Elastic won't start after upgrade 5.3 to 5.6 with x-pack plugin

[Miroslav Lachman]

Miroslav Lachman wrote on 2018/04/02 16:29:
> I upgraded Elasticsearch to 5.6 but it won't start with x-pack (also 
> upgraded to 5.6)

[...]

> [2018-04-02T16:24:43,926][INFO ][o.e.p.PluginsService     ] [Ananas] 
> loaded plugin [x-pack]
> [2018-04-02T16:24:45,869][DEBUG][o.e.a.ActionModule       ] Using REST 
> wrapper from plugin org.elasticsearch.xpack.XPackPlugin
> [2018-04-02T16:24:46,735][ERROR][o.e.b.Bootstrap          ] Exception
> org.elasticsearch.ElasticsearchException: X-Pack is not supported and 
> Machine Learning is not available for [freebsd-x86_64]; you can use the 
> other X-Pack features (unsupported) by setting xpack.ml.enabled: false 
> in elasticsearch.yml
>          at 

[...]

> I don't know where to start to fix this.
> Can somebody help?

It seems that the only way is to disable Machine Learning (as error 
message says - xpack.ml.enabled: false)

Miroslav Lachman