# Replicas vs. Shards

**URL:** <https://discuss.elastic.co/t/replicas-vs-shards/29081>\
**Category:** Elasticsearch\
**Created:** [September 11, 2015, 12:29am UTC](https://discuss.elastic.co/t/replicas-vs-shards/29081 "2015-09-11T00:29:53Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![guardianmoon](https://avatars.discourse-cdn.com/v4/letter/g/779978/32.png) [@guardianmoon](https://discuss.elastic.co/u/guardianmoon)\
**Post date:** [September 11, 2015, 12:29am UTC](https://discuss.elastic.co/t/replicas-vs-shards/29081/1 "2015-09-11T00:29:53Z")

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Assuming you can afford enough hosts, is the best setup for an index a single shard with a complete replica on each node?

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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:** [September 11, 2015, 1:12am UTC](https://discuss.elastic.co/t/replicas-vs-shards/29081/2 "2015-09-11T01:12:03Z")

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Best for what use case?

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**Author:** ![guardianmoon](https://avatars.discourse-cdn.com/v4/letter/g/779978/32.png) [@guardianmoon](https://discuss.elastic.co/u/guardianmoon)\
**Post date:** [September 11, 2015, 1:20am UTC](https://discuss.elastic.co/t/replicas-vs-shards/29081/3 "2015-09-11T01:20:19Z")

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Setting up a cluster for internal use to monitor log events (2-3million documents a day). Making data available to users via Kibana to do aggregations, user counts, click counts, etc.

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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:** [September 11, 2015, 5:30am UTC](https://discuss.elastic.co/t/replicas-vs-shards/29081/4 "2015-09-11T05:30:14Z")

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Unless you need _super_ fast performance then no, it's probably not ideal and is just a waste of resources.

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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:** [July 5, 2017, 11:50pm UTC](https://discuss.elastic.co/t/replicas-vs-shards/29081/5 "2017-07-05T23:50:59Z")

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