[jira] [Commented] (AMBARI-7231) Slider View: View UI should load data from Ambari API

["Srimanth Gunturi (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/AMBARI-7231?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14127758#comment-14127758 ] 

Srimanth Gunturi commented on AMBARI-7231:
------------------------------------------

+1 for [^AMBARI-7231.patch].

> Slider View: View UI should load data from Ambari API
> -----------------------------------------------------
>
>                 Key: AMBARI-7231
>                 URL: https://issues.apache.org/jira/browse/AMBARI-7231
>             Project: Ambari
>          Issue Type: Task
>          Components: ambari-client
>    Affects Versions: 1.7.0
>            Reporter: Antonenko Alexander
>            Assignee: Antonenko Alexander
>            Priority: Critical
>             Fix For: 1.7.0
>
>         Attachments: AMBARI-7231.patch
>
>
> Slider View UI currently calls {{/api/v1/views/SLIDER/versions/1.0.0/instances/SLIDER_1/resources/status}} API to determine if view is enabled, and if not, why it is not enabled. 
> UI when loaded, should not use this GET call anymore. Rather it should determine this information by directly calling Ambari REST api, and then PUT this and other information to {{/api/v1/views/SLIDER/versions/1.0.0/instances/SLIDER_1}}.
> UI should determine whether to enable view, and reasons why if not. 
> The view could be disabled for multiple reasons. One or all of the below could be reasons why the view is disabled
> * HDFS, YARN, ZK not installed
> * HDFS, YARN, ZK not started
> If any of the above are true, the reason(s) should be shown in appropriate message(s) (as we do currently).
> Additionally, the following information should also be loaded from Ambari on load
> * Cluster name
> * HDFS location ({{fs.defaultFS}} config from {{core-site}})
> * YARN RM location ({{yarn.resourcemanager.address}} from {{yarn-site}})
> * YARN RM Scheduler location ({{yarn.resourcemanager.scheduler.address}} from {{yarn-site}})
> * ZK Quorum path - comma separated path of all {{ZK_SERVER_HOST:clientPort}} values. {{clientPort}} is from {{zookeeper-env}}. Example: {{c6401:2181,c6402:2181,c6403:2181}}.
> All the above information (cluster name, HDFS location, YARN RM location, YARN RM Scheduler location, ZK Quorum path) should then be PUT to {{properties}} key of {{/api/v1/views/SLIDER/versions/1.0.0/instances/SLIDER_1}}, from where GET can be called later during app running. 
> {code}
> {
>   "href": "http://slider-1:8080/api/v1/views/SLIDER/versions/1.0.0/instances/SLIDER_1",
>   "ViewInstanceInfo": {
>     "context_path": "/views/SLIDER/1.0.0/SLIDER_1",
>     "description": null,
>     "icon64_path": null,
>     "icon_path": null,
>     "instance_name": "SLIDER_1",
>     "label": "Slider Apps View",
>     "static": true,
>     "version": "1.0.0",
>     "view_name": "SLIDER",
>     "visible": true,
>     "instance_data": {},
>     "properties": {
>       "ambariAddress": "http://c6401:8080",
>       "clusterName": "c1",
>       "hdfsAddress": "hdfs://c6401:8020",
>       "yarnRMAddress": "c6402:8050",
>       "yarnRMSchedulerAddress": "c6402:8030",
>       "zookeeperQuorum": "c6401:2181,c6402:2181,c6403:2181"
>     }
>   }
> }{code}
> This effort is crucial for Slider view to work in a standalone environment.



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