diff --git a/src/UserGuide/Master/Table/API/Programming-JDBC_apache.md b/src/UserGuide/Master/Table/API/Programming-JDBC_apache.md
index 118e509f0..3c05aeb12 100644
--- a/src/UserGuide/Master/Table/API/Programming-JDBC_apache.md
+++ b/src/UserGuide/Master/Table/API/Programming-JDBC_apache.md
@@ -71,6 +71,7 @@ Add the following dependency to your Maven `pom.xml` file:
 ```Java
 String url = "jdbc:iotdb://127.0.0.1:6667?sql_dialect=table";
 ```
+When connecting to a cluster via JDBC, configuring the URL with any one node in the cluster is sufficient.
 
 You can find the full example code at [GitHub Repository](https://github.com/apache/iotdb/blob/master/example/jdbc/src/main/java/org/apache/iotdb/TableModelJDBCExample.java).
 
diff --git a/src/UserGuide/Master/Table/API/Programming-JDBC_timecho.md b/src/UserGuide/Master/Table/API/Programming-JDBC_timecho.md
index 188e0721b..06b95845c 100644
--- a/src/UserGuide/Master/Table/API/Programming-JDBC_timecho.md
+++ b/src/UserGuide/Master/Table/API/Programming-JDBC_timecho.md
@@ -71,6 +71,7 @@ Add the following dependency to your Maven `pom.xml` file:
 ```Java
 String url = "jdbc:iotdb://127.0.0.1:6667?sql_dialect=table";
 ```
+When connecting to a cluster via JDBC, configuring the URL with any one node in the cluster is sufficient.
 
 You can find the full example code at [GitHub Repository](https://github.com/apache/iotdb/blob/master/example/jdbc/src/main/java/org/apache/iotdb/TableModelJDBCExample.java).
 
diff --git a/src/UserGuide/Master/Tree/API/Programming-JDBC.md b/src/UserGuide/Master/Tree/API/Programming-JDBC.md
index b83c2865b..2b74edff5 100644
--- a/src/UserGuide/Master/Tree/API/Programming-JDBC.md
+++ b/src/UserGuide/Master/Tree/API/Programming-JDBC.md
@@ -212,6 +212,8 @@ String url = "jdbc:iotdb://127.0.0.1:6667?version=V_1_0";
 The parameter `version` represents the SQL semantic version used by the client, which is used in order to be compatible with the SQL semantics of `0.12` when upgrading to `0.13`. 
 The possible values are: `V_0_12`, `V_0_13`, `V_1_0`.
 
+When connecting to a cluster via JDBC, configuring the URL with any one node in the cluster is sufficient.
+
 In addition, IoTDB provides additional interfaces in JDBC for users to read and write the database using different character sets (e.g., GB18030) in the connection.
 The default character set for IoTDB is UTF-8. When users want to use a character set other than UTF-8, they need to specify the charset property in the JDBC connection. For example:
 1. Create a connection using the GB18030 charset:
diff --git a/src/UserGuide/Master/Tree/User-Manual/User-defined-function_apache.md b/src/UserGuide/Master/Tree/User-Manual/User-defined-function_apache.md
index 2d3d56cf3..d6942dea7 100644
--- a/src/UserGuide/Master/Tree/User-Manual/User-defined-function_apache.md
+++ b/src/UserGuide/Master/Tree/User-Manual/User-defined-function_apache.md
@@ -97,7 +97,7 @@ CREATE FUNCTION <UDF-NAME> AS <UDF-CLASS-FULL-PATHNAME> (USING URI URI-STRING)
 ####  Method 1: Manually place the jar package
 
 Prepare:   
-When registering using this method, it is necessary to place the JAR package in advance in the `ext/udf` directory of all nodes in the cluster (which can be configured).
+When registering using this method, it is necessary to place the JAR package in advance in the `ext/udf` directory of **all nodes in the cluster** (which can be configured).
 
