安装Elasticsearch-6.5.1时（windows平台），启动Elasticsearch，点击bin/elasticsearch.bat，启动报错
ElasticsearchException[X-Pack is not supported and Machine Learning is not available for [windows-x86]; you can use the other X-Pack features (unsupported) by setting xpack.ml.enabled: false in elasticsearch.yml]
解决：在config/elasticsearch.yml添加一条配置：
xpack.ml.enabled: false
地址：https://blog.csdn.net/fanrenxiang/article/details/81358332