ElasticSearch and NEST: How do you purge all documents from an index?

Question

I know how to delete an entire ElasticSearch index, but how do you purge all documents from an index?

My Motivation: I\'d like to have a \"ReIndex\" method that purg

Answer 1

You can use a delete by query. This will delete all documents that match * i.e. everything.

curl -XDELETE localhost:9200//_query?q=*

• Change localhost to the hostname that node is running on.

http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/docs-delete-by-query.html

Don't forget to optimize afterwards.

curl localhost:9200//_optimize