# Set shards and replicas when creating index?
**URL:** https://discuss.elastic.co/t/set-shards-and-replicas-when-creating-index/6772
**Category:** Elasticsearch
**Created:** [February 21, 2012, 4:48pm UTC](https://discuss.elastic.co/t/set-shards-and-replicas-when-creating-index/6772 "2012-02-21T16:48:47Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@Frank\_LaRosa](https://discuss.elastic.co/u/Frank_LaRosa)
#### Post date: [February 21, 2012, 4:48pm UTC](https://discuss.elastic.co/t/set-shards-and-replicas-when-creating-index/6772/1 "2012-02-21T16:48:47Z")
Hi,
I have some Java code that creates an index using CreateIndexRequest.
I would like to specify the number of shards and replicas per shard
when I create the index, however I cannot see any way to set these
properties on CreateIndexRequest.
I do see a generic "settings" property, but there is no documentation
in the Javadocs to tell me what the valid settings are, so I have no
way of knowing what to put here.
Can someone help me out?
Thanks,
Frank
---
### Author:  [@Frank\_LaRosa](https://discuss.elastic.co/u/Frank_LaRosa)
#### Post date: [February 21, 2012, 4:54pm UTC](https://discuss.elastic.co/t/set-shards-and-replicas-when-creating-index/6772/2 "2012-02-21T16:54:02Z")
Is this the right way?
CreateIndexRequest createRequest = new CreateIndexRequest(INDEX\_NAME);
Settings indexSettings =
ImmutableSettings.settingsBuilder().put("number\_of\_shards",
NUMBER\_OF\_SHARDS).put("number\_of\_replicas",
NUMBER\_OF\_REPLICAS).build();
createRequest.settings(indexSettings);
On Feb 21, 10:48 am, Frank LaRosa [fr...@studyblue.com](mailto:fr...@studyblue.com) wrote:
> Hi,
>
> I have some Java code that creates an index using CreateIndexRequest.
>
> I would like to specify the number of shards and replicas per shard
> when I create the index, however I cannot see any way to set these
> properties on CreateIndexRequest.
>
> I do see a generic "settings" property, but there is no documentation
> in the Javadocs to tell me what the valid settings are, so I have no
> way of knowing what to put here.
>
> Can someone help me out?
>
> Thanks,
> Frank
---
### Author:  [@Clinton\_Gormley](https://discuss.elastic.co/u/Clinton_Gormley)
#### Post date: [February 21, 2012, 4:55pm UTC](https://discuss.elastic.co/t/set-shards-and-replicas-when-creating-index/6772/3 "2012-02-21T16:55:25Z")
On Tue, 2012-02-21 at 08:48 -0800, Frank LaRosa wrote:
> Hi,
>
> I have some Java code that creates an index using CreateIndexRequest.
>
> I would like to specify the number of shards and replicas per shard
> when I create the index, however I cannot see any way to set these
> properties on CreateIndexRequest.
>
> I do see a generic "settings" property, but there is no documentation
> in the Javadocs to tell me what the valid settings are, so I have no
> way of knowing what to put here.
Have a look at
[Elasticsearch Platform — Find real-time answers at scale | Elastic](http://www.elasticsearch.org/guide/reference/index-modules/) plus the
other pages linked to in the right column menu
clint
---
### Author:  [@kimchy](https://discuss.elastic.co/u/kimchy)
#### Post date: [February 22, 2012, 12:04am UTC](https://discuss.elastic.co/t/set-shards-and-replicas-when-creating-index/6772/4 "2012-02-22T00:04:57Z")
Yes, this will work.
On Tuesday, February 21, 2012 at 6:54 PM, Frank LaRosa wrote:
> Is this the right way?
>
> CreateIndexRequest createRequest = new CreateIndexRequest(INDEX\_NAME);
> Settings indexSettings =
> ImmutableSettings.settingsBuilder().put("number\_of\_shards",
> NUMBER\_OF\_SHARDS).put("number\_of\_replicas",
> NUMBER\_OF\_REPLICAS).build();
> createRequest.settings(indexSettings);
>
> On Feb 21, 10:48 am, Frank LaRosa \<[fr...@studyblue.com](mailto:fr...@studyblue.com) ([http://studyblue.com](http://studyblue.com))\> wrote:
>
> > Hi,
> >
> > I have some Java code that creates an index using CreateIndexRequest.
> >
> > I would like to specify the number of shards and replicas per shard
> > when I create the index, however I cannot see any way to set these
> > properties on CreateIndexRequest.
> >
> > I do see a generic "settings" property, but there is no documentation
> > in the Javadocs to tell me what the valid settings are, so I have no
> > way of knowing what to put here.
> >
> > Can someone help me out?
> >
> > Thanks,
> > Frank
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 6, 2017, 3:38am UTC](https://discuss.elastic.co/t/set-shards-and-replicas-when-creating-index/6772/5 "2017-07-06T03:38:38Z")