# Elasticsearch 7.17.8 with error update

**URL:** <https://community.graylog.org/t/elasticsearch-7-17-8-with-error-update/27274>\
**Category:** Graylog Central (peer support)\
**Tags:** elastic\
**Created:** [January 13, 2023, 10:42am UTC](https://community.graylog.org/t/elasticsearch-7-17-8-with-error-update/27274 "2023-01-13T10:42:41Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![ihe](https://avatars.discourse-cdn.com/v4/letter/i/a88e57/32.png) [@ihe](https://community.graylog.org/u/ihe)\
**Post date:** [January 13, 2023, 11:30am UTC](https://community.graylog.org/t/elasticsearch-7-17-8-with-error-update/27274/2 "2023-01-13T11:30:14Z")

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there are a few possibilites to go from an higher elastic version than 7.10 to opensearch.

- install a fresh graylog with opensearch on the side of the old one, and run both until no data is left on your old graylog due to data retention
- dump the elastic database and import it to opensearch / reindex the whole thing on opensearch
- get rid of the extra indices build by elastic which prevent the migration to opensearch. This is quite difficult.

all of them are painful, but I have not found a better solution. :-/

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