diff --git a/scanner/adapter_hs/adapter_hs.cpp b/scanner/adapter_hs/adapter_hs.cpp
index 4ad7b90..6920159 100644
--- a/scanner/adapter_hs/adapter_hs.cpp
+++ b/scanner/adapter_hs/adapter_hs.cpp
@@ -646,22 +646,25 @@ struct adapter_hs_stream *adapter_hs_stream_open(struct adapter_hs *hs_instance,
     utarray_new(hs_stream->pattern_id_set, &ut_pattern_id_icd);
     utarray_reserve(hs_stream->pattern_id_set, hs_stream->n_patterns);
 
+    int err_count = 0;
     if (hs_instance->hs_rt->literal_db != NULL) {
         err = hs_open_stream(hs_instance->hs_rt->literal_db, 0, &hs_stream->literal_stream);
         if (err != HS_SUCCESS) {
-            // log_error
-            return NULL;
+           err_count++;
         }
     }
 
     if (hs_instance->hs_rt->regex_db != NULL) {
         err = hs_open_stream(hs_instance->hs_rt->regex_db, 0, &hs_stream->regex_stream);
         if (err != HS_SUCCESS) {
-            // log_error
-            return NULL;
+            err_count++;
         }
     }
 
+    if (2 == err_count) {
+        return NULL;
+    }
+
     return hs_stream;
 }
 
@@ -675,13 +678,14 @@ int adapter_hs_scan_stream(struct adapter_hs_stream *hs_stream, const char *data
         return -1;
     }
     
+    int err_count = 0;
     int thread_id = hs_stream->thread_id;
     if (hs_stream->literal_stream != NULL) {
         err = hs_scan_stream(hs_stream->literal_stream, data, data_len, 
                              0, hs_stream->hs_rt->scratchs[thread_id],
                              matched_event_cb, hs_stream->pattern_id_set);
         if (err != HS_SUCCESS) {
-            return -1;
+            err_count++;
         }
     }
     
@@ -690,10 +694,14 @@ int adapter_hs_scan_stream(struct adapter_hs_stream *hs_stream, const char *data
                              0, hs_stream->hs_rt->scratchs[thread_id],
                              matched_event_cb, hs_stream->pattern_id_set);
         if (err != HS_SUCCESS) {
-            return -1;
+            err_count++;
         }
     }
 
+    if (2 == err_count) {
+        return -1;
+    }
+
     size_t pattern_set_size = utarray_len(hs_stream->pattern_id_set);
     unsigned long long items[pattern_set_size];
     memset(items, 0, sizeof(unsigned long long) * pattern_set_size);
@@ -736,10 +744,19 @@ void adapter_hs_stream_close(struct adapter_hs_stream *hs_stream)
     int thread_id = hs_stream->thread_id;
 
     if (hs_stream->hs_rt != NULL) {
-        hs_close_stream(hs_stream->literal_stream,
-                        hs_stream->hs_rt->scratchs[thread_id], NULL, NULL);
-        hs_close_stream(hs_stream->regex_stream,
-                        hs_stream->hs_rt->scratchs[thread_id], NULL, NULL);
+        if (hs_stream->literal_stream != NULL) {
+            hs_close_stream(hs_stream->literal_stream,
+                            hs_stream->hs_rt->scratchs[thread_id], 
+                            NULL, NULL);
+            hs_stream->literal_stream = NULL;
+        }
+        
+        if (hs_stream->regex_stream != NULL) {
+            hs_close_stream(hs_stream->regex_stream,
+                            hs_stream->hs_rt->scratchs[thread_id], 
+                            NULL, NULL);
+            hs_stream->regex_stream = NULL;
+        }
     }
    
     utarray_free(hs_stream->pattern_id_set);
diff --git a/src/inc_internal/maat_bool_plugin.h b/src/inc_internal/maat_bool_plugin.h
index 9c8a6bb..dad2ce4 100644
--- a/src/inc_internal/maat_bool_plugin.h
+++ b/src/inc_internal/maat_bool_plugin.h
@@ -49,8 +49,9 @@ int bool_plugin_runtime_commit(void *bool_plugin_runtime, const char *table_name
 
 struct ex_data_runtime *bool_plugin_runtime_get_ex_data_rt(void *bool_plugin_runtime);
 
-int bool_plugin_runtime_get_ex_data(void *fqdn_plugin_runtime, unsigned long long *item_ids,
-                                    size_t n_item, void **ex_data_array, size_t n_ex_data);
+int bool_plugin_runtime_get_ex_data(void *bool_plugin_runtime, void *bool_plugin_schema,
+                                    unsigned long long *item_ids, size_t n_item, 
+                                    void **ex_data_array, size_t n_ex_data);
 
 #ifdef __cplusplus
 }
diff --git a/src/inc_internal/maat_ex_data.h b/src/inc_internal/maat_ex_data.h
index b64a0d2..22ac88a 100644
--- a/src/inc_internal/maat_ex_data.h
+++ b/src/inc_internal/maat_ex_data.h
@@ -64,9 +64,6 @@ struct ex_data_schema *ex_data_schema_new(maat_ex_new_func_t *new_func,
 										  long argl, void *argp);
 void ex_data_schema_free(struct ex_data_schema *ex_schema);
 
-void ex_data_runtime_set_schema(struct ex_data_runtime *ex_data_rt, 
-                                struct ex_data_schema *schema);
-
 /* set user_ctx API */
 void ex_data_runtime_set_ex_container_schema(struct ex_data_runtime *ex_data_rt, 
                                           struct ex_container_schema *container_schema);
@@ -78,7 +75,8 @@ struct ex_container *ex_container_new(void *ex_data, void *custom_data);
 void ex_container_free(void *ctx, void *data);
 
 /* ex_data_runtime ex data API */
-void *ex_data_runtime_row2ex_data(struct ex_data_runtime *ex_data_rt, 
+void *ex_data_runtime_row2ex_data(struct ex_data_runtime *ex_data_rt,
+                                  struct ex_data_schema *ex_schema,
                                   const char *row, const char *key, 
                                   size_t key_len);
 
