ElasticSearch6 报错blocked by: [FORBIDDEN/12/index read-only / allow delete (api)];

原文连接：https://blog.csdn.net/u013042707/article/details/84110531

方案：curl -XPUT -H "Content-Type: application/json" http://127.0.0.1:9200/_all/_settings -d '{"index.blocks.read_only_allow_delete": null}'