# To have replicas or not?
**URL:** https://discuss.elastic.co/t/to-have-replicas-or-not/119669
**Category:** Elasticsearch
**Created:** [February 13, 2018, 4:03pm UTC](https://discuss.elastic.co/t/to-have-replicas-or-not/119669 "2018-02-13T16:03:42Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@lecko](https://discuss.elastic.co/u/lecko)
#### Post date: [February 13, 2018, 4:03pm UTC](https://discuss.elastic.co/t/to-have-replicas-or-not/119669/1 "2018-02-13T16:03:42Z")
Hi,
I am doing tests with cluster of 5 elasticsearch nodes and I see big difference in performance depending on how elasticsearch cluster is configured. When the index is configured with 8 shards and no replicas, I see it can process up to 60 000 msg per second. When I reconfigure that to 8 shards and 1 replica, the performace drops mnore than half of that. (15-20 000). But the cluster with replicas is much more stable, it runs even vhen node is down. This is not the case with 0 replicas, when 1 elasticsearch node is stoppped, it switches cluster ot red and it stops processing new messages.
Question- Is there any other config or other way, that I could keep no replicas but for the cluster to be a bit more stable in case of stop of one node. Some dynamic attribute to tell ignore those errors, just continue.. \_-) ? Thanks.
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### Author:  [@warkolm](https://discuss.elastic.co/u/warkolm)
#### Post date: [February 14, 2018, 12:47am UTC](https://discuss.elastic.co/t/to-have-replicas-or-not/119669/2 "2018-02-14T00:47:25Z")
Nope, there's not.
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [March 14, 2018, 12:47am UTC](https://discuss.elastic.co/t/to-have-replicas-or-not/119669/3 "2018-03-14T00:47:27Z")
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