	}
 
@@ -85,7 +86,6 @@ static int fast_mblock_prealloc(struct fast_mblock_man *mblock)
 		pNode = (struct fast_mblock_node *)p;
 		pNode->next = (struct fast_mblock_node *)(p + block_size);
 	}
-
 	((struct fast_mblock_node *)pLast)->next = NULL;
 	mblock->free_chain_head = (struct fast_mblock_node *)pTrunkStart;
 
@@ -116,6 +116,7 @@ void fast_mblock_destroy(struct fast_mblock_man *mblock)
 	}
 	mblock->malloc_chain_head = NULL;
 	mblock->free_chain_head = NULL;
+    mblock->total_count = 0;
 
 	pthread_mutex_destroy(&(mblock->lock));
 }
diff --git a/src/logger.c b/src/logger.c
index 33f708d..9b4a963 100644
--- a/src/logger.c
+++ b/src/logger.c
@@ -391,6 +391,7 @@ static int log_fsync(LogContext *pContext, const bool bNeedLock)
 		break;
 	}
 
+    /*
 	if (pContext->log_fd != STDERR_FILENO)
 	{
 		if (fsync(pContext->log_fd) != 0)
@@ -402,6 +403,7 @@ static int log_fsync(LogContext *pContext, const bool bNeedLock)
 			break;
 		}
 	}
+    */
 
 	if (pContext->rotate_immediately)
 	{