diff --git a/samples/skywalking-example/account-application/account-impl/src/main/resources/sky-walking.auth b/samples/skywalking-example/account-application/account-impl/src/main/resources/sky-walking.auth
index d823de6c2..aaf68d0e9 100644
--- a/samples/skywalking-example/account-application/account-impl/src/main/resources/sky-walking.auth
+++ b/samples/skywalking-example/account-application/account-impl/src/main/resources/sky-walking.auth
@@ -11,7 +11,7 @@ buriedpoint.max_exception_stack_length=4000
 buriedpoint.businesskey_max_length=300
 
 #发送的最大长度
-sender.max_sender_length=8000
+sender.max_send_length=20000
 #最大发送者的连接数阀比例
 sender.connect_percent=100
 #当没有Sender时,尝试获取sender的等待周期
diff --git a/samples/skywalking-example/mail-application/src/main/resources/sky-walking.auth b/samples/skywalking-example/mail-application/src/main/resources/sky-walking.auth
index f6eab8a5f..e272a1dd8 100644
--- a/samples/skywalking-example/mail-application/src/main/resources/sky-walking.auth
+++ b/samples/skywalking-example/mail-application/src/main/resources/sky-walking.auth
@@ -11,7 +11,7 @@ buriedpoint.max_exception_stack_length=4000
 buriedpoint.businesskey_max_length=300
 
 #发送的最大长度
-sender.max_sender_length=8000
+sender.max_send_length=20000
 #最大发送者的连接数阀比例
 sender.connect_percent=100
 #当没有Sender时,尝试获取sender的等待周期
diff --git a/samples/skywalking-example/order-application/order-impl/src/main/resources/sky-walking.auth b/samples/skywalking-example/order-application/order-impl/src/main/resources/sky-walking.auth
index 41ff25cf5..1cddb90f2 100644
--- a/samples/skywalking-example/order-application/order-impl/src/main/resources/sky-walking.auth
+++ b/samples/skywalking-example/order-application/order-impl/src/main/resources/sky-walking.auth
@@ -11,7 +11,7 @@ buriedpoint.max_exception_stack_length=4000
 buriedpoint.businesskey_max_length=300
 
 #发送的最大长度
-sender.max_sender_length=8000
+sender.max_send_length=20000
 #最大发送者的连接数阀比例
 sender.connect_percent=100
 #当没有Sender时,尝试获取sender的等待周期
diff --git a/samples/skywalking-example/resources-application/resource-impl/src/main/resources/sky-walking.auth b/samples/skywalking-example/resources-application/resource-impl/src/main/resources/sky-walking.auth
index 90a29fb5e..eabc5ffc1 100644
--- a/samples/skywalking-example/resources-application/resource-impl/src/main/resources/sky-walking.auth
+++ b/samples/skywalking-example/resources-application/resource-impl/src/main/resources/sky-walking.auth
@@ -11,7 +11,7 @@ buriedpoint.max_exception_stack_length=4000
 buriedpoint.businesskey_max_length=300
 
 #发送的最大长度
-sender.max_sender_length=8000
+sender.max_send_length=20000
 #最大发送者的连接数阀比例
 sender.connect_percent=100
 #当没有Sender时,尝试获取sender的等待周期
diff --git a/samples/skywalking-example/web-application/src/main/resources/sky-walking.auth b/samples/skywalking-example/web-application/src/main/resources/sky-walking.auth
index e3055a355..6e4e8dda4 100644
--- a/samples/skywalking-example/web-application/src/main/resources/sky-walking.auth
+++ b/samples/skywalking-example/web-application/src/main/resources/sky-walking.auth
@@ -11,7 +11,7 @@ buriedpoint.max_exception_stack_length=4000
 buriedpoint.businesskey_max_length=300
 
 #发送的最大长度
-sender.max_sender_length=8000
+sender.max_send_length=20000
 #最大发送者的连接数阀比例
 sender.connect_percent=100
 #当没有Sender时,尝试获取sender的等待周期