Also, why top_hits window inside aggregation buckets is 100. Does that mean, increasing the window size to 10 times will have a significant toll on performance ?

These limits are typically memory-related. Trying to carry too much back in a single response is a way to put servers under memory pressure - especially if your system is dealing with multiple concurrent users. For large result sets you'll want to break single requests into multiple using something…

Why search.max_buckets soft limit is 10000 ? What are the cons of increasing this size limit?

Elastic Stack Elasticsearch

Quang_D_Tr_n (Quang Dự Trần) November 9, 2019, 10:30am 2

Not sure but if the size is greater than 100, it might possibly cause error as in this thread

Topic		Replies	Views
Aggregation of more than 10000 records Elasticsearch	5	10711	September 20, 2018
Data Table - Max Bucket Limit - too_many_buckets_exception Elasticsearch	3	2655	June 10, 2022
Allowing size to be max [possibly inifinity] Elasticsearch	4	149	April 21, 2024
Overcoming search.max_buckets Limitation in AWS Elasticsearch for Shard-Level Aggregations Elasticsearch	3	204	April 24, 2024
Displaying top 1000 results only in elastic search Elasticsearch	6	7437	July 5, 2017

Why search.max_buckets soft limit is 10000 ? What are the cons of increasing this size limit?

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