@@ -96,10 +94,12 @@ size_t ex_data_runtime_ex_container_count(struct ex_data_runtime *ex_data_rt);
 
 int ex_data_runtime_is_updating(struct ex_data_runtime *ex_data_rt);
 
-void *ex_data_runtime_get_ex_data_by_key(struct ex_data_runtime *ex_data_rt, 
+void *ex_data_runtime_get_ex_data_by_key(struct ex_data_runtime *ex_data_rt,
+                                         struct ex_data_schema *ex_schema,
                                          const char *key, size_t key_len);
 
 void *ex_data_runtime_get_ex_data_by_container(struct ex_data_runtime *ex_data_rt,
+                                               struct ex_data_schema *ex_schema,
                                                struct ex_container *ex_container);
                                                
 void *ex_data_runtime_get_custom_data(struct ex_data_runtime *ex_data_rt, 
diff --git a/src/inc_internal/maat_fqdn_plugin.h b/src/inc_internal/maat_fqdn_plugin.h
index 1633bf4..637d7ae 100644
--- a/src/inc_internal/maat_fqdn_plugin.h
+++ b/src/inc_internal/maat_fqdn_plugin.h
@@ -49,8 +49,8 @@ int fqdn_plugin_runtime_commit(void *fqdn_plugin_runtime, const char *table_name
 
 struct ex_data_runtime *fqdn_plugin_runtime_get_ex_data_rt(void *fqdn_plugin_runtime);
 
-int fqdn_plugin_runtime_get_ex_data(void *fqdn_plugin_runtime, const char *fqdn, 
-                                    void **ex_data_array, size_t n_ex_data);
+int fqdn_plugin_runtime_get_ex_data(void *fqdn_plugin_runtime, void *fqdn_plugin_schema,
+                                    const char *fqdn, void **ex_data_array, size_t n_ex_data);
 #ifdef __cplusplus
 }
 #endif
diff --git a/src/inc_internal/maat_ip_plugin.h b/src/inc_internal/maat_ip_plugin.h
index a174a4d..2f49217 100644
--- a/src/inc_internal/maat_ip_plugin.h
+++ b/src/inc_internal/maat_ip_plugin.h
@@ -49,8 +49,9 @@ int ip_plugin_runtime_commit(void *ip_plugin_runtime, const char *table_name);
 
 struct ex_data_runtime *ip_plugin_runtime_get_ex_data_rt(void *ip_plugin_runtime);
 
-int ip_plugin_runtime_get_ex_data(void *ip_plugin_runtime, const struct ip_addr *ip_addr, 
-                                  void **ex_data_array, size_t n_ex_data_array);
+int ip_plugin_runtime_get_ex_data(void *ip_plugin_runtime, void *ip_plugin_schema,
+                                  const struct ip_addr *ip_addr, void **ex_data_array, 
+                                  size_t n_ex_data_array);
 
 #ifdef __cplusplus
 }
diff --git a/src/maat_api.c b/src/maat_api.c
index 064babd..ecd7b34 100644
--- a/src/maat_api.c
+++ b/src/maat_api.c
@@ -601,34 +601,33 @@ int generic_plugin_table_set_ex_schema(struct table_manager *tbl_mgr, int table_
 void generic_plugin_runtime_commit_ex_schema(void *runtime, void *schema, int table_id, 
                                              enum table_type table_type, int valid_column)
 {
-    struct ex_data_schema *ex_data_schema = NULL;
+    struct ex_data_schema *ex_schema = NULL;
     struct ex_data_runtime *ex_data_rt = NULL;
 
     switch (table_type) {
         case TABLE_TYPE_PLUGIN:
-            ex_data_schema = plugin_table_get_ex_data_schema(schema);
+            ex_schema = plugin_table_get_ex_data_schema(schema);
             ex_data_rt = plugin_runtime_get_ex_data_rt(runtime);
             break;
         case TABLE_TYPE_IP_PLUGIN:
-            ex_data_schema = ip_plugin_table_get_ex_data_schema(schema);
+            ex_schema = ip_plugin_table_get_ex_data_schema(schema);
             ex_data_rt = ip_plugin_runtime_get_ex_data_rt(runtime);
             break;
         case TABLE_TYPE_FQDN_PLUGIN:
-            ex_data_schema = fqdn_plugin_table_get_ex_data_schema(schema);
+            ex_schema = fqdn_plugin_table_get_ex_data_schema(schema);
             ex_data_rt = fqdn_plugin_runtime_get_ex_data_rt(runtime);
             break;
         case TABLE_TYPE_BOOL_PLUGIN:
-            ex_data_schema = bool_plugin_table_get_ex_data_schema(schema);
+            ex_schema = bool_plugin_table_get_ex_data_schema(schema);
             ex_data_rt = bool_plugin_runtime_get_ex_data_rt(runtime);
             break;
         default:
             break;
     }
 
-    ex_data_runtime_set_schema(ex_data_rt, ex_data_schema);
     struct ex_container_schema *container_schema = ALLOC(struct ex_container_schema, 1);
     container_schema->table_id = table_id;
-    container_schema->ex_schema = ex_data_schema;
+    container_schema->ex_schema = ex_schema;
     ex_data_runtime_set_ex_container_schema(ex_data_rt, container_schema);
 
     size_t n_cached_row = ex_data_runtime_cached_row_count(ex_data_rt);
@@ -809,7 +808,16 @@ int maat_ip_plugin_table_get_ex_data(struct maat *maat_instance, int table_id,
         return -1;
     }
 
