[jira] [Commented] (AMBARI-14658) Ambari Metrics service does not show data for swap_total memory metric

["bhuvnesh chaudhary (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/AMBARI-14658?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15097787#comment-15097787 ] 

bhuvnesh chaudhary commented on AMBARI-14658:
---------------------------------------------

[~swagle] Here is a small patch which fixes the issues. However, please feel free to guide me if you believe that swap_total needs to be included somewhere else as well or it was deliberately left out.

Here is the API call output after the patch
http://c6403.ambari.apache.org:6188/ws/v1/timeline/metrics?metricNames=swap_total
{noformat}
{
  "metrics": [
    {
      "timestamp": 1452757699114,
      "metricname": "swap_total",
      "appid": "HOST",
      "starttime": 1452757699114,
      "metrics": {
        "1452757699114": 5767152
      }
    }
  ]
}
{noformat}

Snapshot from Ambari Metrics Widgets attached as well. Will be raising a review board request as well for the same.

> Ambari Metrics service does not show data for swap_total memory metric
> ----------------------------------------------------------------------
>
>                 Key: AMBARI-14658
>                 URL: https://issues.apache.org/jira/browse/AMBARI-14658
>             Project: Ambari
>          Issue Type: Bug
>          Components: ambari-metrics
>    Affects Versions: trunk
>            Reporter: bhuvnesh chaudhary
>            Assignee: bhuvnesh chaudhary
>            Priority: Minor
>         Attachments: swap_total_displayed.png
>
>
> swap_total metric is defined in metrics.json for several services, but it appears that the value for this metric is never extracted from the host, thus it is not available for consumption by collector and is not returned by API calls.
> Here is the response to the API call for swap_free
> http://c6403.ambari.apache.org:6188/ws/v1/timeline/metrics?metricNames=swap_total
> {noformat}
> {
> "metrics": []
> }
> {noformat}
> http://c6403.ambari.apache.org:6188/ws/v1/timeline/metrics?metricNames=swap_free
> {noformat}
> {
> 	"metrics": [{
> 		"timestamp": 1452592235626,
> 		"metricname": "swap_free",
> 		"appid": "HOST",
> 		"starttime": 1452592235626,
> 		"metrics": {
> 			"1452592235626": 5766994
> 		}
> 	}]
> }
> {noformat}



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