elasticsearch - Elasticsearch别名和索引(相同的ID？)

Question

我有一个关于Elasticsearch的问题。

如果我有两个索引IndexA和IndexB。

我将ID为“1”的文档docA放入了IndexA，并将ID为“1”的文档docB放入了IndexB。这些文档的文档类型相同，但正文不同(结构相同但值不同)。

如果我创建一个别名“alias1”同时指向IndexA和IndexB并获取以下内容的请求，将会发生什么？

响应= es_client.get(index =“alias1”，doc_type =“doc_type”，id =“1”)

Answer 1

测试非常容易，但是总之，您不能使用和别名为指向多个索引的文档颁发GET!

PUT index1/doc/1
{ "test": 1 }

PUT index2/doc/1
{ "test": 2 }

POST _aliases
{
    "actions" : [
        { "add" : { "index" : "index1", "alias" : "alias1" } },
        { "add" : { "index" : "index2", "alias" : "alias1" } }
    ]
}

GET alias1/doc/1

=>

{
  "error": {
    "root_cause": [
      {
        "type": "illegal_argument_exception",
        "reason": "Alias [alias1] has more than one indices associated with it [[index2, index1]], can't execute a single index op"
      }
    ],
    "type": "illegal_argument_exception",
    "reason": "Alias [alias1] has more than one indices associated with it [[index2, index1]], can't execute a single index op"
  },
  "status": 400
}