# Upgrade Assistant showing critical message

**URL:** <https://discuss.elastic.co/t/upgrade-assistant-showing-critical-message/254301>\
**Category:** Elasticsearch\
**Created:** [November 4, 2020, 4:22pm UTC](https://discuss.elastic.co/t/upgrade-assistant-showing-critical-message/254301 "2020-11-04T16:22:11Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![rudraram](https://avatars.discourse-cdn.com/v4/letter/r/57b2e6/32.png) [@rudraram](https://discuss.elastic.co/u/rudraram)\
**Post date:** [November 4, 2020, 4:22pm UTC](https://discuss.elastic.co/t/upgrade-assistant-showing-critical-message/254301/1 "2020-11-04T16:22:11Z")

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Hi Team,  
Wondering how to resolve this critical warning in Upgrade Assitant  
currently we are on elasticsearch 6.8 version and planning to upgrade to Elastic 7.9

I see following message tagged as critical  
" Bulk thread pool renamed to write thread poo

the write threadpool is now used for all writes (nodes impacted: [elasticprod\_data004, elasticprod\_coordinating003, elasticprod\_data0011, elasticprod\_data006, elasticprod\_data005, elasticprod\_coordinating002, elasticprod\_data0010, elasticprod\_data001, elasticprod\_data002, elasticprod\_data0012, elasticprod\_master003, elasticprod\_master002, elasticprod\_data007, elasticprod\_data008, elasticprod\_data003, elasticprod\_coordinating001, elasticprod\_master001])"

Wondering how to rectify this?

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**Author:** ![DavidTurner](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/davidturner/32/22453_2.png) [@DavidTurner](https://discuss.elastic.co/u/DavidTurner)\
**Post date:** [November 4, 2020, 5:41pm UTC](https://discuss.elastic.co/t/upgrade-assistant-showing-critical-message/254301/2 "2020-11-04T17:41:20Z")

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> [@rudraram](#):
>
> Bulk thread pool renamed to write thread pool

You have adjusted the settings for the `bulk` threadpool in the `elasticsearch.yml` config files on the listed nodes. The fix is to remove all settings that begin `thread_pool.bulk...` from these config files.

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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:** [December 2, 2020, 5:41pm UTC](https://discuss.elastic.co/t/upgrade-assistant-showing-critical-message/254301/3 "2020-12-02T17:41:22Z")

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