Can I use Lucene merge tool to merge Elasticsearch index like this?
https://cwiki.apache.org/confluence/display/solr/Merging+Indexes
Hi @sharon.c,
the short answer is: No.
You have to reindex your data using a client-side solution. I find the reindex helper of the Elasticsearch Python client quite handy for that.
In the Github issue 17447, we also work on reindex support across clusters in Elasticsearch directly.
Daniel
Daniel