Unique count > Count in kibana

[MrZhangisGood (Mr Zhang)]

Hi ,

I am using elasticsearch 5.4.2 and kibana also 5.4.2 . I want to check distinct counts for a string value field in elasticsearch .
Unique count greater than Count

Count

Unique count

[Christian_Dahlqvist]

In order to perform well at scale the cardinality aggregation is an approximation, although you can tune this to some extent. The reason behind this is described well in this post.

[MrZhangisGood (Mr Zhang)]

Thank you