-    int n_hit_ex_data = ip_plugin_runtime_get_ex_data(ip_plugin_rt, ip_addr, ex_data_array, n_ex_data);
+    void *ip_plugin_schema = table_manager_get_schema(maat_rt->ref_tbl_mgr, table_id);
+    if (NULL == ip_plugin_schema) {
+        log_error(maat_instance->logger, MODULE_MAAT_API,
+                  "[%s:%d] table(table_id:%d) schema is NULL", 
+                  __FUNCTION__, __LINE__, table_id);
+        return -1;
+    }
+
+    int n_hit_ex_data = ip_plugin_runtime_get_ex_data(ip_plugin_rt, ip_plugin_schema, ip_addr, 
+                                                      ex_data_array, n_ex_data);
     if (n_hit_ex_data < 0) {
         log_error(maat_instance->logger, MODULE_MAAT_API,
                   "[%s:%d] ip_plugin table(table_id:%d) get ex_data error.", 
@@ -848,7 +856,16 @@ int maat_fqdn_plugin_table_get_ex_data(struct maat *maat_instance, int table_id,
         return -1;
     }
 
-    int n_hit_ex_data = fqdn_plugin_runtime_get_ex_data(fqdn_plugin_rt, fqdn, ex_data_array, n_ex_data);
+    void *fqdn_plugin_schema = table_manager_get_schema(maat_rt->ref_tbl_mgr, table_id);
+    if (NULL == fqdn_plugin_schema) {
+        log_error(maat_instance->logger, MODULE_MAAT_API,
+                  "[%s:%d] table(table_id:%d) schema is NULL", 
+                  __FUNCTION__, __LINE__, table_id);
+        return -1;
+    }
+
+    int n_hit_ex_data = fqdn_plugin_runtime_get_ex_data(fqdn_plugin_rt, fqdn_plugin_schema,
+                                                        fqdn, ex_data_array, n_ex_data);
     if (n_hit_ex_data < 0) {
         log_error(maat_instance->logger, MODULE_MAAT_API,
                   "[%s:%d] fqdn_plugin table(table_id:%d) get ex_data error.", 
@@ -887,7 +904,17 @@ int maat_bool_plugin_table_get_ex_data(struct maat *maat_instance, int table_id,
         return -1;
     }
 
-    int n_hit_ex_data = bool_plugin_runtime_get_ex_data(bool_plugin_rt, item_ids, n_item, ex_data_array, n_ex_data);
+    void *bool_plugin_schema = table_manager_get_schema(maat_rt->ref_tbl_mgr, table_id);
+    if (NULL == bool_plugin_schema) {
+        log_error(maat_instance->logger, MODULE_MAAT_API,
+                  "[%s:%d] table(table_id:%d) schema is NULL", 
+                  __FUNCTION__, __LINE__, table_id);
+        return -1;
+    }
+
+    int n_hit_ex_data = bool_plugin_runtime_get_ex_data(bool_plugin_rt, bool_plugin_schema,
+                                                        item_ids, n_item, ex_data_array, 
+                                                        n_ex_data);
     if (n_hit_ex_data < 0) {
         log_error(maat_instance->logger, MODULE_MAAT_API,
                   "[%s:%d] bool_plugin table(table_id:%d) get ex_data error.", 
diff --git a/src/maat_bool_plugin.c b/src/maat_bool_plugin.c
index c6ae600..e0b204c 100644
--- a/src/maat_bool_plugin.c
+++ b/src/maat_bool_plugin.c
@@ -212,6 +212,7 @@ void bool_plugin_runtime_free(void *bool_plugin_runtime)
 }
 
 int bool_plugin_runtime_update_row(struct bool_plugin_runtime *bool_plugin_rt,
+                                   struct ex_data_schema *ex_schema,
                                    const char *row, char *key, size_t key_len, 
                                    struct bool_expr *expr, int is_valid)
 {
@@ -226,7 +227,7 @@ int bool_plugin_runtime_update_row(struct bool_plugin_runtime *bool_plugin_rt,
         }
     } else {
         // add
-        void *ex_data = ex_data_runtime_row2ex_data(ex_data_rt, row, key, key_len);
+        void *ex_data = ex_data_runtime_row2ex_data(ex_data_rt, ex_schema, row, key, key_len);
         struct ex_container *ex_container = ex_container_new(ex_data, (void *)expr);
         ret = ex_data_runtime_add_ex_container(ex_data_rt, key, key_len, ex_container);
         if (ret < 0) {
@@ -369,7 +370,8 @@ int bool_plugin_runtime_update(void *bool_plugin_runtime, void *bool_plugin_sche
         return -1;
     }
 
-    if (schema->ex_schema != NULL) {
+    struct ex_data_schema *ex_schema = schema->ex_schema;
+    if (ex_schema != NULL) {
         if (1 == is_valid) {
             // add
             bool_expr = bool_plugin_expr_new(line, schema, bool_plugin_rt->logger);
@@ -379,7 +381,7 @@ int bool_plugin_runtime_update(void *bool_plugin_runtime, void *bool_plugin_sche
         }
 
         char *key = (char *)&item_id;
-        int ret = bool_plugin_runtime_update_row(bool_plugin_rt, line, key,
+        int ret = bool_plugin_runtime_update_row(bool_plugin_rt, ex_schema, line, key,
                                                  sizeof(long long), bool_expr, is_valid);
         if (ret < 0) {
             if (bool_expr != NULL) {
@@ -475,10 +477,17 @@ struct ex_data_runtime *bool_plugin_runtime_get_ex_data_rt(void *bool_plugin_run
     return bool_plugin_rt->ex_data_rt;
 }
 
-int bool_plugin_runtime_get_ex_data(void *bool_plugin_runtime, unsigned long long *item_ids,
-                                    size_t n_item, void **ex_data_array, size_t n_ex_data)
+int bool_plugin_runtime_get_ex_data(void *bool_plugin_runtime, void *bool_plugin_schema,
+                                    unsigned long long *item_ids, size_t n_item, 
+                                    void **ex_data_array, size_t n_ex_data)
 {
-    if (NULL == bool_plugin_runtime) {
+    if (NULL == bool_plugin_runtime || NULL == bool_plugin_schema) {
+        return -1;
+    }
+
+    struct bool_plugin_schema *schema = (struct bool_plugin_schema *)bool_plugin_schema;
+    struct ex_data_schema *ex_schema = schema->ex_schema;
+    if (NULL == ex_schema) {
         return -1;
     }
 
