Copy data from / to elasticsearch very fast
elasticdump is a very nice tool for copying a single index to another server.
But sometimes, you need to copy more than a single index, and as fast as possible!
This why I build elasticcopy.
elasticcopy is fast, because it use multi threads to copy data in parallel.
The parallel unit is a shard, if you want to copy 12 indices of 3 shards, this will create 36 tasks.
elasticcopy --source=http://localhost:9200 --target=http://prod:9200 --indices=events-1,events-2 --threads=12