Exception in thread "main" java.lang.IllegalArgumentException: unknown setting [index.client.transport.sniff] please check that any required plugins are installed, or check the breaking changes documentation for removed settings
Suppressed: java.lang.IllegalArgumentException: unknown setting [index.cluster.name] please check that any required plugins are installed, or check the breaking changes documentation for removed settings
... 51 more
Suppressed: java.lang.IllegalArgumentException: unknown setting [index.cluster.name] please check that any required plugins are installed, or check the breaking changes documentation for removed settings
... 51 more
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laoyang360 - 《一本书讲透Elasticsearch》作者，Elastic认证工程师 [死磕Elasitcsearch]知识星球地址：http://t.cn/RmwM3N9；微信公众号：铭毅天下; 博客：https://elastic.blog.csdn.net
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或者插件安装失败了。
首先，看看9200端口访问有没有问题？head插件看下。
其次，最近安装什么插件了，验证下功能是否正常。
最后，上两步确认ok了，再api连接下。
Cheetah
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index.cluster.name----“cluster.name”