# "Discovery configuration is required in production mode critical" in Upgrade Assiant

**URL:** <https://discuss.elastic.co/t/discovery-configuration-is-required-in-production-mode-critical-in-upgrade-assiant/191372>\
**Category:** Kibana\
**Created:** [July 19, 2019, 10:33am UTC](https://discuss.elastic.co/t/discovery-configuration-is-required-in-production-mode-critical-in-upgrade-assiant/191372 "2019-07-19T10:33:02Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![psyapathy](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/psyapathy/32/50265_2.png) [@psyapathy](https://discuss.elastic.co/u/psyapathy)\
**Post date:** [July 19, 2019, 10:33am UTC](https://discuss.elastic.co/t/discovery-configuration-is-required-in-production-mode-critical-in-upgrade-assiant/191372/1 "2019-07-19T10:33:02Z")

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Hello!

I want upgrade Elastic Stack fron 6.6 to 7.0.  
In Upgrade Assistand i get critical error:

Discovery configuration is required in production mode  
nodes which do not have discovery configured: [eBB7xaH]  
I have one server for Elastic Stack.

How to fix? Anyone encountered?  
Thank you

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**Author:** ![tylersmalley](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/tylersmalley/32/8833_2.png) [@tylersmalley](https://discuss.elastic.co/u/tylersmalley)\
**Post date:** [July 19, 2019, 8:17pm UTC](https://discuss.elastic.co/t/discovery-configuration-is-required-in-production-mode-critical-in-upgrade-assiant/191372/2 "2019-07-19T20:17:05Z")

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You can find out more about this deprecation here: [https://www.elastic.co/guide/en/elasticsearch/reference/current/breaking-changes-7.0.html#\_discovery\_configuration\_is\_required\_in\_production](https://www.elastic.co/guide/en/elasticsearch/reference/current/breaking-changes-7.0.html#_discovery_configuration_is_required_in_production)

There should be a link to this from the Upgrade Assistant.

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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:** [August 16, 2019, 8:17pm UTC](https://discuss.elastic.co/t/discovery-configuration-is-required-in-production-mode-critical-in-upgrade-assiant/191372/3 "2019-08-16T20:17:08Z")

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