Hello! I am looking to upgrade a single-node ELK stack cluster running version 5.4.0 to 6.6.0 on RHEL 7.6. I have read through the ELK documentation and have found that a "rolling upgrade" is the way to go. I do have a few questions that I would like to confirm/clarify prior to moving forward with…

As long as you run the Upgrade Assistant and deal with anything it reports, you will be able to access the data. Make sure you take a backup too. We can't assist with search guard's impact sorry, you will need to ask them.

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ELK stack 5.4 to 6.6 Upgrade

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warkolm (Mark Walkom) November 10, 2020, 11:29pm 7

No, it should handle that gracefully.

Check out Support Matrix | Elastic

Topic		Replies	Views
ELK migration from 5.4 to 6.6 Elasticsearch	2	361	January 23, 2019
Dec 1st, 2017: [EN][Elastic Stack] Upgrading to 6.0.0! Advent Calendar	6	4135	August 23, 2018
Upgrade from ELK 5.4 to 7.6 Elasticsearch	7	714	May 17, 2020
Can I upgrade ELK from 5.0 to 6.4.0 directly Elasticsearch	2	419	September 26, 2018
ELK upgrade from 6.6 to 7.4.2 Elasticsearch	4	505	December 11, 2019

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ELK stack 5.4 to 6.6 Upgrade

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