Error using Pre-Aggregates (2.4-RC2)

[Uli Schulze-Eyssing]

Hi,

I´m trying to use pre-aggregates. I created a test-metric with datapoints having tags x and y

Now I POST this to my api-interface

<host>/api/rollup

{
    "metric": "t2",
    "timestamp": 1513685880,
    "value": 8,
    "tags": {
       "x": "1"
    },
    "groupByAggregator": "SUM"
}

I get an error and in the logs:

PutDataPointRpc: Invalid tag name with value [SUM]: null: metric=t2 ts=1513685880 value=8 null=SUMx=1 groupByAggregator=SUM interval=null aggregator=null

Seems that opentsdb wants to set _aggregate=SUM, but was missing the "_aggregate".

Whar am I missing? 

Is the tsd.rollups.config mandatory?

Many thanks for any hint,

Uli

[ManOLamancha]

Ah yeah I haven't tested this without enabling tsd.rollups.config. https://github.com/OpenTSDB/opentsdb/issues/1137