[Hawkular-dev] Metrics reporting into hawkular-metrics

[Heiko W.Rupp]

Hi,

I seem to have missed wrapping stuff like that.

But why have <id, list <time,value>> when the most basic use case is a single <id, time, value> ?
I think that way, client writing gets a lot harder than it should be.

And no, having a java-json-serialization framework does not solve it for cases when the client
is not written in java


> Am 24.02.2015 um 12:21 schrieb Michael Burman <miburman at redhat.com>:
> 
> Hi,
> 
> The only issue I had with those methods was that I can't send anymore 
> availability & numeric metrics in the same request. But not that I 
> couldn't send many metrics in a same request. For example, this is what 
> my gather_agent sends to the endpoint:
> 
> [
>   {
>     "data": [
>       {
>         "timestamp": 1424776542007,
>         "value": 11989272.0
>       }
>     ],
>     "name": "miranda.mem.memtotal"
>   },
>   {
>     "data": [
>       {
>         "timestamp": 1424776542007,
>         "value": 2423852.0
>       }
>     ],
>     "name": "miranda.mem.memfree"
>   },
> ... and so on. In a single request. I'm posting this to the 
> http://{0}:{1}/rhq-metrics/{tenant_id}/metrics/numeric/data and it works 
> fine? I could send several data values of course in a single request 
> also. My python-client has tests for both of these scenarios, and they 
> seem to work fine?
> 
>   -  Micke
> 
> 
> On 24.02.2015 12:01, Heiko W.Rupp wrote:
>> Hey,
>> 
>> we need to have an endpoint that accepts a list of
>> 
>> <name, timestamp , value>  triples.
>> 
>> 
>> The current
>> 
>> @POST
>> @Path("/{tenantId}/metrics/numeric/data")
>> @Consumes(APPLICATION_JSON)
>> public void addNumericData(@Suspended final AsyncResponse asyncResponse, @PathParam("tenantId") String tenantId,
>>     List<NumericDataParams> paramsList) {
>> 
>> does not work (not technically).
>> 
>> A client (think "agent") will not send a list of dozens of metric values for one metric id. And then in a next request for another.
>> Especially not, when an agent is monitoring 10 resources and is then reporting their data. All reported metrics will have
>> a different id.
>> 
>> The other similarly challenged endpoint is
>> 
>> @POST
>> @Path("/{tenantId}/metrics/numeric/{id}/data")
>> @Consumes(APPLICATION_JSON)
>> public void addDataForMetric(@Suspended final AsyncResponse asyncResponse,
>>     @PathParam("tenantId") final String tenantId, @PathParam("id") String id, List<NumericDataPoint> dataPoints) {
>> 
>> The metric id is passed on the URL-Path and thus requires a new request per metric to report.
>> 
>> The above 2 endpoints may be consistent with their respective GET endpoints, but here we have the use case that I want
>> to read mass data for one single id.
>> Reporting use cases are different.
>> 
>> 
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> 
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