使用弹性搜索的术语聚合中的准确文档计数
Accurate document counts in terms aggregations with elastic search
我需要术语聚合的确切计数，我看到了弹性搜索 is not always accurate。我想知道是否有另一种解决方案来克服这个限制。
可以在聚合查询中设置size为0:
{
"aggs" : {
"products" : {
"terms" : {
"field" : "product",
"size" : 0
}
}
}
}
但是根据文档：
It is possible to not limit the number of terms that are returned by setting size to 0. Don’t use this on high-cardinality fields as this will kill both your CPU since terms need to be return sorted, and your network.
我需要术语聚合的确切计数，我看到了弹性搜索 is not always accurate。我想知道是否有另一种解决方案来克服这个限制。
可以在聚合查询中设置size为0:
{
"aggs" : {
"products" : {
"terms" : {
"field" : "product",
"size" : 0
}
}
}
}
但是根据文档：
It is possible to not limit the number of terms that are returned by setting size to 0. Don’t use this on high-cardinality fields as this will kill both your CPU since terms need to be return sorted, and your network.