 Registration statement:
 
diff --git a/src/UserGuide/Master/Tree/User-Manual/User-defined-function_timecho.md b/src/UserGuide/Master/Tree/User-Manual/User-defined-function_timecho.md
index 368138332..db69a7925 100644
--- a/src/UserGuide/Master/Tree/User-Manual/User-defined-function_timecho.md
+++ b/src/UserGuide/Master/Tree/User-Manual/User-defined-function_timecho.md
@@ -98,7 +98,7 @@ CREATE FUNCTION <UDF-NAME> AS <UDF-CLASS-FULL-PATHNAME> (USING URI URI-STRING)
 ####  Method 1: Manually place the jar package
 
 Prepare:   
-When registering using this method, it is necessary to place the JAR package in advance in the `ext/udf` directory of all nodes in the cluster (which can be configured).
+When registering using this method, it is necessary to place the JAR package in advance in the `ext/udf` directory of **all nodes in the cluster** (which can be configured).
 
 Registration statement:
 
diff --git a/src/UserGuide/V1.3.x/API/Programming-JDBC.md b/src/UserGuide/V1.3.x/API/Programming-JDBC.md
index 09766d01b..36f69fd5c 100644
--- a/src/UserGuide/V1.3.x/API/Programming-JDBC.md
+++ b/src/UserGuide/V1.3.x/API/Programming-JDBC.md
@@ -207,6 +207,7 @@ The parameter `version` can be used in the url:
 ```java
 String url = "jdbc:iotdb://127.0.0.1:6667?version=V_1_0";
 ```
+When connecting to a cluster via JDBC, configuring the URL with any one node in the cluster is sufficient.
 
 The parameter `version` represents the SQL semantic version used by the client, which is used in order to be compatible with the SQL semantics of `0.12` when upgrading to `0.13`.
 The possible values are: `V_0_12`, `V_0_13`, `V_1_0`.
diff --git a/src/UserGuide/V1.3.x/User-Manual/User-defined-function_apache.md b/src/UserGuide/V1.3.x/User-Manual/User-defined-function_apache.md
index 6050190ae..bd05ae139 100644
--- a/src/UserGuide/V1.3.x/User-Manual/User-defined-function_apache.md
+++ b/src/UserGuide/V1.3.x/User-Manual/User-defined-function_apache.md
@@ -98,7 +98,7 @@ CREATE FUNCTION <UDF-NAME> AS <UDF-CLASS-FULL-PATHNAME> (USING URI URI-STRING)
 ####  Method 1: Manually place the jar package
 
 Prepare:   
-When registering using this method, it is necessary to place the JAR package in advance in the `ext/udf` directory of all nodes in the cluster (which can be configured).
+When registering using this method, it is necessary to place the JAR package in advance in the `ext/udf` directory of **all nodes in the cluster** (which can be configured).
 
 Registration statement:
 
diff --git a/src/UserGuide/V1.3.x/User-Manual/User-defined-function_timecho.md b/src/UserGuide/V1.3.x/User-Manual/User-defined-function_timecho.md
index 47a63b2ff..9686c1069 100644
--- a/src/UserGuide/V1.3.x/User-Manual/User-defined-function_timecho.md
+++ b/src/UserGuide/V1.3.x/User-Manual/User-defined-function_timecho.md
@@ -97,7 +97,7 @@ CREATE FUNCTION <UDF-NAME> AS <UDF-CLASS-FULL-PATHNAME> (USING URI URI-STRING)
 ####  Method 1: Manually place the jar package
 
 Prepare:   
-When registering using this method, it is necessary to place the JAR package in advance in the `ext/udf` directory of all nodes in the cluster (which can be configured).
+When registering using this method, it is necessary to place the JAR package in advance in the `ext/udf` directory of **all nodes in the cluster** (which can be configured).
 
