beeline not able to connect to hiveserver2

Question

I have a CDH 5.3 instance. I start the hive-server2 by first starting the hive-metastore and then the hive-server from command line. After this I use beeline to connect to my hive-server2 but apparently it is not able to so.

Could not open connection to jdbc:hive2://localhost:10000: java.net.ConnectException: Connection refused (state=08S01,code=0)

Another issue, I tried to see if the hive-server2 was listening on port 10000. I did " sudo netstat -tulpn | grep :10000" but none of the applications came up. I also added the following property in the hive-site.xml but to no avail. Why it doesn't show up on the netstat?

<property>
   <name>hive.server2.thrift.port</name>
   <value>10000</value>
   <description>TCP port number to listen on, default 10000</description>
 </property>

The connect command on beeline:

!connect jdbc:hive2://localhost:10000 org.apache.hive.jdbc.HiveDriver

when asked for username and password, I just enter test "user" and "password" for the respective values and then it throws the error. Any help will be appreciated

Answer 1

Hive Connecting to beeline from client having various Modes.

1.Embedded Mode: Both Server and Client runs in same machine. No TCP Connection required.

 If hive.server2.authentication is "NONE" in HIVE_HOME/conf/hive-site.xml then connect beeline with below url

Connection URL:
               !connect jdbc:hive2://

2. Remote Mode: It supports multiple clients to execute queries with help of following Authentication schemes.

Authentication Schemes:

i.)SASL Authentication:

   If value of "hive.server2.authentication" property in HIVE_HOME/conf/hive-site.xml to be set as "SASL" then connect hive beeline with below url

   Beeline URL:
             !connect jdbc:hive2://<host>:<port>/<db>

ii.)NOSASL Authentication:
   If "hive.server2.authentication" is nosasl then connect the beeline like below.
   Beeline URL:

             !connect jdbc:hive2://<host>:<port>/<db>;auth=noSasl

Hope this really helps you

References:

https://docs.hortonworks.com/HDPDocuments/HDP2/HDP-2.3.2/bk_dataintegration/content/beeline-vs-hive-cli.html

Answer 2

I had the same problem here. This is simply because hiveserver2 failed to start -- the error does not show up in console, but in hive logs. In my case, hive logs are located in /tmp/ubuntu/hive.log

There might be different reason for you to cause hive-server2 failed to start, but it definitely worth to look into this log file.