# Can I reload after a setting change in elasticsearch.yml? **URL:** \ **Category:** Elasticsearch\ **Created:** [May 16, 2023, 12:22pm UTC](https://discuss.elastic.co/t/can-i-reload-after-a-setting-change-in-elasticsearch-yml/333565 "2023-05-16T12:22:32Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![GenSSC](https://avatars.discourse-cdn.com/v4/letter/g/258eb7/32.png) [@GenSSC](https://discuss.elastic.co/u/GenSSC)\ **Post date:** [May 16, 2023, 12:22pm UTC](https://discuss.elastic.co/t/can-i-reload-after-a-setting-change-in-elasticsearch-yml/333565/1 "2023-05-16T12:22:32Z")
Is there a way to only reload the settings and not the whole stack ? ---
**Author:** ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)\ **Post date:** [May 16, 2023, 12:24pm UTC](https://discuss.elastic.co/t/can-i-reload-after-a-setting-change-in-elasticsearch-yml/333565/2 "2023-05-16T12:24:12Z")
If you have made changes to the Elasticsearch config you will need to restart the node(s) for it to take effect. ---
**Author:** ![GenSSC](https://avatars.discourse-cdn.com/v4/letter/g/258eb7/32.png) [@GenSSC](https://discuss.elastic.co/u/GenSSC)\ **Post date:** [May 16, 2023, 12:40pm UTC](https://discuss.elastic.co/t/can-i-reload-after-a-setting-change-in-elasticsearch-yml/333565/3 "2023-05-16T12:40:39Z")
and if I do it node by node, there won't be any impact on the users right? That would also be true for rebooting one master at the time? ---
**Author:** ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)\ **Post date:** [May 16, 2023, 1:08pm UTC](https://discuss.elastic.co/t/can-i-reload-after-a-setting-change-in-elasticsearch-yml/333565/4 "2023-05-16T13:08:40Z")
What kind of changes have you made? ---
**Author:** ![GenSSC](https://avatars.discourse-cdn.com/v4/letter/g/258eb7/32.png) [@GenSSC](https://discuss.elastic.co/u/GenSSC)\ **Post date:** [May 16, 2023, 1:36pm UTC](https://discuss.elastic.co/t/can-i-reload-after-a-setting-change-in-elasticsearch-yml/333565/5 "2023-05-16T13:36:40Z")
I removed some deprecated settings that were giving me critical errors in the Upgrade Assistant. ---
**Author:** ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)\ **Post date:** [May 16, 2023, 1:41pm UTC](https://discuss.elastic.co/t/can-i-reload-after-a-setting-change-in-elasticsearch-yml/333565/6 "2023-05-16T13:41:22Z")
Then I suspect you should be able to do a rolling restart. If you have changed settings to enable or disable TLS you would have needed to do a full cluster restart. ---
**Author:** ![GenSSC](https://avatars.discourse-cdn.com/v4/letter/g/258eb7/32.png) [@GenSSC](https://discuss.elastic.co/u/GenSSC)\ **Post date:** [May 16, 2023, 2:40pm UTC](https://discuss.elastic.co/t/can-i-reload-after-a-setting-change-in-elasticsearch-yml/333565/7 "2023-05-16T14:40:30Z")
@Christian_Dahlqvist Ok I tried rebooting one of my 3 nodes and Elasticsearch wouldn't start. I have a critical error about "discovery.zen.ping.unicast.hosts" being deprecated so I commented it in elasticsearch.yml. It didn't like that so I uncommented it and I was able to start the service. If I don't remove it, I will still have my critical error so that's an issue... I got this error in the log : bootstrap check failure [1] of [1]: the default discovery settings are unsuitable for production use; at least one of [discovery.seed\_hosts, discovery.seed\_providers, cluster.initial\_master\_nodes] must be configured ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [June 13, 2023, 2:40pm UTC](https://discuss.elastic.co/t/can-i-reload-after-a-setting-change-in-elasticsearch-yml/333565/8 "2023-06-13T14:40:41Z")
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