# Elasticsearch indexing performance: throttle merging

**URL:** <https://discuss.elastic.co/t/elasticsearch-indexing-performance-throttle-merging/71549>\
**Category:** Elasticsearch\
**Created:** [January 13, 2017, 5:14pm UTC](https://discuss.elastic.co/t/elasticsearch-indexing-performance-throttle-merging/71549 "2017-01-13T17:14:14Z")\
**Posts on this page:** 1\
**Showing post:** 6

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**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\
**Post date:** [January 16, 2017, 2:54am UTC](https://discuss.elastic.co/t/elasticsearch-indexing-performance-throttle-merging/71549/6 "2017-01-16T02:54:12Z")

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The best answer to those is don't disable merging as I mentioned.

Otherwise yes merges use IO, if you disable them then they won't happen and a force merge is required.

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_[View the full topic](https://discuss.elastic.co/t/elasticsearch-indexing-performance-throttle-merging/71549)._