@@ -494,7 +503,7 @@ int bool_plugin_runtime_get_ex_data(void *bool_plugin_runtime, unsigned long lon
     assert(bool_plugin_rt->matcher != NULL);
 	int n_result = bool_matcher_match(bool_plugin_rt->matcher, item_ids, n_item, results, n_ex_data);
 	for (int i = 0; i < n_result; i++) {
-		ex_data_array[i] = ex_data_runtime_get_ex_data_by_container(bool_plugin_rt->ex_data_rt, 
+		ex_data_array[i] = ex_data_runtime_get_ex_data_by_container(bool_plugin_rt->ex_data_rt, ex_schema,
                                                                     (struct ex_container *)results[i].user_tag);
 	}
 
diff --git a/src/maat_ex_data.c b/src/maat_ex_data.c
index 7f9c122..1314080 100644
--- a/src/maat_ex_data.c
+++ b/src/maat_ex_data.c
@@ -25,7 +25,6 @@ struct ex_data_runtime {
     size_t cache_size;
 
     struct rcu_hash_table *htable;
-    struct ex_data_schema *ref_ex_schema;
     struct maat_garbage_bin *ref_garbage_bin;
 	int table_id;
 
@@ -158,16 +157,6 @@ void ex_data_schema_free(struct ex_data_schema *ex_schema)
     
 }
 
-void ex_data_runtime_set_schema(struct ex_data_runtime *ex_data_rt, 
-                                struct ex_data_schema *schema)
-{
-    if (NULL == ex_data_rt) {
-        return;
-    }
-
-    ex_data_rt->ref_ex_schema = schema;
-}
-
 void ex_data_runtime_set_ex_container_schema(struct ex_data_runtime *ex_data_rt, 
                                              struct ex_container_schema *container_schema)
 {
@@ -188,14 +177,15 @@ ex_data_runtime_get_ex_container_schema(struct ex_data_runtime *ex_data_rt)
     return (struct ex_container_schema *)rcu_hash_get_user_ctx(ex_data_rt->htable);
 }
 
-void *ex_data_runtime_row2ex_data(struct ex_data_runtime *ex_data_rt, const char *row, 
-                                  const char *key, size_t key_len)
+void *ex_data_runtime_row2ex_data(struct ex_data_runtime *ex_data_rt, 
+                                  struct ex_data_schema *ex_schema,
+                                  const char *row, const char *key, 
+                                  size_t key_len)
 {   
     void *ex_data = NULL;
-    struct ex_data_schema *ex_schema = ex_data_rt->ref_ex_schema;
+    
     ex_schema->new_func(ex_data_rt->table_id, key, row, &ex_data, 
                         ex_schema->argl, ex_schema->argp);
-
     return ex_data;
 }
 
@@ -252,7 +242,8 @@ int ex_data_runtime_del_ex_container(struct ex_data_runtime *ex_data_rt,
     return rcu_hash_del(ex_data_rt->htable, key, key_len);
 }
 
-void *ex_data_runtime_get_ex_data_by_key(struct ex_data_runtime *ex_data_rt, 
+void *ex_data_runtime_get_ex_data_by_key(struct ex_data_runtime *ex_data_rt,
+                                         struct ex_data_schema *ex_schema,
                                          const char *key, size_t key_len)
 {
     struct ex_container *ex_container = NULL;
@@ -264,21 +255,18 @@ void *ex_data_runtime_get_ex_data_by_key(struct ex_data_runtime *ex_data_rt,
     }
 
     void *dup_ex_data = NULL;
-    ex_data_rt->ref_ex_schema->dup_func(ex_data_rt->table_id, &dup_ex_data, 
-                                    &(ex_container->ex_data), 
-                                    ex_data_rt->ref_ex_schema->argl, 
-                                    ex_data_rt->ref_ex_schema->argp);
+    ex_schema->dup_func(ex_data_rt->table_id, &dup_ex_data, &(ex_container->ex_data), 
+                        ex_schema->argl, ex_schema->argp);
     return dup_ex_data;
 }
 
-void *ex_data_runtime_get_ex_data_by_container(struct ex_data_runtime *ex_data_rt, 
+void *ex_data_runtime_get_ex_data_by_container(struct ex_data_runtime *ex_data_rt,
+                                               struct ex_data_schema *ex_schema,
                                                struct ex_container *ex_container)
 {
     void *dup_ex_data = NULL;
-    ex_data_rt->ref_ex_schema->dup_func(ex_data_rt->table_id, &dup_ex_data, 
-                                    &(ex_container->ex_data), 
-                                    ex_data_rt->ref_ex_schema->argl, 
-                                    ex_data_rt->ref_ex_schema->argp);
+    ex_schema->dup_func(ex_data_rt->table_id, &dup_ex_data, &(ex_container->ex_data), 
+                        ex_schema->argl, ex_schema->argp);
     return dup_ex_data;
 }
 
diff --git a/src/maat_fqdn_plugin.c b/src/maat_fqdn_plugin.c
index 1d81b3f..3199277 100644
--- a/src/maat_fqdn_plugin.c
+++ b/src/maat_fqdn_plugin.c
@@ -304,7 +304,8 @@ void fqdn_plugin_rule_free(struct FQDN_rule *rule)
 }
 
 int fqdn_plugin_runtime_update_row(struct fqdn_plugin_runtime *fqdn_plugin_rt,
-                                   const char *row, const char *key, size_t key_len, 
+                                   struct ex_data_schema *ex_schema, const char *row, 
+                                   const char *key, size_t key_len, 
                                    struct FQDN_rule *fqdn_plugin_rule, int is_valid)
 {
     int ret = -1;
@@ -318,7 +319,7 @@ int fqdn_plugin_runtime_update_row(struct fqdn_plugin_runtime *fqdn_plugin_rt,
         }
     } else {
         // add
-        void *ex_data = ex_data_runtime_row2ex_data(ex_data_rt, row, key, key_len);
+        void *ex_data = ex_data_runtime_row2ex_data(ex_data_rt, ex_schema, row, key, key_len);
         struct ex_container *ex_container = ex_container_new(ex_data, (void *)fqdn_plugin_rule);
         ret = ex_data_runtime_add_ex_container(ex_data_rt, key, key_len, ex_container);
         if (ret < 0) {
@@ -350,7 +351,8 @@ int fqdn_plugin_runtime_update(void *fqdn_plugin_runtime, void *fqdn_plugin_sche
         return -1;
     }
 
