How to copy some ElasticSearch data to a new index
Since ElasticSearch 2.3 you can now use the built in _reindex
API
for example:
POST /_reindex
{
"source": {
"index": "twitter"
},
"dest": {
"index": "new_twitter"
}
}
Or only a specific part by adding a filter/query
POST /_reindex
{
"source": {
"index": "twitter",
"query": {
"term": {
"user": "kimchy"
}
}
},
"dest": {
"index": "new_twitter"
}
}
Read more: https://www.elastic.co/guide/en/elasticsearch/reference/current/docs-reindex.html
The best approach would be to use elasticsearch-dump tool https://github.com/taskrabbit/elasticsearch-dump.
The real world example I used :
elasticdump \
--input=http://localhost:9700/.kibana \
--output=http://localhost:9700/.kibana_read_only \
--type=mapping
elasticdump \
--input=http://localhost:9700/.kibana \
--output=http://localhost:9700/.kibana_read_only \
--type=data