# Add a new node **URL:** \ **Category:** Elasticsearch\ **Created:** [July 27, 2013, 3:09am UTC](https://discuss.elastic.co/t/add-a-new-node/12964 "2013-07-27T03:09:39Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![David\_Charle](https://avatars.discourse-cdn.com/v4/letter/d/f08c70/32.png) [@David\_Charle](https://discuss.elastic.co/u/David_Charle)\ **Post date:** [July 27, 2013, 3:09am UTC](https://discuss.elastic.co/t/add-a-new-node/12964/1 "2013-07-27T03:09:39Z")
Hi I wanted to add additional new node in different data center to existing node (single) by changing shards to 4/5. Does this need an index rebuild ? Any other setting/hints for cross data center (other than discovery, as we use unicast + IP). ## Thanks David -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). ---
**Author:** ![radu\_gheorghe](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/radu_gheorghe/32/556_2.png) [@radu\_gheorghe](https://discuss.elastic.co/u/radu_gheorghe)\ **Post date:** [July 30, 2013, 4:01pm UTC](https://discuss.elastic.co/t/add-a-new-node/12964/2 "2013-07-30T16:01:30Z")
Hello David, On Sat, Jul 27, 2013 at 6:09 AM, David Charle [dbchar2012@gmail.com](mailto:dbchar2012@gmail.com) wrote: > Hi > > I wanted to add additional new node in different data center to existing > node (single) by changing shards to 4/5. Does this need an index rebuild ? Yes, you need to rebuild your index if you have to change the number of shards. You can change the number of replicas on the fly, though. > Any other setting/hints for cross data center (other than discovery, as we > use unicast + IP). I assume you don't want your shards to move around from one datacenter to the other. If that's so, have a look at shard allocation settings: > **[Elastic — The Search AI Company](https://www.elastic.co)** > > Power insights and outcomes with The Elastic Search AI Platform. See into your data and find answers that matter with enterprise solutions designed to help you accelerate time to insight. Try Elastic ... ## Best regards, Radu [http://sematext.com/](http://sematext.com/) -- Elasticsearch -- Solr -- Lucene -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 6, 2017, 2:23am UTC](https://discuss.elastic.co/t/add-a-new-node/12964/3 "2017-07-06T02:23:43Z")
Closed on July 6, 2017, 2:23am UTC