WARN jdbc.HiveConnection: Failed to connect to localhost:10000 Error: Could not open client trans...

在启动hiveserver2后，使用beeline远程连接：

beeline -u jdbc:hive2://localhost:10000

无法连接成功，并报如下错：
WARN jdbc.HiveConnection: Failed to connect to localhost:10000
Error: Could not open client transport with JDBC Uri: jdbc:hive2://localhost:10000: Failed to open new session: java.lang.RuntimeException: org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.security.authorize.AuthorizationException): User: root is not allowed to impersonate anonymous (state=08S01,code=0)
为用户权限问题。

解决办法：

找到core-site.xml，..../hadoop安装目录/etc/hadoop/core-site.xml
添加/修改（其中XXX为用户名,如：root、zhangsan等）:

                  hadoop.proxyuser.XXX.hosts
                  *


                 hadoop.proxyuser.XXX.groups
                 *

然后stop-dfs.sh、stop-yarn.sh、start-dfs.sh、start-yarn.sh（重启hadoop），否则以上修改不生效。
再次执行:

beeline -u jdbc:hive2://localhost:10000

即可连接成功。