diff --git a/cache/src/tango_cache_pending.cpp b/cache/src/tango_cache_pending.cpp
index 22a42b3..30fe9db 100644
--- a/cache/src/tango_cache_pending.cpp
+++ b/cache/src/tango_cache_pending.cpp
@@ -234,9 +234,8 @@ void get_response_freshness(const struct tfe_http_half *response, struct respons
         freshness->date = absolute_to_relative_time(field_value);;
     }
     field_value = tfe_http_std_field_read(response, TFE_HTTP_LAST_MODIFIED);
-    if (field_value != NULL)
+    if (field_value != NULL && is_standard_gmt_format(field_value))
     {
-        assert(is_standard_gmt_format(field_value));
         freshness->last_modified = absolute_to_relative_time(field_value);;
     }
 }
diff --git a/plugin/business/pangu-http/src/pangu_web_cache.cpp b/plugin/business/pangu-http/src/pangu_web_cache.cpp
index 19d71b4..135f84b 100644
--- a/plugin/business/pangu-http/src/pangu_web_cache.cpp
+++ b/plugin/business/pangu-http/src/pangu_web_cache.cpp
@@ -142,20 +142,20 @@ void cache_stat_init(struct cache_handle* cache)
 
 	struct cache_stat_sepc spec[__CACHE_STAT_MAX];
 	
-	set_stat_spec(&spec[STAT_CACHE_QUERY], "cache_query",FS_STYLE_FIELD, FS_CALC_CURRENT);
-	set_stat_spec(&spec[STAT_CACHE_QUERY_NOT_APPLICABLE], "qry_not_allow",FS_STYLE_FIELD, FS_CALC_CURRENT);
+	set_stat_spec(&spec[STAT_CACHE_QUERY], "cache_get",FS_STYLE_FIELD, FS_CALC_CURRENT);
+	set_stat_spec(&spec[STAT_CACHE_QUERY_NOT_APPLICABLE], "get_not_allow",FS_STYLE_FIELD, FS_CALC_CURRENT);
 	set_stat_spec(&spec[STAT_CACHE_QUERY_HIT], "hit_num",FS_STYLE_FIELD, FS_CALC_CURRENT);
 	set_stat_spec(&spec[STAT_CACHE_QUERY_BYTES], "downloaded(MB)",FS_STYLE_FIELD, FS_CALC_CURRENT);
 	set_stat_spec(&spec[STAT_CACHE_OVERRIDE_QUERY], "or_qry",FS_STYLE_FIELD, FS_CALC_CURRENT);
 	set_stat_spec(&spec[STAT_CACHE_OVERRIDE_HIT], "or_hit",FS_STYLE_FIELD, FS_CALC_CURRENT);
 	set_stat_spec(&spec[STAT_CACHE_OVERRIDE_BYTES], "or_download(MB)",FS_STYLE_FIELD, FS_CALC_CURRENT);
-	set_stat_spec(&spec[STAT_CACHE_QUERY_ERR], "query_err",FS_STYLE_STATUS, FS_CALC_CURRENT);
-	set_stat_spec(&spec[STAT_CACHE_UPLOAD_CNT], "cache_upload",FS_STYLE_FIELD, FS_CALC_CURRENT);
-	set_stat_spec(&spec[STAT_CACHE_UPLOAD_OVERRIDE], "or_upload",FS_STYLE_FIELD, FS_CALC_CURRENT);
-	set_stat_spec(&spec[STAT_CACHE_UPLOAD_FORBIDEN], "upload_forbid",FS_STYLE_FIELD, FS_CALC_CURRENT);
-	set_stat_spec(&spec[STAT_CACHE_UPLOAD_ABANDON], "upload_abandon",FS_STYLE_FIELD, FS_CALC_CURRENT);
-	set_stat_spec(&spec[STAT_CACHE_UPLOAD_ERR], "upload_err",FS_STYLE_STATUS, FS_CALC_CURRENT);
-	set_stat_spec(&spec[STAT_CACHE_UPLOAD_BYTES], "uploaded(MB)",FS_STYLE_FIELD, FS_CALC_CURRENT);
+	set_stat_spec(&spec[STAT_CACHE_QUERY_ERR], "get_err",FS_STYLE_STATUS, FS_CALC_CURRENT);
+	set_stat_spec(&spec[STAT_CACHE_UPLOAD_CNT], "cache_put",FS_STYLE_FIELD, FS_CALC_CURRENT);
+	set_stat_spec(&spec[STAT_CACHE_UPLOAD_OVERRIDE], "or_put",FS_STYLE_FIELD, FS_CALC_CURRENT);
+	set_stat_spec(&spec[STAT_CACHE_UPLOAD_FORBIDEN], "put_forbid",FS_STYLE_FIELD, FS_CALC_CURRENT);
+	set_stat_spec(&spec[STAT_CACHE_UPLOAD_ABANDON], "put_abandon",FS_STYLE_FIELD, FS_CALC_CURRENT);
+	set_stat_spec(&spec[STAT_CACHE_UPLOAD_ERR], "put_err",FS_STYLE_STATUS, FS_CALC_CURRENT);
+	set_stat_spec(&spec[STAT_CACHE_UPLOAD_BYTES], "put(MB)",FS_STYLE_FIELD, FS_CALC_CURRENT);
 	set_stat_spec(&spec[STAT_CACHE_MEMORY], "used_mem(MB)",FS_STYLE_STATUS, FS_CALC_CURRENT);
 	set_stat_spec(&spec[STAT_CACHE_ACTIVE_SESSION], "active_sess",FS_STYLE_STATUS, FS_CALC_CURRENT);