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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AMBARI-8623) Alert Host Count Summary Exposed Via Cluster Endpoint
Date Thu, 11 Dec 2014 06:03:12 GMT

    [ https://issues.apache.org/jira/browse/AMBARI-8623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14242190#comment-14242190
] 

Hudson commented on AMBARI-8623:
--------------------------------

SUCCESS: Integrated in Ambari-trunk-Commit-docker #449 (See [https://builds.apache.org/job/Ambari-trunk-Commit-docker/449/])
AMBARI-8623 - Alert Host Count Summary Exposed Via Cluster Endpoint (jonathanhurley) (jhurley:
http://git-wip-us.apache.org/repos/asf?p=ambari.git&a=commit&h=a51afbe54e1588b945dc1d879e3298dc829e5c04)
* ambari-server/src/main/java/org/apache/ambari/server/orm/dao/AlertHostSummaryDTO.java
* ambari-server/src/main/java/org/apache/ambari/server/controller/internal/AlertSummaryPropertyProvider.java
* ambari-server/src/main/java/org/apache/ambari/server/orm/dao/AlertsDAO.java
* ambari-server/src/test/java/org/apache/ambari/server/orm/dao/AlertsDAOTest.java
* ambari-server/src/main/java/org/apache/ambari/server/controller/internal/AlertTargetResourceProvider.java


> Alert Host Count Summary Exposed Via Cluster Endpoint
> -----------------------------------------------------
>
>                 Key: AMBARI-8623
>                 URL: https://issues.apache.org/jira/browse/AMBARI-8623
>             Project: Ambari
>          Issue Type: Task
>          Components: alerts, ambari-server
>    Affects Versions: 2.0.0
>            Reporter: Jonathan Hurley
>            Assignee: Jonathan Hurley
>             Fix For: 2.0.0
>
>         Attachments: AMBARI-8623.patch
>
>
> In Ambari-1.7.0 the cluster endpoint used to have a summary of host-counts by severity.
We need such a field in Ambari-2.0.0.
> {code}
> alerts: {
>  summary: {
>   CRITICAL: 1,
>   OK: 4,
>   PASSIVE: 0,
>   WARNING: 0
>  }
> }
> {code}
> The alerts_summary structure currently returned by the 2.0.0 API are the summary counts
of alerts in the system, not those of the hosts. There are alerts that don't have a host (such
as aggregate alerts). 
> In order to expose the host alert count, there are two ways to do this:
> 1) Add a new field to the cluster endpoint; something like {{alerts_host_summary}}
> {noformat}
> http://localhost:8080/api/v1/clusters/c1?fields=alerts_host_summary
> {
>   "href" : "http://localhost:8080/api/v1/clusters/c1?fields=alerts_host_summary",
>   "Clusters" : {
>     "cluster_name" : "c1",
>     "version" : "HDP-2.2"
>   },
>   "alerts_host_summary" : {
>     "CRITICAL" : 1,
>     "OK" : 41,
>     "UNKNOWN" : 0,
>     "WARNING" : 0
>   }
> }
> {noformat}
> 2) Provide a new formatter to display the alerts formatted by host:
> {noformat}
> http://localhost:8080/api/v1/clusters/c1/alerts?format=hostSummary
> {
>   "href" : "http://localhost:8080/api/v1/clusters/c1/alerts?format=hostSummary",
>   "alerts_summary" : {
>     "CRITICAL" : {
>       "count" : 1,
>       "original_timestamp" : 1418150735812
>     },
>     "OK" : {
>       "count" : 41,
>       "original_timestamp" : 1418151145325
>     },
>     "UNKNOWN" : {
>       "count" : 0,
>       "original_timestamp" : 0
>     },
>     "WARNING" : {
>       "count" : 0,
>       "original_timestamp" : 0
>     }
>   }
> }
> {noformat}



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