 Registration statement:
 
diff --git a/src/UserGuide/dev-1.3/API/Programming-JDBC.md b/src/UserGuide/dev-1.3/API/Programming-JDBC.md
index 5ee109218..8b8d541e2 100644
--- a/src/UserGuide/dev-1.3/API/Programming-JDBC.md
+++ b/src/UserGuide/dev-1.3/API/Programming-JDBC.md
@@ -212,6 +212,8 @@ String url = "jdbc:iotdb://127.0.0.1:6667?version=V_1_0";
 The parameter `version` represents the SQL semantic version used by the client, which is used in order to be compatible with the SQL semantics of `0.12` when upgrading to `0.13`.
 The possible values are: `V_0_12`, `V_0_13`, `V_1_0`.
 
+When connecting to a cluster via JDBC, configuring the URL with any one node in the cluster is sufficient.
+
 In addition, IoTDB provides additional interfaces in JDBC for users to read and write the database using different character sets (e.g., GB18030) in the connection.
 The default character set for IoTDB is UTF-8. When users want to use a character set other than UTF-8, they need to specify the charset property in the JDBC connection. For example:
 
diff --git a/src/UserGuide/dev-1.3/User-Manual/User-defined-function_apache.md b/src/UserGuide/dev-1.3/User-Manual/User-defined-function_apache.md
index 6050190ae..bd05ae139 100644
--- a/src/UserGuide/dev-1.3/User-Manual/User-defined-function_apache.md
+++ b/src/UserGuide/dev-1.3/User-Manual/User-defined-function_apache.md
@@ -98,7 +98,7 @@ CREATE FUNCTION <UDF-NAME> AS <UDF-CLASS-FULL-PATHNAME> (USING URI URI-STRING)
 ####  Method 1: Manually place the jar package
 
 Prepare:   
-When registering using this method, it is necessary to place the JAR package in advance in the `ext/udf` directory of all nodes in the cluster (which can be configured).
+When registering using this method, it is necessary to place the JAR package in advance in the `ext/udf` directory of **all nodes in the cluster** (which can be configured).
 
 Registration statement:
 
diff --git a/src/UserGuide/dev-1.3/User-Manual/User-defined-function_timecho.md b/src/UserGuide/dev-1.3/User-Manual/User-defined-function_timecho.md
index 47a63b2ff..9686c1069 100644
--- a/src/UserGuide/dev-1.3/User-Manual/User-defined-function_timecho.md
+++ b/src/UserGuide/dev-1.3/User-Manual/User-defined-function_timecho.md
@@ -97,7 +97,7 @@ CREATE FUNCTION <UDF-NAME> AS <UDF-CLASS-FULL-PATHNAME> (USING URI URI-STRING)
 ####  Method 1: Manually place the jar package
 
 Prepare:   
-When registering using this method, it is necessary to place the JAR package in advance in the `ext/udf` directory of all nodes in the cluster (which can be configured).
+When registering using this method, it is necessary to place the JAR package in advance in the `ext/udf` directory of **all nodes in the cluster** (which can be configured).
 
 Registration statement:
 
