Randomise hits results every iterations

Elastic Stack Elasticsearch
1

Is there any way to randomise the search hits every I rerun a query?

Due to the large number of hits, I just want to sample my results and do some statistical test on it. However, I have yet to find a way to randomise the search hits.

I read about function_score, however it seem to return the same of set of hits every time I rerun the query. I tried with different seed_number also, but there's no change after every rerun.

Here my code

    "size": 1000, 
    "sort": [{"gc_transaction": "desc"}],
    "query": {
        "function_score": {
            "query": {
                "bool": {
                    "filter": {
                        "range": {
                            "@timestamp": {
                                "gte": "now-30d", 
                                "lte": "now", 
                                "format": "strict_date_optional_time"
                            }
                        }
                    }, 
                    "must": [
                    ], 
                },
            },
            "random_score": {"seed": 3241325325}, 
            "score_mode": "sum"
        } 
    }
2

Have you tried omitting the seed parameter as in this first example?

3

Yes, I tried that firstly and because it didn't work, I tried with the seed paramater.

4

What if you remove the seed and the sort settings?

5

Then how would I paginate through the results? I want to get at least 10k results (my company lib for elasticsearch only allow 1k results each query). Is there other way to paginate without sorting?

6

Might have been usseful to mention this up front. Have you tried using a static seed parameter for all related requests without sorting while paging?

7

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