# Can I use Lucene merge tool to merge Elasticsearch index
**URL:** https://discuss.elastic.co/t/can-i-use-lucene-merge-tool-to-merge-elasticsearch-index/50457
**Category:** Elasticsearch
**Created:** [May 19, 2016, 3:22pm UTC](https://discuss.elastic.co/t/can-i-use-lucene-merge-tool-to-merge-elasticsearch-index/50457 "2016-05-19T15:22:09Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@sharon.c](https://discuss.elastic.co/u/sharon.c)
#### Post date: [May 19, 2016, 3:22pm UTC](https://discuss.elastic.co/t/can-i-use-lucene-merge-tool-to-merge-elasticsearch-index/50457/1 "2016-05-19T15:22:09Z")
Can I use Lucene merge tool to merge Elasticsearch index like this?
[https://cwiki.apache.org/confluence/display/solr/Merging+Indexes](https://cwiki.apache.org/confluence/display/solr/Merging+Indexes)
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### Author:  [@danielmitterdorfer](https://discuss.elastic.co/u/danielmitterdorfer)
#### Post date: [May 24, 2016, 6:10am UTC](https://discuss.elastic.co/t/can-i-use-lucene-merge-tool-to-merge-elasticsearch-index/50457/2 "2016-05-24T06:10:22Z")
Hi @sharon.c,
the short answer is: No.
You have to reindex your data using a client-side solution. I find the [reindex helper](http://elasticsearch-py.readthedocs.io/en/master/helpers.html#reindex) of the Elasticsearch Python client quite handy for that.
In the Github issue [17447](https://github.com/elastic/elasticsearch/issues/17447), we also work on reindex support across clusters in Elasticsearch directly.
Daniel
Daniel
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 5, 2017, 10:49pm UTC](https://discuss.elastic.co/t/can-i-use-lucene-merge-tool-to-merge-elasticsearch-index/50457/3 "2017-07-05T22:49:40Z")