CODEWITHSUNDEEP
javaelasticsearch
user3285241
user3285241

Reputation: 359

Elasticsearch - build scroll id manually

I have a case in which I shouldn't make requests to get the scroll_id - I have to manage it somehow so I can get the URL for next pages offline (I am making GET requests against a certain site that exposes their Elasticsearch instance)

So basically, I have a certain URL containing Elasticsearch query and it returns me only 20 results out of 40(20 per request is the max size). I want to get an URL for the next pages - so given I had the connection to the Internet, I would just get the scroll_id from the first request and use it to make next ones.

But I want to avoid it and see if I can have a helper class that builds scroll ids by itself.

Is it possible?

Thanks in advance.

Upvotes: 0

Views: 377

Answers (1)

Val
Val

Reputation: 217314

The scroll_id ties directly to some internal state (i.e. the context of the initial query) managed by ES and which eventually times out after the a given period of time.

Once the period times out, the search context is cleared and the scroll id is not valid anymore. I'm afraid there's no way you can craft a scroll id by hand.

But if the result set contains 40 results ans you can only retrieve 20 at a time, I suggest you simple set from: 20 in your second query and you'll be fine.

Upvotes: 1

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