diff --git a/cache/src/cache_evbase_client.cpp b/cache/src/cache_evbase_client.cpp
index e7835ef..bf849e2 100644
--- a/cache/src/cache_evbase_client.cpp
+++ b/cache/src/cache_evbase_client.cpp
@@ -473,7 +473,7 @@ int cache_evbase_upload_once_evbuf(struct cache_evbase_instance *instance, struc
 	buffer->ctx_asyn = ctx_asyn;
 	buffer->cmd_type = CACHE_ASYN_UPLOAD_ONCE_EVBUF;	
 	buffer->evbuf = evbuffer_new();
-	evbuffer_add_buffer(buffer->evbuf, evbuf);
+	evbuffer_add_buffer_reference(buffer->evbuf, evbuf);
 
 	if(iothread_notify_event(instance->notify_sendfd, &buffer, sizeof(void *), 2) != sizeof(void *))
 	{
diff --git a/cache/src/tango_cache_transfer.cpp b/cache/src/tango_cache_transfer.cpp
index 1b42ce7..e8b4cfc 100644
--- a/cache/src/tango_cache_transfer.cpp
+++ b/cache/src/tango_cache_transfer.cpp
@@ -114,7 +114,7 @@ static size_t curl_put_multipart_send_cb(void *ptr, size_t size, size_t count, v
 static int http_put_bodypart_request_evbuf(struct tango_cache_ctx *ctx, bool full)
 {
 	UNUSED CURLMcode rc;
-	char minio_url[256], buffer[256];
+	char minio_url[256]={0}, buffer[256]={0};
 
 	if(NULL == (ctx->curl=curl_easy_init())) 
 	{
diff --git a/plugin/business/pangu-http/src/pangu_http.cpp b/plugin/business/pangu-http/src/pangu_http.cpp
index 86a07ba..f55c170 100644
--- a/plugin/business/pangu-http/src/pangu_http.cpp
+++ b/plugin/business/pangu-http/src/pangu_http.cpp
@@ -1532,7 +1532,7 @@ static void http_get_client_id(const struct tfe_stream * stream, char *replace_r
 
 	tfe_stream_addr_str_split((char *)stream->str_stream_info, &sip, &sport, &dip, &dport);
 
-	snprintf(replace_regex, TFE_SYMBOL_MAX, "%s=%s", "source_ip", sip);
+	snprintf(replace_regex, TFE_SYMBOL_MAX, "%s", sip);
 }
 
 static void http_get_subscriber_id(const struct tfe_stream * stream, char *replace_regex)
@@ -1549,7 +1549,7 @@ static void http_get_subscriber_id(const struct tfe_stream * stream, char *repla
             TFE_LOG_ERROR(g_pangu_rt->local_logger, "fetch src sub id from cmsg failed, ret: %d addr: %s", ret, stream->str_stream_info);
         }
     }
-	snprintf(replace_regex, TFE_SYMBOL_MAX, "%s=%s", "user_id", source_subscribe_id);
+	snprintf(replace_regex, TFE_SYMBOL_MAX, "%s", source_subscribe_id);
 }
 
 static int http_decoder_url(const struct tfe_stream * stream, char *rd_url, int profile_id, char **rewrite_uri)
@@ -1558,7 +1558,7 @@ static int http_decoder_url(const struct tfe_stream * stream, char *rd_url, int
 	char replace_with[TFE_SYMBOL_MAX]={0};
 	struct replace_rule *rule;
 
-	if(strstr(rd_url, "policy_id")==NULL && strstr(rd_url, "user_id")==NULL && strstr(rd_url, "source_ip")==NULL)
+	if(strstr(rd_url, "tsg_policy_id")==NULL && strstr(rd_url, "tsg_subscriber_id")==NULL && strstr(rd_url, "tsg_client_ip")==NULL)
 	{
 		return 0;
 	}
@@ -1566,21 +1566,21 @@ static int http_decoder_url(const struct tfe_stream * stream, char *rd_url, int
 	rule = ALLOC(struct replace_rule, 3);
 	n_rule=0;
 	rule[n_rule].zone = kZoneRequestUri;
-	rule[n_rule].find = tfe_strdup("policy_id={{tsg_policy_id}}");
-	snprintf(replace_with, TFE_SYMBOL_MAX, "policy_id=%d", profile_id);
+	rule[n_rule].find = tfe_strdup("{{tsg_policy_id}}");
+	snprintf(replace_with, TFE_SYMBOL_MAX, "%d", profile_id);
 	rule[n_rule].replace_with = tfe_strdup(replace_with);
 
