Hadoop Web UI控制台添加验证_yarn web ui 加认证

       默认情况下，Hadoop HTTP Web控制台（ResourceManager，NameNode，NodeManagers和DataNodes）允许访问而无需任何形式的身份验证。

      官网连接：https://hadoop.apache.org/docs/stable/hadoop-project-dist/hadoop-common/HttpAuthentication.html

1、配置core-site.xml

<configuration>
	<!-- Authentication for Hadoop HTTP web-consoles -->
	<property>
		<name>hadoop.http.filter.initializers</name>
		<value>org.apache.hadoop.security.AuthenticationFilterInitializer</value>
	</property>
	<property>
		<name>hadoop.http.authentication.type</name>
		<value>simple</value>
	</property>
	<property>
		<name>hadoop.http.authentication.token.validity</name>
		<value>3600</value>
	</property>
	<property>
		<name>hadoop.http.authentication.signature.secret.file</name>
		<value>/opt/apache/hadoop/secret/hadoop-http-auth-signature-secret</value>
	</property>
	<property>
		<name>hadoop.http.authentication.cookie.domain</name>
		<value></value>
	</property>
	<property>
		<name>hadoop.http.authentication.simple.anonymous.allowed</name>
		<value>false</value>
	</property>
</configuration>

2、创建密钥文件

mkdir -p /opt/apache/hadoop/secret/

cd /opt/apache/hadoop/secret/

echo \"hadoop\" > hadoop-http-auth-signature-secret

3、同步core-site.xml、hadoop-http-auth-signature-secret到集群其他节点

4、重启ResourceManager，NameNode，NodeManagers和DataNodes

5、访问例子

http://ip:50070  出现错误

http://ip:50070?user.name=hadoop    访问正确

6、注意事项

(1)http://ip:50070?user.name=hadoop  访问正确后，再次访问可以不用密码或者密码不正确；如http://ip:50070或者http://ip:50070?user.name=xxx 都可以访问

(2)修改密码时，即echo \"xxx\" > hadoop-http-auth-signature-secret ；修改的密码要和之前的密码相差太，不然会出现修改完密码重启NameNode这些进程，不能正常访问，即使密码正确