# S3 / FS and Cluster Health
**URL:** https://discuss.elastic.co/t/s3-fs-and-cluster-health/3218
**Category:** Elasticsearch
**Created:** [August 14, 2010, 3:13pm UTC](https://discuss.elastic.co/t/s3-fs-and-cluster-health/3218 "2010-08-14T15:13:09Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@Kenneth\_Loafman](https://discuss.elastic.co/u/Kenneth_Loafman)
#### Post date: [August 14, 2010, 3:13pm UTC](https://discuss.elastic.co/t/s3-fs-and-cluster-health/3218/1 "2010-08-14T15:13:09Z")
Hi,
I had a 'cluster' of one node using the FS gateway and it stayed green.
I switched to the S3 gateway and the cluster will not build the replica
shards, thus is staying yellow. Is this a known limitation of the S3
gateway, or is there something I'm missing.
Setup was copied from
[http://www.elasticsearch.com/docs/elasticsearch/cloud/aws/s3\_gateway/](http://www.elasticsearch.com/docs/elasticsearch/cloud/aws/s3_gateway/)
except for credentials and bucket name, of course.
...Thanks,
...Ken
---
### Author:  [@kimchy](https://discuss.elastic.co/u/kimchy)
#### Post date: [August 14, 2010, 5:16pm UTC](https://discuss.elastic.co/t/s3-fs-and-cluster-health/3218/2 "2010-08-14T17:16:32Z")
When you have a single node, replicas will not be allocated to it (it make
no sense to allocate a replica of a shard on the same node the shard exists
on). Its not really related to the gateway type. Are you sure you got green
health when a single node? Maybe you created an index without any replicas
in that case?
-shay.banon
On Sat, Aug 14, 2010 at 6:13 PM, Kenneth Loafman
[kenneth.loafman@gmail.com](mailto:kenneth.loafman@gmail.com)wrote:
> Hi,
>
> I had a 'cluster' of one node using the FS gateway and it stayed green.
> I switched to the S3 gateway and the cluster will not build the replica
> shards, thus is staying yellow. Is this a known limitation of the S3
> gateway, or is there something I'm missing.
>
> Setup was copied from
> [http://www.elasticsearch.com/docs/elasticsearch/cloud/aws/s3\_gateway/](http://www.elasticsearch.com/docs/elasticsearch/cloud/aws/s3_gateway/)
> except for credentials and bucket name, of course.
>
> ...Thanks,
> ...Ken
---
### Author:  [@Kenneth\_Loafman](https://discuss.elastic.co/u/Kenneth_Loafman)
#### Post date: [August 14, 2010, 7:37pm UTC](https://discuss.elastic.co/t/s3-fs-and-cluster-health/3218/3 "2010-08-14T19:37:59Z")
I understand. The replicas must have been created when there were two
nodes a week ago. That implies that green status means that there are
replicas, but they may be seriously out of date.
...Ken
Shay Banon wrote:
> When you have a single node, replicas will not be allocated to it (it
> make no sense to allocate a replica of a shard on the same node the
> shard exists on). Its not really related to the gateway type. Are you
> sure you got green health when a single node? Maybe you created an index
> without any replicas in that case?
>
> -shay.banon
>
> On Sat, Aug 14, 2010 at 6:13 PM, Kenneth Loafman
> \<[kenneth.loafman@gmail.com](mailto:kenneth.loafman@gmail.com) [mailto:kenneth.loafman@gmail.com](mailto:kenneth.loafman@gmail.com)\> wrote:
>
> ```
> Hi,
>
> I had a 'cluster' of one node using the FS gateway and it stayed green.
> I switched to the S3 gateway and the cluster will not build the replica
> shards, thus is staying yellow. Is this a known limitation of the S3
> gateway, or is there something I'm missing.
>
> Setup was copied from
> http://www.elasticsearch.com/docs/elasticsearch/cloud/aws/s3_gateway/
> except for credentials and bucket name, of course.
>
> ...Thanks,
> ...Ken
>
> ```
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 6, 2017, 4:20am UTC](https://discuss.elastic.co/t/s3-fs-and-cluster-health/3218/4 "2017-07-06T04:20:44Z")