diff --git a/src/UserGuide/Master/Table/Reference/System-Config-Manual.md b/src/UserGuide/Master/Table/Reference/System-Config-Manual.md
index dc99d8583..0088640ba 100644
--- a/src/UserGuide/Master/Table/Reference/System-Config-Manual.md
+++ b/src/UserGuide/Master/Table/Reference/System-Config-Manual.md
@@ -573,10 +573,10 @@ The `iotdb-system.properties` file contains various configurations for managing
 - cn_rpc_max_concurrent_client_num
 
 | Name        | cn_rpc_max_concurrent_client_num          |
-| ----------- | ----------------------------------------- |
+| ----------- |-------------------------------------------|
 | Description | Maximum number of concurrent RPC clients. |
-| Type        | Short Int : [0,65535]                     |
-| Default     | 65535                                     |
+| Type        | int                                       |
+| Default     | 3000                                      |
 | Effective   | Restart required.                         |
 
 - cn_connection_timeout_ms
diff --git a/src/UserGuide/Master/Tree/Reference/ConfigNode-Config-Manual.md b/src/UserGuide/Master/Tree/Reference/ConfigNode-Config-Manual.md
index 5203166af..56a771e76 100644
--- a/src/UserGuide/Master/Tree/Reference/ConfigNode-Config-Manual.md
+++ b/src/UserGuide/Master/Tree/Reference/ConfigNode-Config-Manual.md
@@ -159,11 +159,11 @@ The global configuration of cluster is in ConfigNode.
 * cn\_rpc\_max\_concurrent\_client\_num
 
 |Name| cn\_rpc\_max\_concurrent\_client\_num |
-|:---:|:---|
-|Description| Max concurrent rpc connections|
-|Type| Short Int : [0,65535] |
-|Description| 65535 |
-|Effective|After restarting system|
+|:---:|:--------------------------------------|
+|Description| Max concurrent rpc connections        |
+|Type| int                                   |
+|Description| 3000                                  |
+|Effective| After restarting system               |
 
 * cn\_thrift\_max\_frame\_size
 
diff --git a/src/UserGuide/V1.3.x/Reference/ConfigNode-Config-Manual.md b/src/UserGuide/V1.3.x/Reference/ConfigNode-Config-Manual.md
index 80c2cbaf7..ef01843c3 100644
--- a/src/UserGuide/V1.3.x/Reference/ConfigNode-Config-Manual.md
+++ b/src/UserGuide/V1.3.x/Reference/ConfigNode-Config-Manual.md
@@ -159,11 +159,11 @@ The global configuration of cluster is in ConfigNode.
 * cn\_rpc\_max\_concurrent\_client\_num
 
 |Name| cn\_rpc\_max\_concurrent\_client\_num |
-|:---:|:---|
-|Description| Max concurrent rpc connections|
-|Type| Short Int : [0,65535] |
-|Description| 65535 |
-|Effective|After restarting system|
+|:---:|:--------------------------------------|
+|Description| Max concurrent rpc connections        |
+|Type| int                                   |
+|Description| 3000                                  |
+|Effective| After restarting system               |
 
 * cn\_thrift\_max\_frame\_size
 
diff --git a/src/UserGuide/dev-1.3/Reference/ConfigNode-Config-Manual.md b/src/UserGuide/dev-1.3/Reference/ConfigNode-Config-Manual.md
index 80c2cbaf7..ef01843c3 100644
--- a/src/UserGuide/dev-1.3/Reference/ConfigNode-Config-Manual.md
+++ b/src/UserGuide/dev-1.3/Reference/ConfigNode-Config-Manual.md
@@ -159,11 +159,11 @@ The global configuration of cluster is in ConfigNode.
 * cn\_rpc\_max\_concurrent\_client\_num
 
 |Name| cn\_rpc\_max\_concurrent\_client\_num |
-|:---:|:---|
-|Description| Max concurrent rpc connections|
-|Type| Short Int : [0,65535] |
-|Description| 65535 |
-|Effective|After restarting system|
+|:---:|:--------------------------------------|
+|Description| Max concurrent rpc connections        |
+|Type| int                                   |
+|Description| 3000                                  |
+|Effective| After restarting system               |
 
