diff --git a/src/Makefile.in b/src/Makefile.in
index 602bfbd..d7386f1 100644
--- a/src/Makefile.in
+++ b/src/Makefile.in
@@ -5,12 +5,16 @@ INC_PATH = -I/usr/include -I/usr/local/include
 LIB_PATH = $(LIBS) -lfastcommon 
 TARGET_LIB = $(TARGET_PREFIX)/$(LIB_VERSION)
 
-ALL_HEADERS = sf_types.h sf_global.h sf_define.h sf_nio.h sf_service.h sf_func.h sf_util.h list.h
+ALL_HEADERS = sf_types.h sf_global.h sf_define.h sf_nio.h sf_service.h \
+              sf_func.h sf_util.h sf_configs.h
+
 ALL_LIBS = libserverframe.so
 
 all: $(ALL_LIBS)
 
-libserverframe.so: sf_nio.lo sf_service.lo sf_global.lo sf_func.lo sf_util.lo
+libserverframe.so: sf_nio.lo sf_service.lo sf_global.lo sf_func.lo sf_util.lo \
+        sf_configs.lo
+
 	cc -shared -o $@ $^ $(LIB_PATH)
 
 .lo:
diff --git a/src/sf_configs.c b/src/sf_configs.c
new file mode 100644
index 0000000..eb1b852
--- /dev/null
+++ b/src/sf_configs.c
@@ -0,0 +1,80 @@
+#include <time.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include "fastcommon/shared_func.h"
+#include "fastcommon/logger.h"
+#include "sf_configs.h"
+
+#define DEFAULT_RETRY_MAX_INTERVAL_MS      5000
+#define DEFAULT_CONNECT_RETRY_TIMES          10
+#define DEFAULT_CONNECT_RETRY_INTERVAL_MS   100
+#define DEFAULT_NETWORK_RETRY_TIMES          10
+#define DEFAULT_NETWORK_RETRY_INTERVAL_MS   100
+
+int sf_load_net_retry_config(SFNetRetryConfig *net_retry_cfg,
+        IniFullContext *ini_ctx)
+{
+    char *retry_interval_mode;
+    retry_interval_mode = iniGetStrValue(ini_ctx->section_name,
+            "retry_interval_mode", ini_ctx->context);
+    if (retry_interval_mode == NULL || *retry_interval_mode == '\0') {
+        net_retry_cfg->retry_interval_mode =
+            sf_net_retry_interval_mode_multiple;
+    } else if (strncasecmp(retry_interval_mode, "fixed", 5) == 0) {
+        net_retry_cfg->retry_interval_mode =
+            sf_net_retry_interval_mode_fixed;
+    } else if (strncasecmp(retry_interval_mode, "multi", 5) == 0) {
+        net_retry_cfg->retry_interval_mode =
+            sf_net_retry_interval_mode_multiple;
+    } else {
+        logWarning("file: "__FILE__", line: %d, "
+                "config file: %s, unkown retry_interval_mode: %s, "
+                "set to multiple", __LINE__, ini_ctx->filename,
+                retry_interval_mode);
+        net_retry_cfg->retry_interval_mode =
+            sf_net_retry_interval_mode_multiple;
+    }
+
+    net_retry_cfg->retry_max_interval_ms = iniGetIntValue(
+            ini_ctx->section_name, "retry_max_interval_ms",
+            ini_ctx->context, DEFAULT_RETRY_MAX_INTERVAL_MS);
+
+    net_retry_cfg->connect_retry_times = iniGetIntValue(
+            ini_ctx->section_name, "connect_retry_times",
+            ini_ctx->context, DEFAULT_CONNECT_RETRY_TIMES);
+
+    net_retry_cfg->connect_retry_interval_ms = iniGetIntValue(
+            ini_ctx->section_name, "connect_retry_interval_ms",
+            ini_ctx->context, DEFAULT_CONNECT_RETRY_INTERVAL_MS);
+
+    net_retry_cfg->network_retry_times = iniGetIntValue(
+            ini_ctx->section_name, "network_retry_times",
+            ini_ctx->context, DEFAULT_NETWORK_RETRY_TIMES);
+
+    net_retry_cfg->network_retry_interval_ms = iniGetIntValue(
+            ini_ctx->section_name, "network_retry_interval_ms",
+            ini_ctx->context, DEFAULT_NETWORK_RETRY_INTERVAL_MS);
+
+    return 0;
+}
+
+void sf_net_retry_config_to_string(SFNetRetryConfig *net_retry_cfg,
+        char *output, const int size)
+{
+    snprintf(output, size, "retry_interval_mode=%s, "
+            "retry_max_interval_ms=%d ms, connect_retry_times=%d, "
+            "connect_retry_interval_ms=%d ms, network_retry_times=%d, "
+            "network_retry_interval_ms=%d ms",
+            (net_retry_cfg->retry_interval_mode ==
+             sf_net_retry_interval_mode_fixed ? "fixed" : "multipl"),
+            net_retry_cfg->retry_max_interval_ms,
+            net_retry_cfg->connect_retry_times,
+            net_retry_cfg->connect_retry_interval_ms,
+            net_retry_cfg->network_retry_times,
+            net_retry_cfg->network_retry_interval_ms);
+}
diff --git a/src/sf_configs.h b/src/sf_configs.h
new file mode 100644
index 0000000..9576966
--- /dev/null
+++ b/src/sf_configs.h
@@ -0,0 +1,40 @@
+//sf_global.h
+
+#ifndef _SF_GLOBAL_H
+#define _SF_GLOBAL_H
+
+#include "fastcommon/common_define.h"
+#include "fastcommon/ini_file_reader.h"
+#include "sf_define.h"
+#include "sf_types.h"
+
+typedef enum sf_net_retry_interval_mode {
+    sf_net_retry_interval_mode_fixed,
+    sf_net_retry_interval_mode_multiple
+} SFNetRetryIntervalMode;
+
+typedef struct sf_net_retry_config {
+    SFNetRetryIntervalMode retry_interval_mode;
+    int retry_max_interval_ms;
+    int connect_retry_times;
+    int connect_retry_interval_ms;
+    int network_retry_times;
+    int network_retry_interval_ms;
+} SFNetRetryConfig;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+int sf_load_net_retry_config(SFNetRetryConfig *net_retry_cfg,
+        IniFullContext *ini_ctx);
+
+void sf_net_retry_config_to_string(SFNetRetryConfig *net_retry_cfg,
+        char *output, const int size);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
diff --git a/src/sf_global.c b/src/sf_global.c
index 7897f61..2297c74 100644
--- a/src/sf_global.c
+++ b/src/sf_global.c
@@ -14,7 +14,6 @@
 #include "fastcommon/common_define.h"
 #include "fastcommon/shared_func.h"
 #include "fastcommon/logger.h"
-#include "sf_define.h"
 #include "sf_nio.h"
 #include "sf_global.h"
 
