ElasticSearch中索引的别名

给索引增加别名：

POST _aliases
{
  "actions" : [{"add" : {"index" : "visions_search_shihe" , "alias" : "visions_search_sh"}}]
}

删除索引别名：

POST /_aliases
{
    "actions": [
        {"remove": {"index": "visions_search_shihe", "alias": "visions_search_sh"}}
    ]
}

给索引修改别名：

POST /_aliases
{
  "actions": [
    { "remove": { "index": "visions_search_shihe", "alias": "visions_search_sh" }},
    { "add":    { "index": "visions_search_all_sh", "alias": "visions_search_sh" }}
  ]
}