# Issue with node discovery

**URL:** <https://discuss.elastic.co/t/issue-with-node-discovery/105547>\
**Category:** Elasticsearch\
**Created:** [October 27, 2017, 9:57am UTC](https://discuss.elastic.co/t/issue-with-node-discovery/105547 "2017-10-27T09:57:36Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![Vivek\_Samaga](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/vivek_samaga/32/43285_2.png) [@Vivek\_Samaga](https://discuss.elastic.co/u/Vivek_Samaga)\
**Post date:** [October 27, 2017, 9:57am UTC](https://discuss.elastic.co/t/issue-with-node-discovery/105547/1 "2017-10-27T09:57:36Z")

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I have a 2 node ES cluster setup for testing purpose (i know this is not recommended) everything was working fine until i increased the JVM heap to 8G for performance purpose.  
Now this is throwing below exception  
To add to this we had restored snapshot from different cluster.

```
[2017-10-27T04:09:23,661][INFO][o.e.d.DiscoveryModule] [monelkescrt00.northamerica. ******.net] using discovery type [zen]
[2017-10-27T04:09:27,671][INFO][o.e.n.Node] [monelkescrt00.northamerica. ******.net] initialized
[2017-10-27T04:09:27,671][INFO][o.e.n.Node] [monelkescrt00.northamerica. ******.net] starting ...
[2017-10-27T04:09:27,905][INFO][o.e.t.TransportService] [monelkescrt00.northamerica.******.net] publish_address {10.162.***.235:9300}, bound_addresses {10.162.***.235:9300}
[2017-10-27T04:09:27,920][INFO][o.e.b.BootstrapChecks] [monelkescrt00.northamerica. ******.net] bound or publishing to a non-loopback or non-link-local address, enforcing bootstrap checks
[2017-10-27T04:09:31,599][INFO][o.e.d.z.ZenDiscovery] [monelkescrt00.northamerica.******.net] failed to send join request to master [{monelkescrt01.northamerica.******.net}{Gn5tyVUAQKmetNeJGyjSFg}{np_tpNVlRqSakfrGFS7RaA}{10.162. ***.234}{10.162.***.234:9300}], reason [RemoteTransportException[[monelkescrt01.northamerica.******.net][10.162.***.234:9300][internal:discovery/zen/join]]; nested: IllegalStateException[index [access-2017.08.22/5sOKc68LSIqzWUNNiyNA5g] version not supported: 5.5.2 the node version is: 5.5.1]; ]
```

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<div class="post-metadata">

**Author:** ![Igor\_Motov](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/igor_motov/32/45193_2.png) [@Igor\_Motov](https://discuss.elastic.co/u/Igor_Motov)\
**Post date:** [October 28, 2017, 12:45am UTC](https://discuss.elastic.co/t/issue-with-node-discovery/105547/2 "2017-10-28T00:45:55Z")

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Did you install the same version of ES on both nodes? Which version is it?

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**Author:** ![Vivek\_Samaga](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/vivek_samaga/32/43285_2.png) [@Vivek\_Samaga](https://discuss.elastic.co/u/Vivek_Samaga)\
**Post date:** [October 30, 2017, 8:40am UTC](https://discuss.elastic.co/t/issue-with-node-discovery/105547/3 "2017-10-30T08:40:26Z")

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Before it was 5.5.1 on 1 and 5.5.2 on 2nd node. Then i tried having the same version on both nodes but not able to download particular version on both the nodes.

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<div class="post-metadata">

**Author:** ![Igor\_Motov](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/igor_motov/32/45193_2.png) [@Igor\_Motov](https://discuss.elastic.co/u/Igor_Motov)\
**Post date:** [October 30, 2017, 12:48pm UTC](https://discuss.elastic.co/t/issue-with-node-discovery/105547/4 "2017-10-30T12:48:25Z")

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> [@Vivek\_Samaga](#):
>
> Then i tried having the same version on both nodes but not able to download particular version on both the nodes

Why?

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<div class="post-metadata">

**Author:** ![Vivek\_Samaga](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/vivek_samaga/32/43285_2.png) [@Vivek\_Samaga](https://discuss.elastic.co/u/Vivek_Samaga)\
**Post date:** [October 31, 2017, 7:01am UTC](https://discuss.elastic.co/t/issue-with-node-discovery/105547/5 "2017-10-31T07:01:27Z")

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I got it working, upgraded both nodes to 5.5.2 now all is well.

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<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:** [November 28, 2017, 7:01am UTC](https://discuss.elastic.co/t/issue-with-node-discovery/105547/6 "2017-11-28T07:01:35Z")

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