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https://issues.apache.org/jira/browse/AMBARI-20809?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sandor Magyari updated AMBARI-20809:
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Description: In Blueprint deployments it is supported to specify a host
predicate and host count to control which hosts and how many hosts will
automatically join the host group. In case later is decided that less hosts to
be used for the host group thus only a few hosts (less than the original host
count) will be provisioned currently there is no way to remove pending host
requests (created for hosts never joined to the cluster) so actually reducing
host count for a host group. (was: In Blueprint deployments it is supported to
specify a host predicate and host count to control which hosts and how many
hosts will automatically join the host group. In case later is decided that
less hosts to be used for the host group thus only a few hosts (less than the
original host count) will be provisioned currently there is no way to downscale
the host count to adjust it to the desired count.
Options)
> Support removal of pending host requests from a TopologyRequest
> ---------------------------------------------------------------
>
> Key: AMBARI-20809
> URL: https://issues.apache.org/jira/browse/AMBARI-20809
> Project: Ambari
> Issue Type: Improvement
> Components: ambari-server
> Reporter: Sandor Magyari
> Assignee: Sandor Magyari
> Fix For: 3.0.0
>
> Attachments: AMBARI-20809.patch
>
>
> In Blueprint deployments it is supported to specify a host predicate and host
> count to control which hosts and how many hosts will automatically join the
> host group. In case later is decided that less hosts to be used for the host
> group thus only a few hosts (less than the original host count) will be
> provisioned currently there is no way to remove pending host requests
> (created for hosts never joined to the cluster) so actually reducing host
> count for a host group.
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