# Harvester\_buffer\_size - why increase it?

**URL:** https://discuss.elastic.co/t/harvester-buffer-size-why-increase-it/299226
**Category:** Beats
**Tags:** filebeat
**Created:** [March 9, 2022, 1:46pm UTC](https://discuss.elastic.co/t/harvester-buffer-size-why-increase-it/299226 "2022-03-09T13:46:07Z")
**Posts on this page:** 1
**Showing post:** 2

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### Author: ![Andrea\_Spacca](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/andrea_spacca/32/76976_2.png) [@Andrea\_Spacca](https://discuss.elastic.co/u/Andrea_Spacca)
#### Post date: [March 10, 2022, 9:58am UTC](https://discuss.elastic.co/t/harvester-buffer-size-why-increase-it/299226/2 "2022-03-10T09:58:29Z")

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hi @mikewillis

tweaking `harvester_buffer_size` value has impact on the performance. When optimisation is a concern it is possible to set the most efficient value that can vary according to the environment.

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