# Question: ES response size limitations | 502 bad gateway
**URL:** https://discuss.elastic.co/t/question-es-response-size-limitations-502-bad-gateway/152447
**Category:** Elasticsearch
**Created:** [October 15, 2018, 8:09am UTC](https://discuss.elastic.co/t/question-es-response-size-limitations-502-bad-gateway/152447 "2018-10-15T08:09:37Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@omurbekjk](https://discuss.elastic.co/u/omurbekjk)
#### Post date: [October 15, 2018, 8:09am UTC](https://discuss.elastic.co/t/question-es-response-size-limitations-502-bad-gateway/152447/1 "2018-10-15T08:09:37Z")
We have large data in ES, we send request with the size limit: 1,000 and we do pagination to get remaining results.
Sometimes we get 502 bad gateway, hard to debug what went wrong.
I assumed if the response size is too large maybe the server is failing to serve it.
Also we do aggregation with the size limit: 10 000.
1. What is the recommended size for es query and aggregation?
2. How should we handle aggregation queries when we do pagination?
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### Author:  [@dadoonet](https://discuss.elastic.co/u/dadoonet)
#### Post date: [October 15, 2018, 8:42am UTC](https://discuss.elastic.co/t/question-es-response-size-limitations-502-bad-gateway/152447/2 "2018-10-15T08:42:29Z")
Can you share the query that failed?
> What is the recommended size for es query and aggregation?
The default values are the recommended ones.
> How should we handle aggregation queries when we do pagination?
Aggs are computed on the whole resultset whatever the page you're looking at.
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [November 12, 2018, 8:53am UTC](https://discuss.elastic.co/t/question-es-response-size-limitations-502-bad-gateway/152447/3 "2018-11-12T08:53:37Z")
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