-    if (schema->ex_schema != NULL) {
+    struct ex_data_schema *ex_schema = schema->ex_schema;
+    if (ex_schema != NULL) {
         if (1 == is_valid) {
             // add
             fqdn_plugin_rule = fqdn_plugin_rule_new(line, schema, fqdn_plugin_rt->logger);
@@ -360,19 +362,13 @@ int fqdn_plugin_runtime_update(void *fqdn_plugin_runtime, void *fqdn_plugin_sche
         }
 
         char *key = (char *)&item_id;
-        int ret = fqdn_plugin_runtime_update_row(fqdn_plugin_rt, line, key, sizeof(long long),
+        int ret = fqdn_plugin_runtime_update_row(fqdn_plugin_rt, ex_schema, line, key, sizeof(long long), 
                                                  fqdn_plugin_rule, is_valid);
         if (ret < 0) {
             if (fqdn_plugin_rule != NULL) {
                 fqdn_plugin_rule_free(fqdn_plugin_rule);
             }
             return -1;
-        } else {
-            if (0 == is_valid) {
-                fqdn_plugin_rt->rule_num--;
-            } else {
-                fqdn_plugin_rt->rule_num++;
-            }
         }
     } else {
         //ex_schema not set
@@ -462,10 +458,17 @@ struct ex_data_runtime *fqdn_plugin_runtime_get_ex_data_rt(void *fqdn_plugin_run
 }
 
 
-int fqdn_plugin_runtime_get_ex_data(void *fqdn_plugin_runtime, const char *query_fqdn, 
-                                    void **ex_data_array, size_t n_ex_data)
+int fqdn_plugin_runtime_get_ex_data(void *fqdn_plugin_runtime, void *fqdn_plugin_schema,
+                                    const char *query_fqdn, void **ex_data_array, 
+                                    size_t n_ex_data)
 {
-    if (NULL == fqdn_plugin_runtime) {
+    if (NULL == fqdn_plugin_runtime || NULL == fqdn_plugin_schema) {
+        return -1;
+    }
+
+    struct fqdn_plugin_schema *schema = (struct fqdn_plugin_schema *)fqdn_plugin_schema;
+    struct ex_data_schema *ex_schema = schema->ex_schema;
+    if (NULL == ex_schema) {
         return -1;
     }
 
@@ -480,7 +483,7 @@ int fqdn_plugin_runtime_get_ex_data(void *fqdn_plugin_runtime, const char *query
     assert(fqdn_plugin_rt->engine != NULL);
 	int n_result = FQDN_engine_search(fqdn_plugin_rt->engine, query_fqdn, strlen(query_fqdn), results, n_ex_data);
 	for (int i = 0; i < n_result; i++) {
-		ex_data_array[i] = ex_data_runtime_get_ex_data_by_container(fqdn_plugin_rt->ex_data_rt, 
+		ex_data_array[i] = ex_data_runtime_get_ex_data_by_container(fqdn_plugin_rt->ex_data_rt, ex_schema,
                                                                     (struct ex_container *)results[i].user_tag);
 	}
 
diff --git a/src/maat_ip_plugin.c b/src/maat_ip_plugin.c
index 35ef420..795a203 100644
--- a/src/maat_ip_plugin.c
+++ b/src/maat_ip_plugin.c
@@ -311,8 +311,9 @@ void ip_plugin_table_set_ex_data_schema(void *ip_plugin_schema,
 }
 
 int ip_plugin_runtime_update_row(struct ip_plugin_runtime *ip_plugin_rt,
-                                  const char *row, char *key, size_t key_len, 
-                                  struct ip_rule *ip_plugin_rule, int is_valid)
+                                 struct ex_data_schema *ex_schema, 
+                                 const char *row, char *key, size_t key_len, 
+                                 struct ip_rule *ip_plugin_rule, int is_valid)
 {
     int ret = -1;
     struct ex_data_runtime *ex_data_rt = ip_plugin_rt->ex_data_rt;
@@ -328,7 +329,7 @@ int ip_plugin_runtime_update_row(struct ip_plugin_runtime *ip_plugin_rt,
         }
     } else {
         // add
-        void *ex_data = ex_data_runtime_row2ex_data(ex_data_rt, row, key, key_len);
+        void *ex_data = ex_data_runtime_row2ex_data(ex_data_rt, ex_schema, row, key, key_len);
         struct ex_container *ex_container = ex_container_new(ex_data, (void *)ip_plugin_rule);
         ret = ex_data_runtime_add_ex_container(ex_data_rt, key, key_len, ex_container);
         if (ret < 0) {
@@ -399,7 +400,8 @@ int ip_plugin_runtime_update(void *ip_plugin_runtime, void *ip_plugin_schema,
         return -1;
     }
 
-    if (schema->ex_schema != NULL) {
+    struct ex_data_schema *ex_schema = schema->ex_schema;
+    if (ex_schema != NULL) {
         if (1 == is_valid) {
             // add
             ip_plugin_rule = ip_plugin_rule_new(line, schema, ip_plugin_rt->logger);
@@ -409,8 +411,9 @@ int ip_plugin_runtime_update(void *ip_plugin_runtime, void *ip_plugin_schema,
         }
 
         char *key = (char *)&item_id;
-        int ret = ip_plugin_runtime_update_row(ip_plugin_rt, line, key, sizeof(long long), 
-                                               ip_plugin_rule, is_valid);
+        int ret = ip_plugin_runtime_update_row(ip_plugin_rt, ex_schema, line, key, 
+                                               sizeof(long long), ip_plugin_rule, 
+                                               is_valid);
         if (ret < 0) {
             if (ip_plugin_rule != NULL) {
                 ip_plugin_rule_free(ip_plugin_rule);
@@ -505,10 +508,17 @@ struct ex_data_runtime *ip_plugin_runtime_get_ex_data_rt(void *ip_plugin_runtime
     return ip_plugin_rt->ex_data_rt;
 }
 
