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This article mainly introduces "what to do when beeline can not connect after hiveserver2 starts". In daily operation, I believe that many people have doubts about how beeline can not connect after hiveserver2 startup. The editor consulted all kinds of information and sorted out simple and easy-to-use methods of operation. I hope it will be helpful to answer the doubt that "beeline can not connect after hiveserver2 startup". Next, please follow the editor to study!

1. Start hiveserver2

Hiveserver2

2. Using beeline connection `beeline-u jdbc:hive2://localhost: 10000` connection error is reported as follows:

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: hadoop is not allowed to impersonate anonymous (state=08S01,code=0) Beeline version 2.3.8 by Apache Hive

User: hadoop is not allowed to impersonate anonymous gives a clear error. Here, hadoop is the user who logs in to the host, and hadoop cannot connect to hiveserver2 as an anonymous user. Just add the following configuration

Hadoop.proxyuser.xxx.hosts * hadoop.proxyuser.xxx.groups *

Where "xxx" is the user who connects to beeline, and replace "xxx" with your own user name. * "represents the users, user groups and hosts that can operate hadoop through the super agent" xxx ". Hadoop introduces a security masquerade mechanism, so that hadoop does not allow the upper system to pass the actual user directly to the hadoop layer, but to a super agent, from which the agent performs operations on the hadoop. Avoid arbitrary client manipulation of hadoop

At this point, the study on "what to do when beeline can not connect after hiveserver2 startup" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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