# Upgraded from 6.4 to 7.4.2
**URL:** https://discuss.elastic.co/t/upgraded-from-6-4-to-7-4-2/211884
**Category:** Elasticsearch
**Created:** [December 14, 2019, 10:18pm UTC](https://discuss.elastic.co/t/upgraded-from-6-4-to-7-4-2/211884 "2019-12-14T22:18:40Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@praveenmak](https://discuss.elastic.co/u/praveenmak)
#### Post date: [December 14, 2019, 10:18pm UTC](https://discuss.elastic.co/t/upgraded-from-6-4-to-7-4-2/211884/1 "2019-12-14T22:18:41Z")
Hello Folks,
We have upgraded ES from 6.4 to 7.4.2. I have a problem rolling over the index.
I followed the instructions from this page
https://www.elastic.co/guide/en/elasticsearch/reference/master/removal-of-types.html
When I do a rollover as follows,
POST /myindex/\_rollover?dry\_run=false&wait\_for\_active\_shards=0
{
"conditions" : {
"max\_age": "1d",
"max\_size": "100gb"
}
}
I get this error,
{
"error": {
"root\_cause": [
{
"type": "remote\_transport\_exception",
"reason": "[hostname][IP:9300][indices:admin/rollover]"
}
],
"type": "illegal\_argument\_exception",
"reason": "The [default] mapping cannot be updated on index [myindex-2019.12.14-000208]: defaults mappings are not useful anymore now that indices can have at most one type."
},
"status": 400
}
Can someone help?
---
### Author:  [@VietCong](https://discuss.elastic.co/u/VietCong)
#### Post date: [December 16, 2019, 4:35am UTC](https://discuss.elastic.co/t/upgraded-from-6-4-to-7-4-2/211884/2 "2019-12-16T04:35:28Z")
It complains about your old mapping. If you read the breaking changes documentation, in Elasticsearch 7.x it will only allow document type \_doc. I assume your old mapping has document type as something else which will need to be removed from the mapping as 7.x mapping does not allow you to define custom document type anymore.
---
### Author:  [@praveenmak](https://discuss.elastic.co/u/praveenmak)
#### Post date: [December 16, 2019, 6:46pm UTC](https://discuss.elastic.co/t/upgraded-from-6-4-to-7-4-2/211884/3 "2019-12-16T18:46:21Z")
Like I said, I did follow the removal-of-types. So the template that I have now looks like following,
{
"myindex-template" : {
"order" : 0,
"index\_patterns" : [
"myindex-_"
],
"settings" : {
"index" : {
"number\_of\_shards" : "2",
"number\_of\_replicas" : "1",
"refresh\_interval" : "60s"
}
},
"mappings" : {
"\_doc" : {
"dynamic\_templates" : [
{
"message\_field" : {
"path\_match" : "message",
"mapping" : {
"norms" : false,
"type" : "text"
},
"match\_mapping\_type" : "string"
}
},
{
"string\_fields" : {
"mapping" : {
"norms" : false,
"fields" : {
"keyword" : {
"ignore\_above" : 256,
"type" : "keyword"
}
},
"type" : "text"
},
"match\_mapping\_type" : "string",
"match" : "_"
}
}
],
"properties" : {
"@timestamp" : {
"type" : "date"
},
"geoip" : {
"dynamic" : "true",
"properties" : {
"city\_name" : {
"norms" : false,
"type" : "text",
"fields" : {
"keyword" : {
"ignore\_above" : 256,
"type" : "keyword"
}
}
},
"CustomerIP" : {
"type" : "ip"
},
"ip" : {
"type" : "ip"
},
"latitude" : {
"type" : "half\_float"
},
"country\_code2" : {
"norms" : false,
"type" : "text",
"fields" : {
"keyword" : {
"ignore\_above" : 256,
"type" : "keyword"
}
}
},
"country\_name" : {
"norms" : false,
"type" : "text",
"fields" : {
"keyword" : {
"ignore\_above" : 256,
"type" : "keyword"
}
}
},
"continent\_code" : {
"norms" : false,
"type" : "text",
"fields" : {
"keyword" : {
"ignore\_above" : 256,
"type" : "keyword"
}
}
},
"location" : {
"type" : "geo\_point"
},
"region\_name" : {
"norms" : false,
"type" : "text",
"fields" : {
"keyword" : {
"ignore\_above" : 256,
"type" : "keyword"
}
}
},
"longitude" : {
"type" : "half\_float"
},
"region\_code" : {
"norms" : false,
"type" : "text",
"fields" : {
"keyword" : {
"ignore\_above" : 256,
"type" : "keyword"
}
}
}
}
},
"@version" : {
"type" : "keyword"
}
}
}
},
"aliases" : { }
}
}
When I try to rollover or add new index. I get the same error.
"defaults mappings are not useful anymore now that indices can have at most one type"
Please help, as you see the \_doc is used in the template.
---
### Author:  [@VietCong](https://discuss.elastic.co/u/VietCong)
#### Post date: [December 17, 2019, 3:18am UTC](https://discuss.elastic.co/t/upgraded-from-6-4-to-7-4-2/211884/4 "2019-12-17T03:18:38Z")
> [@praveenmak](#):
>
> The [default] mapping cannot be updated on index
Is there any other template that might be applying to this one index?
---
### Author:  [@praveenmak](https://discuss.elastic.co/u/praveenmak)
#### Post date: [December 18, 2019, 4:02pm UTC](https://discuss.elastic.co/t/upgraded-from-6-4-to-7-4-2/211884/5 "2019-12-18T16:02:33Z")
There is only one template and I deleted the template and created fresh as per 7.4 version.
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [January 15, 2020, 4:02pm UTC](https://discuss.elastic.co/t/upgraded-from-6-4-to-7-4-2/211884/6 "2020-01-15T16:02:44Z")
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