-int ip_plugin_runtime_get_ex_data(void *ip_plugin_runtime, const struct ip_addr *ip_addr, 
-                                  void **ex_data_array, size_t n_ex_data)
+int ip_plugin_runtime_get_ex_data(void *ip_plugin_runtime, void *ip_plugin_schema,
+                                  const struct ip_addr *ip_addr, void **ex_data_array, 
+                                  size_t n_ex_data)
 {
-    if (NULL == ip_plugin_runtime) {
+    if (NULL == ip_plugin_runtime || NULL == ip_plugin_schema) {
+        return -1;
+    }
+
+    struct ip_plugin_schema *schema = (struct ip_plugin_schema *)ip_plugin_schema;
+    struct ex_data_schema *ex_schema = schema->ex_schema;
+    if (NULL == ex_schema) {
         return -1;
     }
 
@@ -530,7 +540,7 @@ int ip_plugin_runtime_get_ex_data(void *ip_plugin_runtime, const struct ip_addr
     assert(ip_plugin_rt->ip_matcher != NULL);
 	int n_result = ip_matcher_match(ip_plugin_rt->ip_matcher, &ip_data, results, n_ex_data);
 	for (int i = 0; i < n_result; i++) {
-		ex_data_array[i] = ex_data_runtime_get_ex_data_by_container(ip_plugin_rt->ex_data_rt, 
+		ex_data_array[i] = ex_data_runtime_get_ex_data_by_container(ip_plugin_rt->ex_data_rt, ex_schema,
                                                                     (struct ex_container *)results[i].tag);
 	}
 	return n_result;
diff --git a/src/maat_plugin.c b/src/maat_plugin.c
index 125aa06..ccb4251 100644
--- a/src/maat_plugin.c
+++ b/src/maat_plugin.c
@@ -9,6 +9,8 @@
 */
 
 #include <assert.h>
+#include <errno.h>
+#include <limits.h>
 
 #include "log/log.h"
 #include "maat_utils.h"
@@ -20,6 +22,12 @@
 
 #define MODULE_PLUGIN	 module_name_str("maat.plugin")
 
+enum plugin_key_type {
+    PLUGIN_KEY_TYPE_INVALID = 0,
+    PLUGIN_KEY_TYPE_POINTER,
+    PLUGIN_KEY_TYPE_INTEGER
+};
+
 struct plugin_callback_schema {
 	maat_start_callback_t *start;
 	maat_update_callback_t *update;
@@ -40,6 +48,7 @@ struct plugin_runtime {
 #define	MAX_PLUGIN_PER_TABLE 32
 struct plugin_schema {
     int key_column;
+    enum plugin_key_type key_type;
     int rule_tag_column;
     int n_foreign;
     int foreign_columns[MAX_FOREIGN_CLMN_NUM];
@@ -102,6 +111,26 @@ void *plugin_schema_new(cJSON *json, struct table_manager *tbl_mgr,
     }
     schema->key_column = custom_item->valueint;
     
+    custom_item = cJSON_GetObjectItem(item, "key_type");
+    if (NULL == custom_item || custom_item->type != cJSON_String) {
+        log_error(logger, MODULE_PLUGIN, 
+                  "[%s:%d] plugin table: %s has no key_type column", 
+                  __FUNCTION__, __LINE__, table_name);
+        goto error;
+    }
+
+    if (strcmp(custom_item->valuestring, "pointer") == 0) {
+        schema->key_type = PLUGIN_KEY_TYPE_POINTER;
+    } else if (strcmp(custom_item->valuestring, "integer") == 0) {
+        schema->key_type = PLUGIN_KEY_TYPE_INTEGER;
+    } else {
+        log_error(logger, MODULE_PLUGIN, 
+                  "[%s:%d] plugin table: %s key_type:%s illegal", 
+                  __FUNCTION__, __LINE__, table_name, 
+                  custom_item->valuestring);
+        goto error;
+    }
+    
     custom_item = cJSON_GetObjectItem(item, "tag");
     if (custom_item != NULL && custom_item->type == cJSON_Number) {
         schema->rule_tag_column = custom_item->valueint;
@@ -281,7 +310,7 @@ int plugin_runtime_update_row(struct plugin_runtime *plugin_rt,
             }
         } else {
             // add
-            void *ex_data = ex_data_runtime_row2ex_data(plugin_rt->ex_data_rt, row, key, key_len);
+            void *ex_data = ex_data_runtime_row2ex_data(plugin_rt->ex_data_rt, ex_schema, row, key, key_len);
             struct ex_container *ex_container = ex_container_new(ex_data, NULL);
             ret = ex_data_runtime_add_ex_container(plugin_rt->ex_data_rt, key, key_len, ex_container);
             if (ret < 0) {
@@ -452,9 +481,18 @@ void *plugin_runtime_get_ex_data(void *plugin_runtime, void *plugin_schema,
 
     struct plugin_runtime *plugin_rt = (struct plugin_runtime *)plugin_runtime;
     struct plugin_schema *schema = (struct plugin_schema *)plugin_schema;
-    if (NULL == schema->ex_schema) {
+    struct ex_data_schema *ex_schema = schema->ex_schema;
+    if (NULL == ex_schema) {
         return NULL;
     }
 
