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https://issues.apache.org/jira/browse/AMBARI-8237?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14203927#comment-14203927
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Jonathan Hurley commented on AMBARI-8237:
-----------------------------------------
The Ambari API already has a model to model in cases like this. We use a
"renderer" which is a value that instructs the API engine to format the results
of a query in a particular fashion. With this, we can query the alerts endpoint
and format it for a summary output. This includes formatting for alerts by
name, host, and other supported combinations.
{code}
{
"href" : "http://localhost:8080/api/v1/clusters/c1/alerts?format=summary";,
"alerts_summary" : {
"CRITICAL" : {
"count" : 3,
"original_timestamp" : 1415372828182
},
"OK" : {
"count" : 37,
"original_timestamp" : 1415375364937
},
"UNKNOWN" : {
"count" : 1,
"original_timestamp" : 1415372632261
},
"WARN" : {
"count" : 0,
"original_timestamp" : 0
}
}
}
{code}
or
{code}
{
"href" :
"http://localhost:8080/api/v1/clusters/c1/alerts?Alert/name=datanode_process&format=summary";,
"alerts_summary" : {
"CRITICAL" : {
"count" : 0,
"original_timestamp" : 0
},
"OK" : {
"count" : 1,
"original_timestamp" : 1415372992337
},
"UNKNOWN" : {
"count" : 0,
"original_timestamp" : 0
},
"WARN" : {
"count" : 0,
"original_timestamp" : 0
}
}
}
{code}
or
{code}
{
"href" :
"http://localhost:8080/api/v1/clusters/c1/alerts?Alert/name=datanode_process&Alert/host_name=c6401.ambari.apache.org&format=summary";,
"alerts_summary" : {
"CRITICAL" : {
"count" : 0,
"original_timestamp" : 0
},
"OK" : {
"count" : 1,
"original_timestamp" : 1415372992337
},
"UNKNOWN" : {
"count" : 0,
"original_timestamp" : 0
},
"WARN" : {
"count" : 0,
"original_timestamp" : 0
}
}
}
{code}
> Alerts: Provide Summary Structure On Alerts Endpoint
> ----------------------------------------------------
>
> Key: AMBARI-8237
> URL: https://issues.apache.org/jira/browse/AMBARI-8237
> 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
>
>
> In the alert definitions summary page we show all the definitions along with
> counts of how many are OK, WARN, ERROR, etc. We need the alert instance
> counts rolled up into the alert definition response on cluster. This will
> save UI from getting all instances and then determining counts.
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