 * cn\_thrift\_max\_frame\_size
 
diff --git a/src/UserGuide/latest-Table/Reference/System-Config-Manual.md b/src/UserGuide/latest-Table/Reference/System-Config-Manual.md
index dc99d8583..0088640ba 100644
--- a/src/UserGuide/latest-Table/Reference/System-Config-Manual.md
+++ b/src/UserGuide/latest-Table/Reference/System-Config-Manual.md
@@ -573,10 +573,10 @@ The `iotdb-system.properties` file contains various configurations for managing
 - cn_rpc_max_concurrent_client_num
 
 | Name        | cn_rpc_max_concurrent_client_num          |
-| ----------- | ----------------------------------------- |
+| ----------- |-------------------------------------------|
 | Description | Maximum number of concurrent RPC clients. |
-| Type        | Short Int : [0,65535]                     |
-| Default     | 65535                                     |
+| Type        | int                                       |
+| Default     | 3000                                      |
 | Effective   | Restart required.                         |
 
 - cn_connection_timeout_ms
diff --git a/src/UserGuide/latest/Reference/ConfigNode-Config-Manual.md b/src/UserGuide/latest/Reference/ConfigNode-Config-Manual.md
index 5203166af..56a771e76 100644
--- a/src/UserGuide/latest/Reference/ConfigNode-Config-Manual.md
+++ b/src/UserGuide/latest/Reference/ConfigNode-Config-Manual.md
@@ -159,11 +159,11 @@ The global configuration of cluster is in ConfigNode.
 * cn\_rpc\_max\_concurrent\_client\_num
 
 |Name| cn\_rpc\_max\_concurrent\_client\_num |
-|:---:|:---|
-|Description| Max concurrent rpc connections|
-|Type| Short Int : [0,65535] |
-|Description| 65535 |
-|Effective|After restarting system|
+|:---:|:--------------------------------------|
+|Description| Max concurrent rpc connections        |
+|Type| int                                   |
+|Description| 3000                                  |
+|Effective| After restarting system               |
 
 * cn\_thrift\_max\_frame\_size
 
diff --git a/src/zh/UserGuide/Master/Table/Reference/System-Config-Manual.md b/src/zh/UserGuide/Master/Table/Reference/System-Config-Manual.md
index 8dff8e77c..8a17b5d29 100644
--- a/src/zh/UserGuide/Master/Table/Reference/System-Config-Manual.md
+++ b/src/zh/UserGuide/Master/Table/Reference/System-Config-Manual.md
@@ -550,11 +550,11 @@ IoTDB 配置文件位于 IoTDB 安装目录：`conf`文件夹下。
 - cn_rpc_max_concurrent_client_num
 
 | 名字         | cn_rpc_max_concurrent_client_num |
-| ------------ | -------------------------------- |
-| 描述         | 最大连接数。                     |
-| 类型         | Short Int : [0,65535]            |
-| 默认值       | 65535                            |
-| 改后生效方式 | 重启服务生效                     |
+| ------------ |----------------------------------|
+| 描述         | 最大连接数。                           |
+| 类型         | int                              |
+| 默认值       | 3000                             |
+| 改后生效方式 | 重启服务生效                           |
 
 - cn_connection_timeout_ms 
 
diff --git a/src/zh/UserGuide/Master/Tree/Reference/ConfigNode-Config-Manual.md b/src/zh/UserGuide/Master/Tree/Reference/ConfigNode-Config-Manual.md
index 873e4aebc..467bebfaf 100644
--- a/src/zh/UserGuide/Master/Tree/Reference/ConfigNode-Config-Manual.md
+++ b/src/zh/UserGuide/Master/Tree/Reference/ConfigNode-Config-Manual.md
@@ -149,8 +149,8 @@ IoTDB 集群的全局配置通过 ConfigNode 配置。
 |   名字   | cn\_rpc\_max\_concurrent\_client\_num |
 |:------:|:--------------------------------------|
 |   描述   | 最大连接数。                                |
-|   类型   | Short Int : [0,65535]                 |
-|  默认值   | 65535                                 |
+|   类型   | int                                   |
+|  默认值   | 3000                                  |
 | 改后生效方式 | 重启服务生效                                |
 
