Delete all documents from index/type without deleting type

Question

I know one can delete all documents from a certain type via deleteByQuery.

Example:

curl -XDELETE \'http://localhost:9200/twitter/tweet/_query\' -d \         


        

Answer 1

I believe if you combine the delete by query with a match all it should do what you are looking for, something like this (using your example):

curl -XDELETE 'http://localhost:9200/twitter/tweet/_query' -d '{
    "query" : { 
        "match_all" : {}
    }
}'

Or you could just delete the type:

curl -XDELETE http://localhost:9200/twitter/tweet

Answer 2

If you want to delete document according to a date. You can use kibana console (v.6.1.2)

POST index_name/_delete_by_query
{
      "query" : {
              "range" : {
                 "sendDate" : {
                     "lte" : "2018-03-06"
                              }
                        }
                  }
}

Answer 3

You can delete documents from type with following query:

POST /index/type/_delete_by_query
{
    "query" : { 
        "match_all" : {}
    }
}

I tested this query in Kibana and Elastic 5.5.2

Answer 4

You have these alternatives:

1) Delete a whole index:

curl -XDELETE 'http://localhost:9200/indexName'             

example:

curl -XDELETE 'http://localhost:9200/mentorz'

For more details you can find here -https://www.elastic.co/guide/en/elasticsearch/reference/current/indices-delete-index.html

2) Delete by Query to those that match:

curl -XDELETE 'http://localhost:9200/mentorz/users/_query' -d                
    '{
        "query":
            {
                "match_all": {}
            }
    }'

*Here mentorz is an index name and users is a type

Answer 5

The above answers no longer work with ES 6.2.2 because of Strict Content-Type Checking for Elasticsearch REST Requests. The curl command which I ended up using is this:

curl -H'Content-Type: application/json' -XPOST 'localhost:9200/yourindex/_doc/_delete_by_query?conflicts=proceed' -d' { "query": { "match_all": {} }}'

Answer 6

The Delete-By-Query plugin has been removed in favor of a new Delete By Query API implementation in core. Read here

curl -XPOST 'localhost:9200/twitter/tweet/_delete_by_query?conflicts=proceed&pretty' -d'
{
    "query": {
        "match_all": {}
    }
}'