diff --git a/cache/src/tango_cache_client.cpp b/cache/src/tango_cache_client.cpp
index 54dd8b7..c87e885 100644
--- a/cache/src/tango_cache_client.cpp
+++ b/cache/src/tango_cache_client.cpp
@@ -340,7 +340,7 @@ struct tango_cache_ctx *tango_cache_update_prepare(struct tango_cache_instance *
 	{
 		snprintf(ctx->object_key, 256, "%s", meta->url);
 	}
-	if(wired_load_balancer_lookup(instance->wiredlb, meta->url, strlen(meta->url), ctx->hostaddr, 48))
+	if(wired_load_balancer_lookup(instance->wiredlb, ctx->object_key, strlen(ctx->object_key), ctx->hostaddr, 48))
 	{
 		instance->error_code = CACHE_ERR_WIREDLB;
 		instance->statistic.totaldrop_num += 1;
@@ -470,7 +470,7 @@ struct tango_cache_ctx *tango_cache_fetch_prepare(struct tango_cache_instance *i
 	{
 		snprintf(ctx->object_key, 256, "%s", meta->url);
 	}
-	if(wired_load_balancer_lookup(instance->wiredlb, meta->url, strlen(meta->url), ctx->hostaddr, 48))
+	if(wired_load_balancer_lookup(instance->wiredlb, ctx->object_key, strlen(ctx->object_key), ctx->hostaddr, 48))
 	{
 		instance->error_code = CACHE_ERR_WIREDLB;
 		instance->statistic.totaldrop_num += 1;
@@ -538,7 +538,7 @@ struct tango_cache_ctx *tango_cache_delete_prepare(struct tango_cache_instance *
 	{
 		snprintf(ctx->object_key, 256, "%s", objkey);
 	}
-	if(wired_load_balancer_lookup(instance->wiredlb, objkey, strlen(objkey), ctx->hostaddr, 48))
+	if(wired_load_balancer_lookup(instance->wiredlb, ctx->object_key, strlen(ctx->object_key), ctx->hostaddr, 48))
 	{
 		instance->error_code = CACHE_ERR_WIREDLB;
 		instance->statistic.totaldrop_num += 1;
@@ -779,8 +779,10 @@ static int load_local_configure(struct tango_cache_instance *instance, const cha
 	u_int32_t intval;
 	u_int64_t longval;
 
-	MESA_load_profile_uint_def(profile_path, section, "MAX_CONNECTION_PER_HOST", &intval, 0);
+	MESA_load_profile_uint_def(profile_path, section, "MAX_CONNECTION_PER_HOST", &intval, 1);
 	instance->max_cnn_host = intval;
+	MESA_load_profile_uint_def(profile_path, section, "MAX_CNNT_PIPELINE_NUM", &intval, 20);
+	instance->max_pipeline_num = intval;
 	MESA_load_profile_uint_def(profile_path, section, "MAX_CURL_SESSION_NUM", &instance->max_session_num, 200);
 	MESA_load_profile_uint_def(profile_path, section, "MAX_USED_MEMORY_SIZE_MB", &intval, 5120);
 	longval = intval;
@@ -858,6 +860,7 @@ struct tango_cache_instance *tango_cache_instance_new(struct event_base* evbase,
 	instance->multi_hd = curl_multi_init();
 	curl_multi_setopt(instance->multi_hd, CURLMOPT_PIPELINING, CURLPIPE_HTTP1 | CURLPIPE_MULTIPLEX);
 	curl_multi_setopt(instance->multi_hd, CURLMOPT_MAX_HOST_CONNECTIONS, instance->max_cnn_host); 
+	curl_multi_setopt(instance->multi_hd, CURLMOPT_MAX_PIPELINE_LENGTH, instance->max_pipeline_num); 
 	curl_multi_setopt(instance->multi_hd, CURLMOPT_SOCKETFUNCTION, curl_socket_function_cb);
 	curl_multi_setopt(instance->multi_hd, CURLMOPT_SOCKETDATA, instance); //curl_socket_function_cb *userp
 	curl_multi_setopt(instance->multi_hd, CURLMOPT_TIMERFUNCTION, curl_timer_function_cb);
diff --git a/cache/src/tango_cache_client_in.h b/cache/src/tango_cache_client_in.h
index 123a84d..d795b15 100644
--- a/cache/src/tango_cache_client_in.h
+++ b/cache/src/tango_cache_client_in.h
@@ -71,6 +71,7 @@ struct tango_cache_instance
 	u_int64_t cache_limit_size;
 	long max_cnn_host;
 	long transfer_timeout;//传输总时间限制
+	long max_pipeline_num;
 	u_int32_t max_session_num;
 	u_int32_t upload_block_size; //minio分段上传块的最小长度
 	enum CACHE_ERR_CODE error_code;