Hi, I have update druid to 0.9.2 and config broker and historical with druid.processing.numMergeBuffers=2.
When I try groupByStrategy = v2, I found that result can’t merge and groupByStrategy = v1 is work well.Could somebody help me? Thanks.
here is problem:
v1:
{
“queryType”:“groupBy”,
“dataSource”:“attribution_model_v1_test”,
“granularity”:“all”,
“dimensions”:[“source_type”],
“aggregations”:[
{
“type”:“count”,
“name”:“count”
}
],
“intervals”:[“2016-12-01T00:00:00+08:00/2017-01-01T00:00:00+08:00”],
“context”: {“groupByStrategy”: “v1”}
}
``
result:
[ {
“version” : “v1”,
“timestamp” : “2016-11-30T16:00:00.000Z”,
“event” : {
“count” : 32,
“source_type” : “0”
}
}, {
“version” : “v1”,
“timestamp” : “2016-11-30T16:00:00.000Z”,
“event” : {
“count” : 36,
“source_type” : “1”
}
}, {
“version” : “v1”,
“timestamp” : “2016-11-30T16:00:00.000Z”,
“event” : {
“count” : 24,
“source_type” : “2”
}
}, {
“version” : “v1”,
“timestamp” : “2016-11-30T16:00:00.000Z”,
“event” : {
“count” : 81,
“source_type” : “3”
}]
``
v2:
{
“queryType”:“groupBy”,
“dataSource”:“attribution_model_v1_test”,
“granularity”:“all”,
“dimensions”:[“source_type”],
“aggregations”:[
{
“type”:“count”,
“name”:“count”
}
],
“intervals”:[“2016-12-01T00:00:00+08:00/2017-01-01T00:00:00+08:00”],
“context”: {“groupByStrategy”: “v2”}
}
``
result:
[ {
“version” : “v1”,
“timestamp” : “2016-11-30T16:00:00.000Z”,
“event” : {
“count” : 28,
“source_type” : “0”
}
}, {
“version” : “v1”,
“timestamp” : “2016-11-30T16:00:00.000Z”,
“event” : {
“count” : 30,
“source_type” : “1”
}
}, {
“version” : “v1”,
“timestamp” : “2016-11-30T16:00:00.000Z”,
“event” : {
“count” : 24,
“source_type” : “2”
}
}, {
“version” : “v1”,
“timestamp” : “2016-11-30T16:00:00.000Z”,
“event” : {
“count” : 66,
“source_type” : “3”
}
}, {
“version” : “v1”,
“timestamp” : “2016-11-30T16:00:00.000Z”,
“event” : {
“count” : 1,
“source_type” : “0”
}
}, {
“version” : “v1”,
“timestamp” : “2016-11-30T16:00:00.000Z”,
“event” : {
“count” : 4,
“source_type” : “3”
}
}, {
“version” : “v1”,
“timestamp” : “2016-11-30T16:00:00.000Z”,
“event” : {
“count” : 3,
“source_type” : “1”
}
}, {
“version” : “v1”,
“timestamp” : “2016-11-30T16:00:00.000Z”,
“event” : {
“count” : 11,
“source_type” : “3”
}
}, {
“version” : “v1”,
“timestamp” : “2016-11-30T16:00:00.000Z”,
“event” : {
“count” : 3,
“source_type” : “0”
}
}, {
“version” : “v1”,
“timestamp” : “2016-11-30T16:00:00.000Z”,
“event” : {
“count” : 3,
“source_type” : “1”
}]
``