How to copy some ElasticSearch data to a new index

Question

Let\'s say I have movie data in my ElasticSearch and I created them like this:

curl -XPUT \"http://192.168.0.2:9200/movies/movie/1\" -d\'
{
    \"title\": \"         


        

Answer 1

Check out knapsack: https://github.com/jprante/elasticsearch-knapsack

Once you have the plugin installed and working, you could export part of your index via query. For example:

curl -XPOST 'localhost:9200/test/test/_export' -d '{
"query" : {
    "match" : {
        "myfield" : "myvalue"
    }
},
"fields" : [ "_parent", "_source" ]
}'

This will create a tarball with only your query results, which you can then import into another index.