1. Hive hiveserver2 starts, the process exists, but the exception of port 10000 is not found?

Add a configuration in hive-site.xml and restart the hiveserver2 service

<property>
    <name>hive.metastore.event.db.notification.api.auth</name>
    <value>false</value>
</property>

2. Beeline can’t connect to hiveserver2, report to org apache.hadoop.security.authorize.AuthorizationException?

Permission problem. Entity users such as root are not allowed to access

Add the following configuration in core-site.xml, distribute the configuration, remember to distribute , restart Hadoop, and connect again

<property>
    <name>hadoop.proxyuser.root.hosts</name>
    <value>*</value>
</property>
<property>
    <name>hadoop.proxyuser.root.groups</name>
    <value>*</value>
</property>