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https://issues.apache.org/jira/browse/AMBARI-15457?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15256446#comment-15256446
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Christopher Jackson commented on AMBARI-15457:
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[~dgergely] If someone encounters this issue and then upgrades to 2.2.2 via
ambari upgrade will it ensure a valid topology is created? If not what are the
steps needed to correct this issue?
> Topology host info is not cleared when a host is removed
> --------------------------------------------------------
>
> Key: AMBARI-15457
> URL: https://issues.apache.org/jira/browse/AMBARI-15457
> Project: Ambari
> Issue Type: Bug
> Components: ambari-server
> Reporter: Daniel Gergely
> Assignee: Daniel Gergely
> Fix For: 2.4.0, 2.2.2
>
> Attachments: AMBARI-15457.patch, AMBARI-15457_branch-2.2.patch
>
>
> When a host is removed, a record is left in the topology_host_info table. As
> a result re-adding the same host is not possible, due to invalid topology.
> Host removal should remove the corresponding record from topology_host_info
> as well.
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