Daniel Gergely created AMBARI-17219:
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Summary: Removing and re-adding hosts makes database inconsitent
Key: AMBARI-17219
URL: https://issues.apache.org/jira/browse/AMBARI-17219
Project: Ambari
Issue Type: Bug
Components: ambari-server
Reporter: Daniel Gergely
Assignee: Daniel Gergely
Priority: Critical
Fix For: 2.4.0, 2.2-next, 2.5.0
When a host is removed, it is necessary to have all the components stopped and
removed, before the host itself can be deleted.
If a host component is not stopped, it is not allowed to be removed, so the
host itself cannot be removed. However if re-adding the host is tried, even if
it is still in the cluster, a row is inserted to topology_host_info table.
Multiple lines of the same host in that table is incorrect, so topology
validation fails.
Expected behaviour: if host is still in the cluster, a duplicate should not be
able to be persisted in any of the related tables.
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