# Discover: Gateway timeout error

**URL:** <https://discuss.elastic.co/t/discover-gateway-timeout-error/203597>\
**Category:** Kibana\
**Created:** [October 15, 2019, 9:00am UTC](https://discuss.elastic.co/t/discover-gateway-timeout-error/203597 "2019-10-15T09:00:13Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Ranjith\_B\_K](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/ranjith_b_k/32/55778_2.png) [@Ranjith\_B\_K](https://discuss.elastic.co/u/Ranjith_B_K)\
**Post date:** [October 15, 2019, 9:00am UTC](https://discuss.elastic.co/t/discover-gateway-timeout-error/203597/1 "2019-10-15T09:00:13Z")

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Hello,  
I am getting gateway timeout error while discovering the index in kibana, but for the same index, I am able to see dashboard and visualization.

![57%20PM](https://us1.discourse-cdn.com/elastic/original/3X/0/a/0aed4f04f00586e5f1122630cc11a5387a0193a6.png)

Thanks in advance.

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**Author:** ![azasypkin](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/azasypkin/32/42216_2.png) [@azasypkin](https://discuss.elastic.co/u/azasypkin)\
**Post date:** [October 15, 2019, 9:19am UTC](https://discuss.elastic.co/t/discover-gateway-timeout-error/203597/2 "2019-10-15T09:19:00Z")

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Hey @Ranjith_B_K,

Maybe Kibana has a very slow connection to Elasticsearch and can't retrieve all the records Discover wants to return (500 by default). Have you tried reducing the value of `discover:sampleSize` in Kibana Advanced Settings?

Best,  
Oleg

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<div class="post-metadata">

**Author:** ![Ranjith\_B\_K](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/ranjith_b_k/32/55778_2.png) [@Ranjith\_B\_K](https://discuss.elastic.co/u/Ranjith_B_K)\
**Post date:** [October 16, 2019, 10:50am UTC](https://discuss.elastic.co/t/discover-gateway-timeout-error/203597/3 "2019-10-16T10:50:57Z")

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Thanks @azasypkin, reducing the sampleSize value made it work.

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [November 13, 2019, 10:51am UTC](https://discuss.elastic.co/t/discover-gateway-timeout-error/203597/4 "2019-11-13T10:51:01Z")

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