 * cn\_thrift\_max\_frame\_size
diff --git a/src/zh/UserGuide/V1.3.x/Reference/ConfigNode-Config-Manual.md b/src/zh/UserGuide/V1.3.x/Reference/ConfigNode-Config-Manual.md
index 4e08f9e01..2603ee642 100644
--- a/src/zh/UserGuide/V1.3.x/Reference/ConfigNode-Config-Manual.md
+++ b/src/zh/UserGuide/V1.3.x/Reference/ConfigNode-Config-Manual.md
@@ -149,8 +149,8 @@ IoTDB 集群的全局配置通过 ConfigNode 配置。
 |   名字   | cn\_rpc\_max\_concurrent\_client\_num |
 |:------:|:--------------------------------------|
 |   描述   | 最大连接数。                                |
-|   类型   | Short Int : [0,65535]                 |
-|  默认值   | 65535                                 |
+|   类型   | int                                   |
+|  默认值   | 3000                                  |
 | 改后生效方式 | 重启服务生效                                |
 
 * cn\_thrift\_max\_frame\_size
diff --git a/src/zh/UserGuide/dev-1.3/Reference/ConfigNode-Config-Manual.md b/src/zh/UserGuide/dev-1.3/Reference/ConfigNode-Config-Manual.md
index 4e08f9e01..2603ee642 100644
--- a/src/zh/UserGuide/dev-1.3/Reference/ConfigNode-Config-Manual.md
+++ b/src/zh/UserGuide/dev-1.3/Reference/ConfigNode-Config-Manual.md
@@ -149,8 +149,8 @@ IoTDB 集群的全局配置通过 ConfigNode 配置。
 |   名字   | cn\_rpc\_max\_concurrent\_client\_num |
 |:------:|:--------------------------------------|
 |   描述   | 最大连接数。                                |
-|   类型   | Short Int : [0,65535]                 |
-|  默认值   | 65535                                 |
+|   类型   | int                                   |
+|  默认值   | 3000                                  |
 | 改后生效方式 | 重启服务生效                                |
 
 * cn\_thrift\_max\_frame\_size
diff --git a/src/zh/UserGuide/latest-Table/Reference/System-Config-Manual.md b/src/zh/UserGuide/latest-Table/Reference/System-Config-Manual.md
index aeabeccc1..ba1f6b221 100644
--- a/src/zh/UserGuide/latest-Table/Reference/System-Config-Manual.md
+++ b/src/zh/UserGuide/latest-Table/Reference/System-Config-Manual.md
@@ -550,11 +550,11 @@ IoTDB 配置文件位于 IoTDB 安装目录：`conf`文件夹下。
 - cn_rpc_max_concurrent_client_num
 
 | 名字         | cn_rpc_max_concurrent_client_num |
-| ------------ | -------------------------------- |
-| 描述         | 最大连接数。                     |
-| 类型         | Short Int : [0,65535]            |
-| 默认值       | 65535                            |
-| 改后生效方式 | 重启服务生效                     |
+| ------------ |---------------------------------|
+| 描述         | 最大连接数。                          |
+| 类型         | int                             |
+| 默认值       | 3000                            |
+| 改后生效方式 | 重启服务生效                          |
 
 - cn_connection_timeout_ms 
 
diff --git a/src/zh/UserGuide/latest/Reference/ConfigNode-Config-Manual.md b/src/zh/UserGuide/latest/Reference/ConfigNode-Config-Manual.md
index 873e4aebc..467bebfaf 100644
--- a/src/zh/UserGuide/latest/Reference/ConfigNode-Config-Manual.md
+++ b/src/zh/UserGuide/latest/Reference/ConfigNode-Config-Manual.md
@@ -149,8 +149,8 @@ IoTDB 集群的全局配置通过 ConfigNode 配置。
 |   名字   | cn\_rpc\_max\_concurrent\_client\_num |
 |:------:|:--------------------------------------|
 |   描述   | 最大连接数。                                |
-|   类型   | Short Int : [0,65535]                 |
-|  默认值   | 65535                                 |
+|   类型   | int                                   |
+|  默认值   | 3000                                  |
 | 改后生效方式 | 重启服务生效                                |
 
 * cn\_thrift\_max\_frame\_size