Could not open connection to the HS2 server解决方案

问题如下：

Error:Could not open client transport with JDBC Uri: jdbc:hive2://node01:10000/default:java.net.ConnectException refused 

 先输入下面命令，确定metostore能不能启动

启动元数据服务
hive --service metastore
netstat -nlpt | grep 9083

启动H2服务
hive --service hiveserver2
netstat -nlpt | grep 10000

查看日志(默认位置/tmp/用户名/hive.log)
/tmp/hadoop/hive.log

hive3.2 beeline启动错误：

java.lang.NoClassDefFoundError: org/apache/tez/dag/api/TezConfiguration

默认一段时间后服务会重新起来。
但是为什么会启动tez呢，我没有安装啊。查看日志，有如下关联信息
2020-11-17 00:06:29,576 INFO  [main] server.HiveServer2: HS2 interactive HA not enabled. Starting tez sessions..
2020-11-17 00:06:29,576 INFO  [main] server.HiveServer2: Starting/Reconnecting tez sessions..

解决方案1.安装tez引擎
解决方案2.修改hive参数
修改hive配置文件参数
  <property>
    <name>hive.server2.active.passive.ha.enable</name>
    <value>true</value>
    <description>Whether HiveServer2 Active/Passive High Availability be enabled when Hive Interactive sessions are enabled.This will also require hive.server2.support.dynamic.service.discovery to be enabled.</description>
  </property>

hive3.2 beeline连接错误，启动无法连接，禁止匿名用户连接：

Error: Could not open client transport with JDBC Uri: jdbc:hive2://localhost:10000/default: Failed to open new session: java.lang.RuntimeException: org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.security.authorize.AuthorizationException): User: hadoop is not allowed to impersonate anonymous (state=08S01,c
ode=0)

beeline
!connect jdbc:hive2://localhost:10000/default
anonymous
anonymous
默认的用户名为anonymous

解决方案：修改hive参数