Kibana(Elasticsearch) count with uniq value

问题

I use kibana-4

I logged like this,

{user_id: 1, taget: A}
{user_id: 1, taget: B}
{user_id: 1, taget: B}
{user_id: 1, taget: B}
{user_id: 2, taget: A}
{user_id: 2, taget: C}

And I want to draw Pie Chart(target count) that result like this.

A: 2, B: 1, C: 1

It means count only one by each user. How can I do? Can I user only Kibana's visualize options? or add some elasticsearch input?

回答1:

In metrics field select Unique Count aggregation -> user_id field

In buckets field select terms aggregation -> target field

来源：https://stackoverflow.com/questions/37116114/kibanaelasticsearch-count-with-uniq-value