# Documents distributions across shards
**URL:** https://discuss.elastic.co/t/documents-distributions-across-shards/200137
**Category:** Elasticsearch
**Created:** [September 19, 2019, 7:26am UTC](https://discuss.elastic.co/t/documents-distributions-across-shards/200137 "2019-09-19T07:26:44Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@pathri](https://discuss.elastic.co/u/pathri)
#### Post date: [September 19, 2019, 7:26am UTC](https://discuss.elastic.co/t/documents-distributions-across-shards/200137/1 "2019-09-19T07:26:44Z")
say there are 99 documents and we have 3 shards for an index.
is it sure that all the 3 shards are going to have 33 documents each?
thanks in advance?
---
### Author:  [@spinscale](https://discuss.elastic.co/u/spinscale)
#### Post date: [September 19, 2019, 1:36pm UTC](https://discuss.elastic.co/t/documents-distributions-across-shards/200137/2 "2019-09-19T13:36:24Z")
Hey,
no, there is no perfect balancing, so you will have a slight deviation from that perfect case. The idea is, that this will be roughly the case due to the use of using a Murmur3 hash on the id.
--Alex
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [October 17, 2019, 1:36pm UTC](https://discuss.elastic.co/t/documents-distributions-across-shards/200137/3 "2019-10-17T13:36:30Z")
This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.