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Posted to dev@ambari.apache.org by "Hudson (JIRA)" <ji...@apache.org> on 2015/02/25 15:17:04 UTC
[jira] [Commented] (AMBARI-9778) In cluster layout recommendation,
slave component cardinality of 0+ not being used
[ https://issues.apache.org/jira/browse/AMBARI-9778?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14336518#comment-14336518 ]
Hudson commented on AMBARI-9778:
--------------------------------
SUCCESS: Integrated in Ambari-trunk-Commit #1861 (See [https://builds.apache.org/job/Ambari-trunk-Commit/1861/])
AMBARI-9778. In cluster layout recommendation, slave component cardinality of 0+ not being used (aonishuk) (aonishuk: http://git-wip-us.apache.org/repos/asf?p=ambari.git&a=commit&h=c17500a41bb24375a9b318f9be30a3465bf4014d)
* ambari-server/src/main/resources/stacks/stack_advisor.py
> In cluster layout recommendation, slave component cardinality of 0+ not being used
> ----------------------------------------------------------------------------------
>
> Key: AMBARI-9778
> URL: https://issues.apache.org/jira/browse/AMBARI-9778
> Project: Ambari
> Issue Type: Bug
> Reporter: Andrew Onischuk
> Assignee: Andrew Onischuk
> Fix For: 2.1.0
>
>
> We now have a slave component that has a cardinality of `0+`. This component
> in UI install wizard's host selection page does not want to be selected unless
> the user specifically checks hosts. Upto now we have not used cardinality to
> determine slave-component layout.
> This should change so that when slave-component layout is being determined, it
> should ask if component-name should use cardinality for layout. Call this
> method `isComponentUsingCardinalityForLayout(componentName)`. The default-
> stack-advisor will have always return false. However some stack-version could
> return true. If so, the minimum number in the cardinality will determine the
> number of hosts for the slave-component. If it is `0+`, then 0 hosts will be
> selected. If it is `1+`, then atleast 1 host will be selected.
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