# What are the minimum nodes required for Elastic 5 cluster

**URL:** <https://discuss.elastic.co/t/what-are-the-minimum-nodes-required-for-elastic-5-cluster/148222>\
**Category:** Elasticsearch\
**Created:** [September 11, 2018, 9:30pm UTC](https://discuss.elastic.co/t/what-are-the-minimum-nodes-required-for-elastic-5-cluster/148222 "2018-09-11T21:30:15Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![rajkumar.m](https://avatars.discourse-cdn.com/v4/letter/r/e9bcb4/32.png) [@rajkumar.m](https://discuss.elastic.co/u/rajkumar.m)\
**Post date:** [September 11, 2018, 9:30pm UTC](https://discuss.elastic.co/t/what-are-the-minimum-nodes-required-for-elastic-5-cluster/148222/1 "2018-09-11T21:30:15Z")

</div>

Hi,

I have upgraded my cluster from Elastic 4 to Elastic 5.  
I have observed that my cluster is not coming until all the nodes comes up with elastic process.  
In my old version, i was able to bring up cluster with minimum one node.  
but whereas in ELK 5 all the nodes are waiting to come up and then cluster starts.  
Please advise.

Thanks

---

<div class="post-metadata">

**Author:** ![nikhil.k](https://avatars.discourse-cdn.com/v4/letter/n/5daacb/32.png) [@nikhil.k](https://discuss.elastic.co/u/nikhil.k)\
**Post date:** [September 12, 2018, 10:45am UTC](https://discuss.elastic.co/t/what-are-the-minimum-nodes-required-for-elastic-5-cluster/148222/2 "2018-09-12T10:45:46Z")

</div>

Hi @rajkumar.m,

```
What are the minimum nodes required for Elastic 5 cluster

```

It is perfectly fine to have a cluster with only a single node in it.  
Also, request you to be more details(setup details, error/warnings, etc.) so that I can give you a proper solution to it.

Regards  
Nikhil Kapoor

---

<div class="post-metadata">

**Author:** ![rajkumar.m](https://avatars.discourse-cdn.com/v4/letter/r/e9bcb4/32.png) [@rajkumar.m](https://discuss.elastic.co/u/rajkumar.m)\
**Post date:** [September 12, 2018, 3:24pm UTC](https://discuss.elastic.co/t/what-are-the-minimum-nodes-required-for-elastic-5-cluster/148222/3 "2018-09-12T15:24:41Z")

</div>

we have observed that we were unable to run curl command in order to get the cluster details after the elastic started on first node. i was able to see cluster info only after all the nodes joins.  
and when we start second node, we see the below messages.  
[INFO][o.e.x.m.e.l.LocalExporter] waiting for elected master node [{XX.XXXXXXXXX}] to setup local exporter [default\_local] (does it have x-pack installed?)

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [October 10, 2018, 3:38pm UTC](https://discuss.elastic.co/t/what-are-the-minimum-nodes-required-for-elastic-5-cluster/148222/4 "2018-10-10T15:38:49Z")

</div>

This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.