-    return ex_data_runtime_get_ex_data_by_key(plugin_rt->ex_data_rt, key, key_len);
+    if (schema->key_type == PLUGIN_KEY_TYPE_INTEGER) {
+        char key_str[MAX_KEYWORDS_STR] = {0};
+        long long key_int = *(long long *)key;
+        sprintf(key_str, "%lld", key_int);
+        key_len = strlen(key_str);
+        return ex_data_runtime_get_ex_data_by_key(plugin_rt->ex_data_rt, ex_schema, key_str, key_len);
+    } else {
+        return ex_data_runtime_get_ex_data_by_key(plugin_rt->ex_data_rt, ex_schema, key, key_len);
+    }    
 }
\ No newline at end of file
diff --git a/test/maat_ex_data_gtest.cpp b/test/maat_ex_data_gtest.cpp
index f24e28d..33f28e8 100644
--- a/test/maat_ex_data_gtest.cpp
+++ b/test/maat_ex_data_gtest.cpp
@@ -60,12 +60,11 @@ TEST(EXDataRuntime, Update) {
     struct ex_data_runtime *ex_data_rt = ex_data_runtime_new(table_id, ex_container_free, garbage_bin, g_logger);
     struct ex_data_schema *ex_schema = ex_data_schema_new(ex_data_new_cb, ex_data_free_cb, ex_data_dup_cb, 
                                                           0, &ex_data_counter);
-    ex_data_runtime_set_schema(ex_data_rt, ex_schema);
 
     const char *row1 = "1\t192.168.0.1\tmahuateng\t1\t0";
     const char *key1 = "192.168.0.1";
     size_t key1_len = strlen(key1);
-    void *ex_data = ex_data_runtime_row2ex_data(ex_data_rt, row1, key1, key1_len);
+    void *ex_data = ex_data_runtime_row2ex_data(ex_data_rt, ex_schema, row1, key1, key1_len);
     EXPECT_EQ(ex_data_counter, 1);
 
     struct ex_container *ex_container = ex_container_new(ex_data, NULL);
@@ -75,21 +74,21 @@ TEST(EXDataRuntime, Update) {
     const char *row2 = "2\t192.168.0.2\tliyanhong\t1\t0";
     const char *key2 = "192.168.0.2";
     size_t key2_len = strlen(key2);
-    ex_data = ex_data_runtime_row2ex_data(ex_data_rt, row2, key2, key2_len);
+    ex_data = ex_data_runtime_row2ex_data(ex_data_rt, ex_schema, row2, key2, key2_len);
     ex_container = ex_container_new(ex_data, NULL);
     ret = ex_data_runtime_add_ex_container(ex_data_rt, key2, key2_len, ex_container);
     EXPECT_EQ(ret, 0);
 
     ex_data_runtime_commit(ex_data_rt);
 
-    void *res_data1 = ex_data_runtime_get_ex_data_by_key(ex_data_rt, "192.168.0.1", 11);
+    void *res_data1 = ex_data_runtime_get_ex_data_by_key(ex_data_rt, ex_schema, "192.168.0.1", 11);
     EXPECT_TRUE(res_data1 != NULL);
 
     struct user_info *info = (struct user_info *)res_data1;
     EXPECT_EQ(0, strcmp(info->name, "mahuateng"));
     EXPECT_EQ(info->id, 1);
 
-    void *res_data2 = ex_data_runtime_get_ex_data_by_key(ex_data_rt, "192.168.0.2", 11);
+    void *res_data2 = ex_data_runtime_get_ex_data_by_key(ex_data_rt, ex_schema, "192.168.0.2", 11);
     EXPECT_TRUE(res_data2 != NULL);
 
     info = (struct user_info *)res_data2;
diff --git a/test/maat_framework_gtest.cpp b/test/maat_framework_gtest.cpp
index d475d66..e379c6b 100644
--- a/test/maat_framework_gtest.cpp
+++ b/test/maat_framework_gtest.cpp
@@ -1414,6 +1414,7 @@ protected:
 
         struct maat_options *opts = maat_options_new();
         maat_options_set_redis(opts, redis_ip, redis_port, redis_db);
+        maat_options_set_deferred_load_on(opts);
         maat_options_set_logger(opts, g_logger);
         maat_options_set_accept_tags(opts, accept_tags);
 
@@ -1449,6 +1450,107 @@ TEST_F(PluginTable, Callback) {
     EXPECT_EQ(ret, 0);
 }
 
