Elasticsearch 5：禁止自动创建索引

#Elasticsearch 笔记

在默认配置下，向一个不存在的索引写数据时，会自动创建索引。禁用方式：

PUT _cluster/settings
{
    "persistent": {
        "action.auto_create_index": "false" 
    }
}

不禁用时的示例：

假如 school 索引之前不存在，现在向其中写入数据：

PUT school/student/1
{ "name": "letian" }

会发现添加数据成功。执行 GET school/_search 能查询到数据。

禁用时的示例

假如 school 索引之前不存在，现在向其中写入数据：

PUT school/student/1
{ "name": "letian" }

报错如下：

{
  "error": {
    "root_cause": [
      {
        "type": "index_not_found_exception",
        "reason": "no such index",
        "resource.type": "index_expression",
        "resource.id": "school",
        "index_uuid": "_na_",
        "index": "school"
      }
    ],
    "type": "index_not_found_exception",
    "reason": "no such index",
    "resource.type": "index_expression",
    "resource.id": "school",
    "index_uuid": "_na_",
    "index": "school"
  },
  "status": 404
}

使用下面的方式可以成功：

# 创建索引
PUT school

# 添加数据
PUT school/student/1
{ "name": "letian" }