diff --git a/src/UserGuide/latest-Table/API/Programming-JDBC_apache.md b/src/UserGuide/latest-Table/API/Programming-JDBC_apache.md
index c19725a8d..70ed32039 100644
--- a/src/UserGuide/latest-Table/API/Programming-JDBC_apache.md
+++ b/src/UserGuide/latest-Table/API/Programming-JDBC_apache.md
@@ -72,6 +72,8 @@ Add the following dependency to your Maven `pom.xml` file:
 String url = "jdbc:iotdb://127.0.0.1:6667?sql_dialect=table";
 ```
 
+When connecting to a cluster via JDBC, configuring the URL with any one node in the cluster is sufficient.
+
 You can find the full example code at [GitHub Repository](https://github.com/apache/iotdb/blob/rc/2.0.1/example/jdbc/src/main/java/org/apache/iotdb/TableModelJDBCExample.java).
 
 Here is an excerpt of the sample code:
diff --git a/src/UserGuide/latest-Table/API/Programming-JDBC_timecho.md b/src/UserGuide/latest-Table/API/Programming-JDBC_timecho.md
index 2767e036d..fc3236f99 100644
--- a/src/UserGuide/latest-Table/API/Programming-JDBC_timecho.md
+++ b/src/UserGuide/latest-Table/API/Programming-JDBC_timecho.md
@@ -71,6 +71,7 @@ Add the following dependency to your Maven `pom.xml` file:
 ```Java
 String url = "jdbc:iotdb://127.0.0.1:6667?sql_dialect=table";
 ```
+When connecting to a cluster via JDBC, configuring the URL with any one node in the cluster is sufficient.
 
 You can find the full example code at [GitHub Repository](https://github.com/apache/iotdb/blob/rc/2.0.1/example/jdbc/src/main/java/org/apache/iotdb/TableModelJDBCExample.java).
 
diff --git a/src/UserGuide/latest/API/Programming-JDBC.md b/src/UserGuide/latest/API/Programming-JDBC.md
index 232e62ef4..9966af0d9 100644
--- a/src/UserGuide/latest/API/Programming-JDBC.md
+++ b/src/UserGuide/latest/API/Programming-JDBC.md
@@ -211,6 +211,8 @@ String url = "jdbc:iotdb://127.0.0.1:6667?version=V_1_0";
 The parameter `version` represents the SQL semantic version used by the client, which is used in order to be compatible with the SQL semantics of `0.12` when upgrading to `0.13`. 
 The possible values are: `V_0_12`, `V_0_13`, `V_1_0`.
 
+When connecting to a cluster via JDBC, configuring the URL with any one node in the cluster is sufficient.
+
 In addition, IoTDB provides additional interfaces in JDBC for users to read and write the database using different character sets (e.g., GB18030) in the connection.
 The default character set for IoTDB is UTF-8. When users want to use a character set other than UTF-8, they need to specify the charset property in the JDBC connection. For example:
 1. Create a connection using the GB18030 charset:
diff --git a/src/UserGuide/latest/User-Manual/User-defined-function_apache.md b/src/UserGuide/latest/User-Manual/User-defined-function_apache.md
index 2d3d56cf3..d6942dea7 100644
--- a/src/UserGuide/latest/User-Manual/User-defined-function_apache.md
+++ b/src/UserGuide/latest/User-Manual/User-defined-function_apache.md
@@ -97,7 +97,7 @@ CREATE FUNCTION <UDF-NAME> AS <UDF-CLASS-FULL-PATHNAME> (USING URI URI-STRING)
 ####  Method 1: Manually place the jar package
 
 Prepare:   
-When registering using this method, it is necessary to place the JAR package in advance in the `ext/udf` directory of all nodes in the cluster (which can be configured).
+When registering using this method, it is necessary to place the JAR package in advance in the `ext/udf` directory of **all nodes in the cluster** (which can be configured).
 
 Registration statement:
 
diff --git a/src/UserGuide/latest/User-Manual/User-defined-function_timecho.md b/src/UserGuide/latest/User-Manual/User-defined-function_timecho.md
index 368138332..db69a7925 100644
--- a/src/UserGuide/latest/User-Manual/User-defined-function_timecho.md
+++ b/src/UserGuide/latest/User-Manual/User-defined-function_timecho.md
@@ -98,7 +98,7 @@ CREATE FUNCTION <UDF-NAME> AS <UDF-CLASS-FULL-PATHNAME> (USING URI URI-STRING)
 ####  Method 1: Manually place the jar package
 
 Prepare:   
-When registering using this method, it is necessary to place the JAR package in advance in the `ext/udf` directory of all nodes in the cluster (which can be configured).
+When registering using this method, it is necessary to place the JAR package in advance in the `ext/udf` directory of **all nodes in the cluster** (which can be configured).
 
 Registration statement:
 
diff --git a/src/zh/UserGuide/Master/Table/API/Programming-JDBC_apache.md b/src/zh/UserGuide/Master/Table/API/Programming-JDBC_apache.md
index 740a1d31d..438a0d194 100644
--- a/src/zh/UserGuide/Master/Table/API/Programming-JDBC_apache.md
+++ b/src/zh/UserGuide/Master/Table/API/Programming-JDBC_apache.md
@@ -75,6 +75,7 @@ IoTDB JDBC接口提供了一种标准的方式来与IoTDB数据库进行交互
 ```Java
 String url = "jdbc:iotdb://127.0.0.1:6667?sql_dialect=table";
 ```
+JDBC 连接集群时，url 配置集群中任意一个节点即可。
 
 JDBC接口示例代码:[src/main/java/org/apache/iotdb/TableModelJDBCExample.java](https://github.com/apache/iotdb/blob/master/example/jdbc/src/main/java/org/apache/iotdb/TableModelJDBCExample.java)
 
diff --git a/src/zh/UserGuide/Master/Table/API/Programming-JDBC_timecho.md b/src/zh/UserGuide/Master/Table/API/Programming-JDBC_timecho.md
index 18a767829..5bcec595f 100644
--- a/src/zh/UserGuide/Master/Table/API/Programming-JDBC_timecho.md
+++ b/src/zh/UserGuide/Master/Table/API/Programming-JDBC_timecho.md
@@ -75,6 +75,7 @@ IoTDB JDBC接口提供了一种标准的方式来与IoTDB数据库进行交互
 ```Java
 String url = "jdbc:iotdb://127.0.0.1:6667?sql_dialect=table";
 ```
+JDBC 连接集群时，url 配置集群中任意一个节点即可。
 
 JDBC接口示例代码:[src/main/java/org/apache/iotdb/TableModelJDBCExample.java](https://github.com/apache/iotdb/blob/master/example/jdbc/src/main/java/org/apache/iotdb/TableModelJDBCExample.java)
 
diff --git a/src/zh/UserGuide/Master/Tree/API/Programming-JDBC.md b/src/zh/UserGuide/Master/Tree/API/Programming-JDBC.md
index 498800e7d..4424632a5 100644
--- a/src/zh/UserGuide/Master/Tree/API/Programming-JDBC.md
+++ b/src/zh/UserGuide/Master/Tree/API/Programming-JDBC.md
@@ -207,6 +207,8 @@ String url = "jdbc:iotdb://127.0.0.1:6667?version=V_1_0";
 ```
 version 表示客户端使用的 SQL 语义版本，用于升级 0.13 时兼容 0.12 的 SQL 语义，可能取值有：`V_0_12`、`V_0_13`、`V_1_0`。
 