+struct plugin_ud {
+	char key[256];
+    char value[256];
+    int id;
+	int ref_cnt;
+};
+
+void plugin_EX_new_cb(int table_id, const char *key, const char *table_line, 
+                         void **ad, long argl, void *argp)
+{
+	int *counter = (int *)argp;
+    int valid = 0, tag = 0;
+	struct plugin_ud *ud = ALLOC(struct plugin_ud, 1);
+
+	int ret = sscanf(table_line, "%d\t%s\t%s\t%d\t%d", &(ud->id), ud->key, ud->value, &valid, &tag);
+    EXPECT_EQ(ret, 5);
+    ud->ref_cnt = 1;
+    *ad = ud;
+	(*counter)++;
+}
+
+void plugin_EX_free_cb(int table_id, void **ad, long argl, void *argp)
+{
+	struct plugin_ud *ud = (struct plugin_ud *)(*ad);
+	if ((__sync_sub_and_fetch(&ud->ref_cnt, 1) == 0)) {
+		free(ud);
+		*ad = NULL;
+	}
+}
+
+void plugin_EX_dup_cb(int table_id, void **to, void **from, long argl, void *argp)
+{
+	struct plugin_ud *ud = (struct plugin_ud *)(*from);
+	__sync_add_and_fetch(&(ud->ref_cnt), 1);
+	*to = ud;
+}
+
+TEST_F(PluginTable, EX_DATA) {
+    const char *table_name = "TEST_PLUGIN_EXDATA_TABLE";
+    struct maat *maat_instance = PluginTable::_shared_maat_instance;
+
+    int table_id = maat_get_table_id(maat_instance, table_name);
+    ASSERT_GT(table_id, 0);
+
+    int plugin_ex_data_counter = 0;
+    int ret = maat_plugin_table_ex_schema_register(maat_instance, table_id,
+                                                   plugin_EX_new_cb,
+                                                   plugin_EX_free_cb,
+                                                   plugin_EX_dup_cb,
+                                                   0, &plugin_ex_data_counter);
+    EXPECT_EQ(ret, 0);
+    EXPECT_EQ(plugin_ex_data_counter, 4);
+
+    const char *key1 = "HeBei";
+    struct plugin_ud *ud = NULL;
+    ud = (struct plugin_ud *)maat_plugin_table_get_ex_data(maat_instance, table_id, key1);
+    ASSERT_TRUE(ud != NULL);
+    EXPECT_STREQ(ud->value, "Shijiazhuang");
+    EXPECT_EQ(ud->id, 1);
+    plugin_EX_free_cb(table_id, (void **)&ud, 0, NULL);
+
+    const char *key2 = "ShanDong";
+    ud = (struct plugin_ud *)maat_plugin_table_get_ex_data(maat_instance, table_id, key2);
+    ASSERT_TRUE(ud != NULL);
+    EXPECT_STREQ(ud->value, "Jinan");
+    EXPECT_EQ(ud->id, 3);
+    plugin_EX_free_cb(table_id, (void **)&ud, 0, NULL);
+}
+
+TEST_F(PluginTable, KEY_TYPE) {
+    const char *table_name = "TEST_PLUGIN_KEY_TYPE_TABLE";
+    struct maat *maat_instance = PluginTable::_shared_maat_instance;
+
+    int table_id = maat_get_table_id(maat_instance, table_name);
+    ASSERT_GT(table_id, 0);
+
+    int plugin_ex_data_counter = 0;
+    int ret = maat_plugin_table_ex_schema_register(maat_instance, table_id,
+                                                   plugin_EX_new_cb,
+                                                   plugin_EX_free_cb,
+                                                   plugin_EX_dup_cb,
+                                                   0, &plugin_ex_data_counter);
+    EXPECT_EQ(ret, 0);
+    EXPECT_EQ(plugin_ex_data_counter, 4);
+
+    long long key1 = 11111111;
+    struct plugin_ud *ud = NULL;
+    ud = (struct plugin_ud *)maat_plugin_table_get_ex_data(maat_instance, table_id, (char *)&key1);
+    ASSERT_TRUE(ud != NULL);
+    EXPECT_STREQ(ud->value, "Shijiazhuang");
+    EXPECT_EQ(ud->id, 1);
+    plugin_EX_free_cb(table_id, (void **)&ud, 0, NULL);
+
+    long long key2 = 33333333;
+    ud = (struct plugin_ud *)maat_plugin_table_get_ex_data(maat_instance, table_id, (char *)&key2);
+    ASSERT_TRUE(ud != NULL);
+    EXPECT_STREQ(ud->value, "Jinan");
+    EXPECT_EQ(ud->id, 3);
+    plugin_EX_free_cb(table_id, (void **)&ud, 0, NULL);
+}
+
 class IPPluginTable : public testing::Test
 {
 protected:
@@ -2380,6 +2482,7 @@ protected:
 
         g_logger = log_handle_create("./maat_framework_gtest.log", 0);
         assert(g_logger != NULL);
+        maat_options_set_deferred_load_on(opts);
         maat_options_set_logger(opts, g_logger);
         _shared_maat_instance = maat_new(opts, table_info_path);
         maat_options_free(opts);
diff --git a/test/maat_json.json b/test/maat_json.json
index e1cdcd9..4b8af6e 100644
--- a/test/maat_json.json
+++ b/test/maat_json.json
@@ -2441,6 +2441,24 @@
 				"3\tcccc\t11\t1"
             ]
         },
+        {
+            "table_name": "TEST_PLUGIN_EXDATA_TABLE",
+            "table_content": [
+                "1\tHeBei\tShijiazhuang\t1\t0",
+                "2\tHeNan\tZhengzhou\t1\t0",
+                "3\tShanDong\tJinan\t1\t0",
+                "4\tShanXi\tTaiyuan\t1\t0"
+            ]
+        },
+        {
+            "table_name": "TEST_PLUGIN_KEY_TYPE_TABLE",
+            "table_content": [
+                "1\t11111111\tShijiazhuang\t1\t0",
+                "2\t22222222\tZhengzhou\t1\t0",
+                "3\t33333333\tJinan\t1\t0",
+                "4\t44444444\tTaiyuan\t1\t0"
+            ]
+        },
         {
             "table_name": "TEST_EFFECTIVE_RANGE_TABLE",
             "table_content": [
diff --git a/test/table_info.conf b/test/table_info.conf
index 7ecbaee..6337cf6 100644
--- a/test/table_info.conf
+++ b/test/table_info.conf
@@ -148,6 +148,7 @@
         "valid_column":4,
         "custom": {
             "key":1,
+            "key_type":"pointer",
             "tag":3
         }
     },
@@ -191,6 +192,7 @@
         "valid_column":4,
         "custom": {
             "key":1,
+            "key_type":"integer",
             "tag":5
         }
     },
@@ -201,6 +203,7 @@
         "valid_column":4,
         "custom": {
             "key":2,
+            "key_type":"pointer",
             "tag":3,
             "foreign": [6,8]
         }
@@ -212,8 +215,8 @@
         "valid_column":4,
         "custom": {
             "key":2,
-            "tag":5,
-            "estimate_size": 1024
+            "key_type":"pointer",
+            "tag":5
         }
     },
     {
@@ -223,6 +226,7 @@
         "valid_column":14,
         "custom": {
             "key":2,
+            "key_type":"pointer",
             "tag":18
         }
     },
@@ -524,5 +528,16 @@
             "source_port":"VIRTUAL_PORT_SOURCE",
             "dest_port":"VIRTUAL_PORT_DESTINATION"
         }
+    },
+    {
+        "table_id":45,
+        "table_name":"TEST_PLUGIN_KEY_TYPE_TABLE",
+        "table_type":"plugin",
+        "valid_column":4,
+        "custom": {
+            "key":2,
+            "key_type":"integer",
+            "tag":5
+        }
     }
 ]
\ No newline at end of file