Add index alias API
editAdd index alias API
editCreates or updates an index alias.
An index alias is a logical name used to reference one or more indices.
Most Elasticsearch APIs accept an index alias in place of an index name.
PUT /twitter/_alias/alias1
Request
editPUT /<index>/_alias/<alias>
POST /<index>/_alias/<alias>
PUT /<index>/_aliases/<alias>
POST /<index>/_aliases/<alias>
Path parameters
edit-
<index> -
(Required, string) Comma-separated list or wildcard expression of index names to add to the alias.
To add all indices in the cluster to the alias, use a value of
_all. -
<alias> - (Required, string) Name of the index alias to create or update.
Query parameters
edit-
master_timeout -
(Optional, time units) Specifies the period of time to wait for
a connection to the master node. If no response is received before the timeout
expires, the request fails and returns an error. Defaults to
30s. -
timeout -
(Optional, time units) Specifies the period of time to wait for
a response. If no response is received before the timeout expires, the request
fails and returns an error. Defaults to
30s.
Request body
edit-
filter -
(Required, query object) Filter query used to limit the index alias.
If specified, the index alias only applies to documents returned by the filter. Filter query used to limit the index alias.
If specified, the index alias only applies to documents returned by the filter.
-
routing - (Optional, string) Custom routing value used to route operations to a specific shard.
Examples
editAdd a time-based alias
editThe following request creates an alias, 2030,
for the logs_20302801 index.
PUT /logs_20302801/_alias/2030
Add a user-based alias
editFirst, create an index, users,
with a mapping for the user_id field:
PUT /users
{
"mappings" : {
"properties" : {
"user_id" : {"type" : "integer"}
}
}
}
Then add the index alias for a specific user, user_12:
PUT /users/_alias/user_12
{
"routing" : "12",
"filter" : {
"term" : {
"user_id" : 12
}
}
}
Add an alias during index creation
editYou can use the create index API to add an index alias during index creation.
PUT /logs_20302801
{
"mappings" : {
"properties" : {
"year" : {"type" : "integer"}
}
},
"aliases" : {
"current_day" : {},
"2030" : {
"filter" : {
"term" : {"year" : 2030 }
}
}
}
}