+JDBC 连接集群时，url 配置集群中任意一个节点即可。
+
 此外，IoTDB 在 JDBC 中提供了额外的接口，供用户在连接中使用不同的字符集（例如 GB18030）读写数据库。
 IoTDB 默认的字符集为 UTF-8。当用户期望使用 UTF-8 外的字符集时，需要在 JDBC 的连接中，指定 charset 属性。例如：
 1. 使用 GB18030 的 charset 创建连接：
diff --git a/src/zh/UserGuide/Master/Tree/User-Manual/User-defined-function_apache.md b/src/zh/UserGuide/Master/Tree/User-Manual/User-defined-function_apache.md
index 7e6bef172..8c7f8b403 100644
--- a/src/zh/UserGuide/Master/Tree/User-Manual/User-defined-function_apache.md
+++ b/src/zh/UserGuide/Master/Tree/User-Manual/User-defined-function_apache.md
@@ -98,7 +98,7 @@ CREATE FUNCTION <UDF-NAME> AS <UDF-CLASS-FULL-PATHNAME> (USING URI URI-STRING)
 ####  方式一：手动放置jar包
 
 准备工作：  
-使用该种方式注册时，需要提前将 JAR 包放置到集群所有节点的 `ext/udf`目录下（该目录可配置）。
+使用该种方式注册时，需要提前将 JAR 包放置到**集群所有节点**的 `ext/udf`目录下（该目录可配置）。
 
 注册语句：
 
diff --git a/src/zh/UserGuide/Master/Tree/User-Manual/User-defined-function_timecho.md b/src/zh/UserGuide/Master/Tree/User-Manual/User-defined-function_timecho.md
index b71338c08..5c127816e 100644
--- a/src/zh/UserGuide/Master/Tree/User-Manual/User-defined-function_timecho.md
+++ b/src/zh/UserGuide/Master/Tree/User-Manual/User-defined-function_timecho.md
@@ -99,7 +99,7 @@ CREATE FUNCTION <UDF-NAME> AS <UDF-CLASS-FULL-PATHNAME> (USING URI URI-STRING)
 ####  方式一：手动放置jar包
 
