documentation for credential.

docs/interpreter/jdbc.md

@@ -116,7 +116,11 @@ The JDBC interpreter properties are defined by default like below.
   </tr>
 </table>
 
-If you want to connect other databases such as `Mysql`, `Redshift` and `Hive`, you need to edit the property values. 
+If you want to connect other databases such as `Mysql`, `Redshift` and `Hive`, you need to edit the property values.
+You can also use [Credential](../security/datasource_authorization.html) for JDBC authentication.
+If you does not define the `default.user` and `default.password` for connecting a database in the interpreter properties,
+the JDBC interpreter are going to get the account information from [Credential](../security/datasource_authorization.html).
+
 The below example is for `Mysql` connection.
 
 <img src="../assets/themes/zeppelin/img/docs-img/edit_properties.png" width="600px" />

docs/security/datasource_authorization.md

@@ -37,7 +37,9 @@ You can add new credentials in the dropdown menu for your data source which can
 
 <img class="img-responsive" src="../assets/themes/zeppelin/img/docs-img/credential_tab.png" width="180px"/>
 
-**Entity** can be the key that distinguishes each credential sets. Type **Username & Password** for your own credentials. ex) user & password of Mysql 
+**Entity** can be the key that distinguishes each credential sets.(We suggest that the convention of the **Entity** is `[InterpreterName].[Alias]`.)
+
+Type **Username & Password** for your own credentials. ex) user & password of Mysql
 
 <img class="img-responsive" src="../assets/themes/zeppelin/img/docs-img/add_credential.png" />
 

zeppelin-web/src/app/credential/credential.html

@@ -59,7 +59,7 @@ limitations under the License.
                 </thead>
                 <tr>
                   <td>
-                    <input id="entityname" ng-model="entity" placeholder="[InterpreterName].[alias]"/>
+                    <input id="entityname" ng-model="entity" placeholder="[InterpreterName].[Alias]"/>
                   </td>
                   <td>
                     <textarea msd-elastic ng-model="username"></textarea>