Required field 'client_protocol' is unset

Question

I am using Hive 0.12, and I\'m trying the JDBC from apache. When I try to run the code, I get apache.thrift.TApplicationException.

import java.sql.SQLExcepti         


        

Answer 1

Got same issue. It works if you set

hive JDBC Maven Repo version as 1.1.0 .

Check this jira. Newest hive-jdbc version is not supported with HIve 0.13. https://issues.apache.org/jira/browse/HIVE-6050

Add this in your pom.

<dependency>
  <groupId>org.apache.hive</groupId>
  <artifactId>hive-jdbc</artifactId>
  <version>1.1.0</version>
  <classifier>standalone</classifier>
</dependency>

Answer 2

I have faces same issue. I fixed this by following below steps.

<dependency>
    <groupId>org.apache.hive</groupId>
    <artifactId>hive-jdbc</artifactId>
    <version>1.1.0</version>
    <classifier>standalone</classifier>
    <exclusions>
        <exclusion>
            <groupId>org.eclipse.jetty.aggregate</groupId>
            <artifactId>*</artifactId>
        </exclusion>
    </exclusions>
</dependency>

• Make sure that, you add above dependency.
• Class.forName("org.apache.hive.jdbc.HiveDriver"); Add this before calling DriverManager.getConnection(url);
• Represent hive url by IP instead of hostname.

Answer 3

This indicates a version mismatch between client and server, namely that the client is newer than the server, which is your case.

Answer 4

Guys even I faced the same issue and go the solution by doing the following steps

Step 01:- Include the Hive lib jars on yours eclipse(which ever might be the IDE) by using the below link.

http://mirrors.supportex.net/apache/hive/hive-1.0.1/ (apache-hive-1.0.1-bin.tar.gz)

Step 02: add hadoop-core-1.1.0 jar

as everyone mentioned this error occurs due to the version mismatch with hadoop standalone and hadoop core.