 准备工作：  
-使用该种方式注册时，需要提前将 JAR 包放置到集群所有节点的 `ext/udf`目录下（该目录可配置）。
+使用该种方式注册时，需要提前将 JAR 包放置到**集群所有节点**的 `ext/udf`目录下（该目录可配置）。
 
 注册语句：
 
diff --git a/src/zh/UserGuide/V1.3.x/API/Programming-JDBC.md b/src/zh/UserGuide/V1.3.x/API/Programming-JDBC.md
index d647f5a9f..5a05496eb 100644
--- a/src/zh/UserGuide/V1.3.x/API/Programming-JDBC.md
+++ b/src/zh/UserGuide/V1.3.x/API/Programming-JDBC.md
@@ -207,6 +207,8 @@ String url = "jdbc:iotdb://127.0.0.1:6667?version=V_1_0";
 ```
 version 表示客户端使用的 SQL 语义版本，用于升级 0.13 时兼容 0.12 的 SQL 语义，可能取值有：`V_0_12`、`V_0_13`、`V_1_0`。
 
+JDBC 连接集群时，url 配置集群中任意一个节点即可。
+
 此外，IoTDB 在 JDBC 中提供了额外的接口，供用户在连接中使用不同的字符集（例如 GB18030）读写数据库。
 IoTDB 默认的字符集为 UTF-8。当用户期望使用 UTF-8 外的字符集时，需要在 JDBC 的连接中，指定 charset 属性。例如：
 1. 使用 GB18030 的 charset 创建连接：
diff --git a/src/zh/UserGuide/V1.3.x/User-Manual/User-defined-function_apache.md b/src/zh/UserGuide/V1.3.x/User-Manual/User-defined-function_apache.md
index f2a7cb627..cd9ddd213 100644
--- a/src/zh/UserGuide/V1.3.x/User-Manual/User-defined-function_apache.md
+++ b/src/zh/UserGuide/V1.3.x/User-Manual/User-defined-function_apache.md
@@ -97,7 +97,7 @@ CREATE FUNCTION <UDF-NAME> AS <UDF-CLASS-FULL-PATHNAME> (USING URI URI-STRING)
 ####  方式一：手动放置jar包
 
 准备工作：  
-使用该种方式注册时，需要提前将 JAR 包放置到集群所有节点的 `ext/udf`目录下（该目录可配置）。
+使用该种方式注册时，需要提前将 JAR 包放置到**集群所有节点**的 `ext/udf`目录下（该目录可配置）。
 
 注册语句：
 
diff --git a/src/zh/UserGuide/V1.3.x/User-Manual/User-defined-function_timecho.md b/src/zh/UserGuide/V1.3.x/User-Manual/User-defined-function_timecho.md
index 0d4da8a51..8f93ce01c 100644
--- a/src/zh/UserGuide/V1.3.x/User-Manual/User-defined-function_timecho.md
+++ b/src/zh/UserGuide/V1.3.x/User-Manual/User-defined-function_timecho.md
@@ -98,7 +98,7 @@ CREATE FUNCTION <UDF-NAME> AS <UDF-CLASS-FULL-PATHNAME> (USING URI URI-STRING)
 ####  方式一：手动放置jar包
 
 准备工作：  
-使用该种方式注册时，需要提前将 JAR 包放置到集群所有节点的 `ext/udf`目录下（该目录可配置）。
+使用该种方式注册时，需要提前将 JAR 包放置到**集群所有节点**的 `ext/udf`目录下（该目录可配置）。
 
 注册语句：
 
diff --git a/src/zh/UserGuide/dev-1.3/API/Programming-JDBC.md b/src/zh/UserGuide/dev-1.3/API/Programming-JDBC.md
index a0938f61d..09f8befc4 100644
--- a/src/zh/UserGuide/dev-1.3/API/Programming-JDBC.md
+++ b/src/zh/UserGuide/dev-1.3/API/Programming-JDBC.md
@@ -208,6 +208,8 @@ String url = "jdbc:iotdb://127.0.0.1:6667?version=V_1_0";
 ```
 version 表示客户端使用的 SQL 语义版本，用于升级 0.13 时兼容 0.12 的 SQL 语义，可能取值有：`V_0_12`、`V_0_13`、`V_1_0`。
 
