[jira] [Commented] (AMBARI-22472) Update NodeManager's HSI identity 'llap_zk_hive' to use '/HIVE/HIVE_SERVER/hive_server_hive' reference instead of creating the same identity again.

["Swapan Shridhar (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/AMBARI-22472?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16257929#comment-16257929 ] 

Swapan Shridhar commented on AMBARI-22472:
------------------------------------------

*TESTING:*
*
Ambari 2.5, before upgrade*:

From /etc/hive2/cong/conf.server/hive-site.xml:

{code}
      <property>
      <name>hive.llap.daemon.keytab.file</name>
      <value>/etc/security/keytabs/hive.service.keytab</value>
    </property>

    <property>
      <name>hive.llap.daemon.service.principal</name>
      <value>hive/_HOST@EXAMPLE.COM</value>
    </property>

    <property>
      <name>hive.llap.zk.sm.keytab.file</name>
      <value>/etc/security/keytabs/hive.llap.zk.sm.keytab</value>
    </property>

    <property>
      <name>hive.llap.zk.sm.principal</name>
      <value>hive/_HOST@EXAMPLE.COM</value>
    </property>
{code} 

> Update NodeManager's HSI identity 'llap_zk_hive' to use '/HIVE/HIVE_SERVER/hive_server_hive' reference instead of creating the same identity again.
> ---------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: AMBARI-22472
>                 URL: https://issues.apache.org/jira/browse/AMBARI-22472
>             Project: Ambari
>          Issue Type: Bug
>            Reporter: Swapan Shridhar
>            Assignee: Swapan Shridhar
>
> *Background:*
> YARN NodeManager currently have 2 identities in 2.5 and 2.6 stack, namely : *'/HIVE/HIVE_SERVER/hive_server_hive'*  and *'llap_zk_hive'*.
> - */HIVE/HIVE_SERVER/hive_server_hive* is a reference from HIVE_SERVER, whereas
> - *llap_zk_hive* creates same principal as above in a separate keytab file.
> *Issue:* Recreating same identities in different files creates issues while AMbari upgrade from 2.5 to 2.6, as the *llap_zk_hive* are not refreshed/updated after the upgrade. Thus, HSI fails to come up.



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