# Elasticsearch bulk update is extremely slow

**URL:** https://discuss.elastic.co/t/elasticsearch-bulk-update-is-extremely-slow/78258
**Category:** Elasticsearch
**Created:** [March 11, 2017, 8:54pm UTC](https://discuss.elastic.co/t/elasticsearch-bulk-update-is-extremely-slow/78258 "2017-03-11T20:54:31Z")
**Posts on this page:** 1
**Showing post:** 10

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### Author: ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)
#### Post date: [March 12, 2017, 1:17pm UTC](https://discuss.elastic.co/t/elasticsearch-bulk-update-is-extremely-slow/78258/10 "2017-03-12T13:17:12Z")

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Have you tried increasing the [the internal batch size within logstash](https://www.elastic.co/guide/en/logstash/current/running-logstash-command-line.html#command-line-flags) (maybe to 1000?) to see if this has an impact? Does performance change if you set the refresh interval to 10s instead of -1?

As I said in my initial response, indexing into a new index may be considerably faster than updating the existing one.

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