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https://issues.apache.org/jira/browse/HIVE-22563?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17427576#comment-17427576
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Zhihua Deng commented on HIVE-22563:
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If the field `client_protocol`(v10) sent from client cannot be found at server
side(v8), a issue like this may be raised.
> Required field 'client_protocol' is unset (hive server backward compatibility)
> ------------------------------------------------------------------------------
>
> Key: HIVE-22563
> URL: https://issues.apache.org/jira/browse/HIVE-22563
> Project: Hive
> Issue Type: Bug
> Components: Hive
> Affects Versions: 1.2.1, 2.3.6
> Reporter: ZhangZhiCheng
> Priority: Blocker
> Attachments: image-2019-11-29-10-20-46-982.png
>
>
> I try to connect to hive server 1.2.1 by using hive client
> (hive-jdbc-2.3.6.jar) , then I got this issue "Required field
> 'client_protocol' is unset". Is that means hive server 1.2.1 has no backward
> compatibility for newer hive client version?
> !image-2019-11-29-10-20-46-982.png!
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