 	n_rule=1;
 	memset(replace_with, TFE_SYMBOL_MAX, 0);
 	rule[n_rule].zone = kZoneRequestUri;
-	rule[n_rule].find = tfe_strdup("user_id={{tsg_subscriber_id}}");
+	rule[n_rule].find = tfe_strdup("{{tsg_subscriber_id}}");
 	http_get_subscriber_id(stream, replace_with);
 	rule[n_rule].replace_with = tfe_strdup(replace_with);
 
 	n_rule=2;
 	memset(replace_with, TFE_SYMBOL_MAX, 0);
 	rule[n_rule].zone = kZoneRequestUri;
-	rule[n_rule].find = tfe_strdup("source_ip={{tsg_client_ip}}");
+	rule[n_rule].find = tfe_strdup("{{tsg_client_ip}}");
 	http_get_client_id(stream, replace_with);
 	rule[n_rule].replace_with = tfe_strdup(replace_with);
 
diff --git a/plugin/business/pangu-http/src/pangu_logger.cpp b/plugin/business/pangu-http/src/pangu_logger.cpp
index 46185d0..e02493a 100644
--- a/plugin/business/pangu-http/src/pangu_logger.cpp
+++ b/plugin/business/pangu-http/src/pangu_logger.cpp
@@ -284,6 +284,9 @@ int pangu_send_log(struct pangu_logger* handle, const struct pangu_log* log_msg)
 		}
 		if(log_msg->resp_body!=NULL)
 		{
+			memset(log_file_upload_path, 0, sizeof(log_file_upload_path));
+			memset(cont_type_whole, 0, sizeof(cont_type_whole));
+
 			memset(&meta, 0, sizeof(meta));
 			asprintf(&log_file_key, "%s.respbody", http->req->req_spec.url);
 			meta.url=log_file_key;
diff --git a/plugin/business/pangu-http/src/test_pattern_replace.cpp b/plugin/business/pangu-http/src/test_pattern_replace.cpp
index c993b06..6885661 100644
--- a/plugin/business/pangu-http/src/test_pattern_replace.cpp
+++ b/plugin/business/pangu-http/src/test_pattern_replace.cpp
@@ -186,7 +186,7 @@ TEST(PatternReplace, UrlReplace)
 
 	const char *rd_url = "http://www.example.com/query?pageid=12345&policy_id={{tsg_policy_id}}&user_id={{tsg_subscriber_id}}&source_ip={{tsg_client_ip}}";
 
-	if(strstr(rd_url, "policy_id")==NULL && strstr(rd_url, "user_id")==NULL && strstr(rd_url, "source_ip")==NULL)
+	if(strstr(rd_url, "tsg_policy_id")==NULL && strstr(rd_url, "tsg_subscriber_id")==NULL && strstr(rd_url, "tsg_client_ip")==NULL)
 	{
 		return;
 	}
@@ -194,21 +194,21 @@ TEST(PatternReplace, UrlReplace)
 	rule = ALLOC(struct replace_rule, 3);
 	n_rule=0;
 	rule[n_rule].zone = kZoneRequestUri;
-	rule[n_rule].find = tfe_strdup("policy_id={{tsg_policy_id}}");
-	snprintf(replace_with, TFE_SYMBOL_MAX, "policy_id=%d", 23);
+	rule[n_rule].find = tfe_strdup("{{tsg_policy_id}}");
+	snprintf(replace_with, TFE_SYMBOL_MAX, "%d", 23);
 	rule[n_rule].replace_with = tfe_strdup(replace_with);
 
 	n_rule=1;
 	memset(replace_with, TFE_SYMBOL_MAX, 0);
 	rule[n_rule].zone = kZoneRequestUri;
-	rule[n_rule].find = tfe_strdup("user_id={{tsg_subscriber_id}}");
-	rule[n_rule].replace_with = tfe_strdup("user_id=te&st01");
+	rule[n_rule].find = tfe_strdup("{{tsg_subscriber_id}}");
+	rule[n_rule].replace_with = tfe_strdup("te&st01");
 
 	n_rule=2;
 	memset(replace_with, TFE_SYMBOL_MAX, 0);
 	rule[n_rule].zone = kZoneRequestUri;
-	rule[n_rule].find = tfe_strdup("source_ip={{tsg_client_ip}}");
-	rule[n_rule].replace_with = tfe_strdup("source_ip=192.168.50.71");
+	rule[n_rule].find = tfe_strdup("{{tsg_client_ip}}");
+	rule[n_rule].replace_with = tfe_strdup("192.168.50.71");
 
 	size_t rewrite_uri_sz = execute_replace_rule(rd_url, strlen(rd_url), kZoneRequestUri, rule, n_rule+1, &rewrite_uri, 1);