es aggs Fielddata is disabled on text fields by default. Set fielddata=true on [inte

disabled on text fields by default. Set fielddata=true on [inte"/>

es aggs Fielddata is disabled on text fields by default. Set fielddata=true on [inte

按照官网es 执行aggs 的出现问题

Fielddata is disabled on text fields by default. Set fielddata=true on [inte

具体原因是聚合需要大量的内存，聚合前，需要将相应的字段开启聚合

PUT megacorp/_mapping/employee/
{"properties": {"interests": { "type":     "text","fielddata": true}}
}
GET /megacorp/employee/_search
{"aggs" : {"all_interests" : {"terms" : { "field" : "interests" },"aggs" : {"avg_age" : {"avg" : { "field" : "age" }}}}}
}

参考