### Author:  [@dzyubanv](https://discuss.elastic.co/u/dzyubanv)
#### Post date: [February 5, 2018, 5:23pm UTC](https://discuss.elastic.co/t/required-plugins-for-es-5-6-3/118500/1 "2018-02-05T17:23:12Z")
I'm running es-5.6.3 on rhel.
It works well with single and multi node configuration and basic attributes in elasticsearch.yml (cluster.name, node.name, node.master, node.data, network.host, etc.).
But when I added the node.host: xyz and node.group: group1 attributes to the config file and restarded the es, then the es not started and failed to pass the bootstrap process, giving the error:
ERROR o.e.b.Bootstrsp Exception
Suppressed: java.lang.IllegalArgumEcception: unknown settings node.host...., node.group, please check if any required plugin are installed or check the braking changes documentation for removed settings
I did not install any plugins in the node's plugin folder yet.
Which one need to be installed and where can I get them ?
I read the es 5 plugin docs section (there are multiple plugins) but still unclear which plugins need to be added in my particular case to fix the issue ?
Thanks in advance.
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### Author:  [@Magnus\_Kessler](https://discuss.elastic.co/u/Magnus_Kessler)
#### Post date: [February 5, 2018, 7:00pm UTC](https://discuss.elastic.co/t/required-plugins-for-es-5-6-3/118500/2 "2018-02-05T19:00:37Z")
Hi Vadim,
I wonder where you picked up the additional settings you're trying to use. There's a `network.host` [setting](https://www.elastic.co/guide/en/elasticsearch/reference/current/important-settings.html#network.host), and you can set arbitrarily named attributes with `node.attr.`, which can be used for e.g. [shard allocation](https://www.elastic.co/guide/en/elasticsearch/reference/6.1/shard-allocation-filtering.html) rules in multi-rack environments.
Please remove any unknown settings from your `elasticsearch.yml` file, and the nodes should restart normally again.
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### Author:  [@dzyubanv](https://discuss.elastic.co/u/dzyubanv)
#### Post date: [February 5, 2018, 8:03pm UTC](https://discuss.elastic.co/t/required-plugins-for-es-5-6-3/118500/3 "2018-02-05T20:03:30Z")
Hey Magnus,
I'm experimenting to replace the old es-2 which is currently in use, with the es-5.6.3.
I was able to setup and run es-5 multinode cluster on multiple servers without node.host and node.group in es-5 config file.
In old es-2 in elasticsearch.yml there are:
node.host: some-host
node.group: some-group
node.group1: some-group1
and there are two old plugins inside the plugins folder - analysis-askme and delete-by-query
That is why I added node.host and node.group in es-5 config and this lead to error when starting the node - something like ... unknown setting (node.group) ... unknown setting (node.host)
I thought the error because there were no plugins in es-5 plugins folder and I moved those two plugins from es-2 to es-5 and started the es-5 then after restarting Im getting the error - something like using uncompatible versions of plugins.
And that is why Im trying to find the plugins which will allow me to run es-5 with the node.host and node.group in elasticsearch.yml
Appreciate your help Magnus.
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### Author:  [@warkolm](https://discuss.elastic.co/u/warkolm)
#### Post date: [February 5, 2018, 8:14pm UTC](https://discuss.elastic.co/t/required-plugins-for-es-5-6-3/118500/4 "2018-02-05T20:14:08Z")
The syntax for that changed in 5.X, see [https://www.elastic.co/guide/en/elasticsearch/reference/5.6/allocation-awareness.html](https://www.elastic.co/guide/en/elasticsearch/reference/5.6/allocation-awareness.html).
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### Author:  [@dzyubanv](https://discuss.elastic.co/u/dzyubanv)
#### Post date: [February 5, 2018, 11:24pm UTC](https://discuss.elastic.co/t/required-plugins-for-es-5-6-3/118500/5 "2018-02-05T23:24:19Z")
Thank you Mark and Magnus for quick responses.
Thanks to your guidelines I was able to fix the es-5 config yml file with node.attr.xyz
I still need to replace two old ES-2 plugins (analysis-askme and delete-by-query) to being able to use the raplacements in ES-5.
It there any way to figure out this ?
Appreciate your help.
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### Author:  [@warkolm](https://discuss.elastic.co/u/warkolm)
#### Post date: [February 5, 2018, 11:27pm UTC](https://discuss.elastic.co/t/required-plugins-for-es-5-6-3/118500/6 "2018-02-05T23:27:54Z")
Delete by query is now part of 5.X - [https://www.elastic.co/guide/en/elasticsearch/reference/5.6/docs-delete-by-query.html](https://www.elastic.co/guide/en/elasticsearch/reference/5.6/docs-delete-by-query.html)
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### Author:  [@dzyubanv](https://discuss.elastic.co/u/dzyubanv)
#### Post date: [February 5, 2018, 11:36pm UTC](https://discuss.elastic.co/t/required-plugins-for-es-5-6-3/118500/7 "2018-02-05T23:36:10Z")
Thanks Mark !!!
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [March 5, 2018, 11:36pm UTC](https://discuss.elastic.co/t/required-plugins-for-es-5-6-3/118500/8 "2018-03-05T23:36:31Z")
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