diff --git a/source/common/src/tglobal.c b/source/common/src/tglobal.c
index eef174ef5f..e7873fb269 100644
--- a/source/common/src/tglobal.c
+++ b/source/common/src/tglobal.c
@@ -41,8 +41,8 @@ bool    tsPrintAuth = false;
 
 // queue & threads
 int32_t tsNumOfRpcThreads = 1;
-int32_t tsNumOfRpcSessions = 5000;
-int32_t tsTimeToGetAvailableConn = 1000000;
+int32_t tsNumOfRpcSessions = 6000;
+int32_t tsTimeToGetAvailableConn = 500000;
 int32_t tsNumOfCommitThreads = 2;
 int32_t tsNumOfTaskQueueThreads = 4;
 int32_t tsNumOfMnodeQueryThreads = 4;