diff --git a/src/utils/workerPool.ts b/src/utils/workerPool.ts
index ebd00ef..fc785b0 100644
--- a/src/utils/workerPool.ts
+++ b/src/utils/workerPool.ts
@@ -104,12 +104,12 @@ export function initWorkerPool(initData: any): void {
   const threadCount = process.env.NS_THREAD_COUNT || os.cpus().length
   if (process.env.NS_THREAD_COUNT) {
     logger.Log(
-      `Setting thread count from enviroment variable NS_WORKER_COUNT: '${workerCount}'`,
+      `Setting thread count from enviroment variable NS_WORKER_COUNT: '${threadCount}'`,
       logger.GetColor('red')
     )
   }
 
-  for (let i = 0; i < workerCount; i++) {
+  for (let i = 0; i < threadCount; i++) {
     workers.push({
       worker: factory.create(i),
       index: i,
diff --git a/submodules/qmining-page b/submodules/qmining-page
index 3739153..21fdbb5 160000
--- a/submodules/qmining-page
+++ b/submodules/qmining-page
@@ -1 +1 @@
-Subproject commit 3739153e95c3f75c17422d89c5e229cb97cb4abe
+Subproject commit 21fdbb57a3c60516e157ac5d328fa720dc6c8516