# Getting GC overhead on Elasticsearch

**URL:** <https://discuss.elastic.co/t/getting-gc-overhead-on-elasticsearch/245526>\
**Category:** Elasticsearch\
**Created:** [August 19, 2020, 6:12am UTC](https://discuss.elastic.co/t/getting-gc-overhead-on-elasticsearch/245526 "2020-08-19T06:12:23Z")\
**Posts on this page:** 1\
**Showing post:** 4

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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:** [August 19, 2020, 6:35am UTC](https://discuss.elastic.co/t/getting-gc-overhead-on-elasticsearch/245526/4 "2020-08-19T06:35:28Z")

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You really need to upgrade urgently, 5.X has been [EOL](https://www.elastic.co/support/eol) for quite some time now. Upgrading will also bring performance improvements to help with this.

You also need to reduce your shard count. See [How do I increase or reduce the shard count of an existing index?](https://discuss.elastic.co/t/how-do-i-increase-or-reduce-the-shard-count-of-an-existing-index/242704) for some ideas.

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