[jira] [Updated] (AMBARI-7072) Metadata information exposed through API

["Yusaku Sako (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/AMBARI-7072?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Yusaku Sako updated AMBARI-7072:
--------------------------------
    Fix Version/s:     (was: 2.1.2)

> Metadata information exposed through API
> ----------------------------------------
>
>                 Key: AMBARI-7072
>                 URL: https://issues.apache.org/jira/browse/AMBARI-7072
>             Project: Ambari
>          Issue Type: New Feature
>          Components: ambari-server, contrib
>    Affects Versions: 1.7.0
>            Reporter: Janos Matyas
>            Assignee: Janos Matyas
>
> We'd like to retrieve metadata information (most of them are already persisted) through the API. We have open sourced a project called Periscope https://github.com/sequenceiq/periscope which brings SLA policy based autoscaling for Hadoop clusters installed with Ambari, and when up and downscaling clusters we need to know certain metadata information listed below - these features we have implemented in Periscope but would like to add in Ambari API, REST client and shell:
> 1. Ability to know the host-hostgroup relationship - from both directions
> 2. Ability to know the services/components-host relationship - from both directions
> 3. Ability to know the blueprint-cluster(s) relationship
> 4. Once Slider is supported, keep and retrieve the Slider apps related metadata



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