diff --git a/source/common/src/tglobal.c b/source/common/src/tglobal.c
index 5b3993dd40..ab5ce3742a 100644
--- a/source/common/src/tglobal.c
+++ b/source/common/src/tglobal.c
@@ -418,7 +418,7 @@ static int32_t taosAddServerCfg(SConfig *pCfg) {
   if (cfgAddInt32(pCfg, "numOfMnodeReadThreads", tsNumOfMnodeReadThreads, 1, 1024, 0) != 0) return -1;
 
   tsNumOfVnodeQueryThreads = tsNumOfCores / 2;
-  tsNumOfVnodeQueryThreads = TMAX(tsNumOfVnodeQueryThreads, 1);
+  tsNumOfVnodeQueryThreads = TMAX(tsNumOfVnodeQueryThreads, 2);
   if (cfgAddInt32(pCfg, "numOfVnodeQueryThreads", tsNumOfVnodeQueryThreads, 1, 1024, 0) != 0) return -1;
 
   tsNumOfVnodeFetchThreads = TRANGE(tsNumOfVnodeFetchThreads, 1, 1);
diff --git a/source/util/src/tworker.c b/source/util/src/tworker.c
index 68f96c0385..88bd36f0cb 100644
--- a/source/util/src/tworker.c
+++ b/source/util/src/tworker.c
@@ -39,7 +39,7 @@ int32_t tQWorkerInit(SQWorkerPool *pool) {
     worker->pool = pool;
   }
 
-  uDebug("worker:%s is initialized, min:%d max:%d", pool->name, pool->min, pool->max);
+  uInfo("worker:%s is initialized, min:%d max:%d", pool->name, pool->min, pool->max);
   return 0;
 }