+JDBC 连接集群时，url 配置集群中任意一个节点即可。
+
 此外，IoTDB 在 JDBC 中提供了额外的接口，供用户在连接中使用不同的字符集（例如 GB18030）读写数据库。
 IoTDB 默认的字符集为 UTF-8。当用户期望使用 UTF-8 外的字符集时，需要在 JDBC 的连接中，指定 charset 属性。例如：
 1. 使用 GB18030 的 charset 创建连接：
diff --git a/src/zh/UserGuide/dev-1.3/User-Manual/User-defined-function_apache.md b/src/zh/UserGuide/dev-1.3/User-Manual/User-defined-function_apache.md
index f2a7cb627..cd9ddd213 100644
--- a/src/zh/UserGuide/dev-1.3/User-Manual/User-defined-function_apache.md
+++ b/src/zh/UserGuide/dev-1.3/User-Manual/User-defined-function_apache.md
@@ -97,7 +97,7 @@ CREATE FUNCTION <UDF-NAME> AS <UDF-CLASS-FULL-PATHNAME> (USING URI URI-STRING)
 ####  方式一：手动放置jar包
 
 准备工作：  
-使用该种方式注册时，需要提前将 JAR 包放置到集群所有节点的 `ext/udf`目录下（该目录可配置）。
+使用该种方式注册时，需要提前将 JAR 包放置到**集群所有节点**的 `ext/udf`目录下（该目录可配置）。
 
 注册语句：
 
diff --git a/src/zh/UserGuide/dev-1.3/User-Manual/User-defined-function_timecho.md b/src/zh/UserGuide/dev-1.3/User-Manual/User-defined-function_timecho.md
index 0d4da8a51..8f93ce01c 100644
--- a/src/zh/UserGuide/dev-1.3/User-Manual/User-defined-function_timecho.md
+++ b/src/zh/UserGuide/dev-1.3/User-Manual/User-defined-function_timecho.md
@@ -98,7 +98,7 @@ CREATE FUNCTION <UDF-NAME> AS <UDF-CLASS-FULL-PATHNAME> (USING URI URI-STRING)
 ####  方式一：手动放置jar包
 
 准备工作：  
-使用该种方式注册时，需要提前将 JAR 包放置到集群所有节点的 `ext/udf`目录下（该目录可配置）。
+使用该种方式注册时，需要提前将 JAR 包放置到**集群所有节点**的 `ext/udf`目录下（该目录可配置）。
 
 注册语句：
 
diff --git a/src/zh/UserGuide/latest-Table/API/Programming-JDBC_apache.md b/src/zh/UserGuide/latest-Table/API/Programming-JDBC_apache.md
index 96c2bb623..a2631f523 100644
--- a/src/zh/UserGuide/latest-Table/API/Programming-JDBC_apache.md
+++ b/src/zh/UserGuide/latest-Table/API/Programming-JDBC_apache.md
@@ -75,6 +75,7 @@ IoTDB JDBC接口提供了一种标准的方式来与IoTDB数据库进行交互
 ```Java
 String url = "jdbc:iotdb://127.0.0.1:6667?sql_dialect=table";
 ```
+JDBC 连接集群时，url 配置集群中任意一个节点即可。
 
