# Creating replicas dynamically

**URL:** <https://discuss.elastic.co/t/creating-replicas-dynamically/5774>\
**Category:** Elasticsearch\
**Created:** [November 4, 2011, 2:14pm UTC](https://discuss.elastic.co/t/creating-replicas-dynamically/5774 "2011-11-04T14:14:32Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![BARNEY](https://avatars.discourse-cdn.com/v4/letter/b/48db29/32.png) [@BARNEY](https://discuss.elastic.co/u/BARNEY)\
**Post date:** [November 4, 2011, 2:14pm UTC](https://discuss.elastic.co/t/creating-replicas-dynamically/5774/1 "2011-11-04T14:14:32Z")

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Hi,  
Can any one please tell me how to create replicas dynamically?  
Because at present i configure my node with 2 shards and 0  
replica(then cluster health is green),if no memory in 1st node and  
want to index more documents ,then i need to create one more node  
having replica of the first node.

Thanks,  
Kalyan

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**Author:** ![Karussell1](https://avatars.discourse-cdn.com/v4/letter/k/50afbb/32.png) [@Karussell1](https://discuss.elastic.co/u/Karussell1)\
**Post date:** [November 5, 2011, 12:31pm UTC](https://discuss.elastic.co/t/creating-replicas-dynamically/5774/2 "2011-11-05T12:31:16Z")

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What do you want to achieve?

Replicas means 'duplications' of your shards, so it will use more  
memory/resources if you increase the replica count...  
if you want to distribute one index you'll need to increase the shard  
count (or split the index). Setting the shard count is only possible  
when creating an index, so you'll need to reindex.

Nevertheless Here is the API:

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Peter.

On 4 Nov., 15:14, kalyan [kalyanc...@gmail.com](mailto:kalyanc...@gmail.com) wrote:

> Hi,  
> Can any one please tell me how to create replicas dynamically?  
> Because at present i configure my node with 2 shards and 0  
> replica(then cluster health is green),if no memory in 1st node and  
> want to index more documents ,then i need to create one more node  
> having replica of the first node.
> 
> Thanks,  
> Kalyan

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**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, 3:49am UTC](https://discuss.elastic.co/t/creating-replicas-dynamically/5774/3 "2017-07-06T03:49:50Z")

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