es之索引的别名操作

1：增加别名

为索引school添加一个别名alias1：

1.1：创建索引

PUT student
{
  "settings": {"number_of_shards": 3 , "number_of_replicas": 1}
}
​
PUT school
{
  "settings": {"number_of_shards": 3 , "number_of_replicas": 1}
}

1.2：添加别名

POST _aliases
{
  "actions" : [{"add" : {"index" : "school" , "alias" : "in1"}}]
}
​
POST _aliases
{
  "actions" : [{"add" : {"index" : "student" , "alias" : "in1"}}]
}

2：查询别名

查询某个index下的别名：

GET school/_alias/*

3：删除别名

POST /_aliases
{
    "actions": [
        {"remove": {"index": "school", "alias": "in1"}}
    ]
}

4：修改别名

es没有修改别名的操作，只能先删除后添加

POST _aliases
{
  "actions" : [{"remove" : {"index" : "student" , "alias" : "in1"}}],
  "actions" : [{"add" : {"index" : "student" , "alias" : "in2"}}]
}