 JDBC接口示例代码:[src/main/java/org/apache/iotdb/TableModelJDBCExample.java](https://github.com/apache/iotdb/blob/rc/2.0.1/example/jdbc/src/main/java/org/apache/iotdb/TableModelJDBCExample.java)
 
diff --git a/src/zh/UserGuide/latest-Table/API/Programming-JDBC_timecho.md b/src/zh/UserGuide/latest-Table/API/Programming-JDBC_timecho.md
index 0fd3d1840..398dc94fd 100644
--- a/src/zh/UserGuide/latest-Table/API/Programming-JDBC_timecho.md
+++ b/src/zh/UserGuide/latest-Table/API/Programming-JDBC_timecho.md
@@ -75,6 +75,7 @@ IoTDB JDBC接口提供了一种标准的方式来与IoTDB数据库进行交互
 ```Java
 String url = "jdbc:iotdb://127.0.0.1:6667?sql_dialect=table";
 ```
+JDBC 连接集群时，url 配置集群中任意一个节点即可。
 
 JDBC接口示例代码:[src/main/java/org/apache/iotdb/TableModelJDBCExample.java](https://github.com/apache/iotdb/blob/rc/2.0.1/example/jdbc/src/main/java/org/apache/iotdb/TableModelJDBCExample.java)
 
diff --git a/src/zh/UserGuide/latest/API/Programming-JDBC.md b/src/zh/UserGuide/latest/API/Programming-JDBC.md
index f87dff958..a7f341442 100644
--- a/src/zh/UserGuide/latest/API/Programming-JDBC.md
+++ b/src/zh/UserGuide/latest/API/Programming-JDBC.md
@@ -208,6 +208,8 @@ String url = "jdbc:iotdb://127.0.0.1:6667?version=V_1_0";
 ```
 version 表示客户端使用的 SQL 语义版本，用于升级 0.13 时兼容 0.12 的 SQL 语义，可能取值有：`V_0_12`、`V_0_13`、`V_1_0`。
 
+JDBC 连接集群时，url 配置集群中任意一个节点即可。
+
 此外，IoTDB 在 JDBC 中提供了额外的接口，供用户在连接中使用不同的字符集（例如 GB18030）读写数据库。
 IoTDB 默认的字符集为 UTF-8。当用户期望使用 UTF-8 外的字符集时，需要在 JDBC 的连接中，指定 charset 属性。例如：
 1. 使用 GB18030 的 charset 创建连接：
diff --git a/src/zh/UserGuide/latest/User-Manual/User-defined-function_apache.md b/src/zh/UserGuide/latest/User-Manual/User-defined-function_apache.md
index 7e6bef172..8c7f8b403 100644
--- a/src/zh/UserGuide/latest/User-Manual/User-defined-function_apache.md
+++ b/src/zh/UserGuide/latest/User-Manual/User-defined-function_apache.md
@@ -98,7 +98,7 @@ CREATE FUNCTION <UDF-NAME> AS <UDF-CLASS-FULL-PATHNAME> (USING URI URI-STRING)
 ####  方式一：手动放置jar包
 
 准备工作：  
-使用该种方式注册时，需要提前将 JAR 包放置到集群所有节点的 `ext/udf`目录下（该目录可配置）。
+使用该种方式注册时，需要提前将 JAR 包放置到**集群所有节点**的 `ext/udf`目录下（该目录可配置）。
 
 注册语句：
 
diff --git a/src/zh/UserGuide/latest/User-Manual/User-defined-function_timecho.md b/src/zh/UserGuide/latest/User-Manual/User-defined-function_timecho.md
index b71338c08..5c127816e 100644
--- a/src/zh/UserGuide/latest/User-Manual/User-defined-function_timecho.md
+++ b/src/zh/UserGuide/latest/User-Manual/User-defined-function_timecho.md
@@ -99,7 +99,7 @@ CREATE FUNCTION <UDF-NAME> AS <UDF-CLASS-FULL-PATHNAME> (USING URI URI-STRING)
 ####  方式一：手动放置jar包
 
 准备工作：  
-使用该种方式注册时，需要提前将 JAR 包放置到集群所有节点的 `ext/udf`目录下（该目录可配置）。
+使用该种方式注册时，需要提前将 JAR 包放置到**集群所有节点**的 `ext/udf`目录下（该目录可配置）。
 
 注册语句：