diff --git a/dolphinscheduler-server/src/main/resources/master.properties b/dolphinscheduler-server/src/main/resources/master.properties
index fbe8f6e2a6..1ebe9c68d2 100644
--- a/dolphinscheduler-server/src/main/resources/master.properties
+++ b/dolphinscheduler-server/src/main/resources/master.properties
@@ -18,12 +18,9 @@
 # master listen port
 #master.listen.port=5678
 
-# master execute thread number to limit process instances in parallel
+# Number of process instances executed in parallel
 #master.exec.threads=100
 
-# master execute task number in parallel per process instance
-#master.exec.task.num=20
-
 # master dispatch task number per batch
 #master.dispatch.task.num=3