diff --git a/src/sf_nio.c b/src/sf_nio.c
index f75ae18..874f747 100644
--- a/src/sf_nio.c
+++ b/src/sf_nio.c
@@ -274,7 +274,8 @@ static int sf_nio_deal_task(struct fast_task_info *task)
     return result;
 }
 
-int sf_nio_notify(struct fast_task_info *task, const int new_stage)
+int sf_nio_notify_ex(struct fast_task_info *task, const int new_stage,
+        const char *file, const int line)
 {
     int64_t n;
     int result;
@@ -288,9 +289,10 @@ int sf_nio_notify(struct fast_task_info *task, const int new_stage)
     {
         if (SF_NIO_STAGE_IS_INPROGRESS(old_stage)) {
             logWarning("file: "__FILE__", line: %d, "
+                    "from caller {file: %s, line: %d}, "
                     "client ip: %s, nio stage in progress, "
                     "current stage: %d, skip set to %d", __LINE__,
-                    task->client_ip, old_stage, new_stage);
+                    file, line, task->client_ip, old_stage, new_stage);
             return EBUSY;
         }
     }
@@ -299,9 +301,10 @@ int sf_nio_notify(struct fast_task_info *task, const int new_stage)
                 old_stage, new_stage))
     {
         logWarning("file: "__FILE__", line: %d, "
+                "from caller {file: %s, line: %d}, "
                 "client ip: %s, skip set stage to %d because stage "
-                "changed, current stage: %d", __LINE__, task->client_ip,
-                new_stage, SF_NIO_TASK_STAGE_FETCH(task));
+                "changed, current stage: %d", __LINE__, file, line,
+                task->client_ip, new_stage, SF_NIO_TASK_STAGE_FETCH(task));
         return EEXIST;
     }
 
diff --git a/src/sf_nio.h b/src/sf_nio.h
index 90f98d2..fd01268 100644
--- a/src/sf_nio.h
+++ b/src/sf_nio.h
@@ -50,7 +50,11 @@ int sf_client_sock_read(int sock, short event, void *arg);
 
 void sf_task_finish_clean_up(struct fast_task_info *task);
 
-int sf_nio_notify(struct fast_task_info *task, const int new_stage);
+int sf_nio_notify_ex(struct fast_task_info *task, const int new_stage,
+        const char *file, const int line);
+
+#define sf_nio_notify(task, new_stage) \
+    sf_nio_notify_ex(task, new_stage, __FILE__, __LINE__)
 
 int sf_set_read_event(struct fast_task_info *task);