# Index Template Not Apllying Correctly
**URL:** https://discuss.elastic.co/t/index-template-not-apllying-correctly/155750
**Category:** Elasticsearch
**Created:** [November 7, 2018, 3:41pm UTC](https://discuss.elastic.co/t/index-template-not-apllying-correctly/155750 "2018-11-07T15:41:59Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@MultiplierMultiplier](https://discuss.elastic.co/u/MultiplierMultiplier)
#### Post date: [November 7, 2018, 3:41pm UTC](https://discuss.elastic.co/t/index-template-not-apllying-correctly/155750/1 "2018-11-07T15:41:59Z")
Hi All,
I have a cluster of ES nodes with 3 nodes in total, I would like two replica shards for each primary, I have implemented the below template which does not appear to work, any advice?
```
{
"graylog-internal" : {
"order" : 0,
"template" : "graylog_*",
"settings" : {
"index" : {
"number_of_shards" : "2",
"number_of_replicas" : "2"
}
},
"mappings" : {
"message" : {
"properties" : {
"message" : {
"type" : "text",
"analyzer" : "standard",
"fielddata" : false
},
"full_message" : {
"type" : "text",
"analyzer" : "standard",
"fielddata" : false
},
"timestamp" : {
"type" : "date",
"format" : "yyyy-MM-dd HH:mm:ss.SSS"
},
"streams" : {
"type" : "keyword"
}
},
"dynamic_templates" : [
{
"internal_fields" : {
"match" : "gl2_*",
"mapping" : {
"type" : "keyword"
}
}
}
]
}
},
"aliases" : { }
}
}
```
The above is returned from curl -XGET 'localhost:9200/\_template?pretty'
Regards,
George
---
### Author:  [@Ritesh\_Uniyal](https://discuss.elastic.co/u/Ritesh_Uniyal)
#### Post date: [November 7, 2018, 4:17pm UTC](https://discuss.elastic.co/t/index-template-not-apllying-correctly/155750/2 "2018-11-07T16:17:07Z")
your template should be like following. If the index already exists then you will need to rollover the index for template changes to take effect
{
"graylog-internal": {
"index\_patterns": [
“Your pattern”
],
"settings": {
"index": {
"number\_of\_shards": “2”,
"number\_of\_replicas": "2",
"refresh\_interval": "5s"
}
},
"mappings": {},
"aliases": {}
}
}
---
### Author:  [@victorhearnyeates](https://discuss.elastic.co/u/victorhearnyeates)
#### Post date: [November 7, 2018, 4:34pm UTC](https://discuss.elastic.co/t/index-template-not-apllying-correctly/155750/3 "2018-11-07T16:34:17Z")
If you want it to take effect on existing data, you'll need to reindex those indices, which can be done by `reindex` or `update_by_query`. Also be aware that shards and replicas aren't the same thing, shards partition data within an index, while replicas give you a separate copy, which can help with throughput.
i.e.
```auto
POST _reindex
{
"source": {
"index": "graylog-internal"
},
"dest": {
"index": "new_graylog-internal"
}
}
```
or in-situ,
```auto
POST graylog-internal/_update_by_query
```
As always, make sure you backup/snapshot before doing anything.
Hope this helps 🙂
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [December 5, 2018, 4:34pm UTC](https://discuss.elastic.co/t/index-template-not-apllying-correctly/155750/4 "2018-12-05T16:34:23Z")
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