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pythonelasticsearchelasticsearch-dslelasticsearch-py

What is the Elasticsearch-py equivalent to alias actions?


I am trying to implement multiples indices approach using elasticsearch-dsl. There are basically two steps:

1. Create aliases:

PUT /tweets_1/_alias/tweets_search 
PUT /tweets_1/_alias/tweets_index 

2. Change alias when necessary:

POST /_aliases
{
  "actions": [
    { "add":    { "index": "tweets_2", "alias": "tweets_search" }}, 
    { "remove": { "index": "tweets_1", "alias": "tweets_index"  }}, 
    { "add":    { "index": "tweets_2", "alias": "tweets_index"  }}  
  ]
}

I could only implement the step 1 using elasticsearch-py (not the dsl):

from elasticsearch.client import IndicesClient
IndicesClient(client).("tweets_1", "tweets_search")
IndicesClient(client).("tweets_1", "tweets_index")

I have no clue how to do that for step 2. So, what would be the equivalent in elasticsearch-dsl (or at least in elasticsearch-py)?


Solution

  • To implement that you need to use elasticsearch-py:

    from elasticsearch import Elasticsearch
    es = Elasticsearch()
    
    # use es.indices instead of instantiating IndicesClient
    es.indices.put_alias(index='tweets_1', name='tweets_search')
    es.indices.put_alias(index='tweets_1', name='tweets_index')
    
    es.indices.update_aliases({
      "actions": [
        { "add":    { "index": "tweets_2", "alias": "tweets_search" }}, 
        { "remove": { "index": "tweets_1", "alias": "tweets_index"  }}, 
        { "add":    { "index": "tweets_2", "alias": "tweets_index"  }}  
      ]
    })