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https://issues.apache.org/jira/browse/AMBARI-18167?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15423344#comment-15423344
 ] 

Hadoop QA commented on AMBARI-18167:
------------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest 
attachment 
  http://issues.apache.org/jira/secure/attachment/12823967/AMBARI-18167.patch
  against trunk revision .

    {color:red}-1 patch{color}.  Top-level trunk compilation may be broken.

Console output: 
https://builds.apache.org/job/Ambari-trunk-test-patch/8432//console

This message is automatically generated.

> RU: Kafka brokers restart was stopped during downgrade cluster
> --------------------------------------------------------------
>
>                 Key: AMBARI-18167
>                 URL: https://issues.apache.org/jira/browse/AMBARI-18167
>             Project: Ambari
>          Issue Type: Bug
>          Components: ambari-server
>    Affects Versions: 2.4.0
>            Reporter: Mugdha Varadkar
>            Assignee: Mugdha Varadkar
>            Priority: Blocker
>              Labels: 240RMApproved
>             Fix For: 2.4.0
>
>         Attachments: AMBARI-18167.patch
>
>
> Kafka broker restart failed due to below error:
> {noformat}
> raise Fail("Configuration parameter '" + self.name + "' was not found in 
> configurations dictionary!")
> resource_management.core.exceptions.Fail: Configuration parameter 
> 'xasecure.audit.destination.db' was not found in configurations dictionary!
> {noformat}
> Solution:
> During RU downgrade, <pre-upgrade/> runs on downgrade as well, which deleted 
> {{xasecure.audit.destination.db}} config property. 
> {noformat}
> <pre-upgrade>
>           <task xsi:type="configure" 
> id="hdp_2_5_0_0_remove_ranger_kafka_audit_db" />
> </pre-upgrade>
> {noformat}
> Need to override it with a blank <pre-downgrade/> element.



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