# Rollover api : How to Run it 30 min wise
**URL:** https://discuss.elastic.co/t/rollover-api-how-to-run-it-30-min-wise/143318
**Category:** Elasticsearch
**Created:** [August 7, 2018, 12:09pm UTC](https://discuss.elastic.co/t/rollover-api-how-to-run-it-30-min-wise/143318 "2018-08-07T12:09:28Z")
**Posts on this page:** 8
**Page:** 1
### Author:  [@BoffinPanda](https://discuss.elastic.co/u/BoffinPanda)
#### Post date: [August 7, 2018, 12:09pm UTC](https://discuss.elastic.co/t/rollover-api-how-to-run-it-30-min-wise/143318/1 "2018-08-07T12:09:28Z")
Suppose I do :
POST /indexname/\_rollover
{
"conditions": {
"max\_age": "30m",
"max\_docs": 1000,
"max\_size": "5gb"
}
}
Will it work?
If not what is the correct way of generating indices every 30 mins.
---
### Author:  [@BoffinPanda](https://discuss.elastic.co/u/BoffinPanda)
#### Post date: [August 10, 2018, 12:45pm UTC](https://discuss.elastic.co/t/rollover-api-how-to-run-it-30-min-wise/143318/2 "2018-08-10T12:45:27Z")
> [@BoffinPanda](#):
>
> POST /indexname/\_rollover
> {
> "conditions": {
> "max\_age": "30m",
> "max\_docs": 1000,
> "max\_size": "5gb"
> }
> }
{"error":{"root\_cause":[{"type":"illegal\_argument\_exception","reason":"source alias is a concrete index"}],"type":"illegal\_argument\_exception","reason":"source alias is a concrete index"},"status":400}
I am getting the above error. Where am I going wrong?
---
### Author:  [@BoffinPanda](https://discuss.elastic.co/u/BoffinPanda)
#### Post date: [August 10, 2018, 2:21pm UTC](https://discuss.elastic.co/t/rollover-api-how-to-run-it-30-min-wise/143318/3 "2018-08-10T14:21:38Z")
Hello.
For the roll over api, I have done the following but I got an error
POST /\_aliases
{
"actions" : [
{ "add" : { "index" : "netflow-2018.08.10", "alias" : "netflow-2018.08.10\_630" } }
]
}
POST /netflow-2018.08.10\_630/\_rollover
{
"conditions": {
"max\_age": "30m",
"max\_docs": 1000,
"max\_size": "5gb"
}
}
I did this.
But the error I got was:
{
"error": {
"root\_cause": [
{
"type": "illegal\_argument\_exception",
"reason": "index name [netflow-2018.08.10] does not match pattern '^._-\d+$'"
}
],
"type": "illegal\_argument\_exception",
"reason": "index name [netflow-2018.08.10] does not match pattern '^._-\d+$'"
},
"status": 400
---
### Author:  [@thiago](https://discuss.elastic.co/u/thiago)
#### Post date: [August 10, 2018, 3:06pm UTC](https://discuss.elastic.co/t/rollover-api-how-to-run-it-30-min-wise/143318/4 "2018-08-10T15:06:46Z")
First, the error you are getting is because the _index name_ must end with a numeric pattern. For instance, an index name named after `index-0001`. In your case, the index name is `netflow-2018.08.10`, which does not follows that pattern.
Secondly, when you are using the rollover API you probably don't want to use an index name that carries a timestamp, so instead of `netflow-2018.08.10`you would have `netflow-000001` as na index name. There is a possibility of using timestamp combined with rollover API as well, read more about it here: [https://www.elastic.co/guide/en/elasticsearch/reference/master/indices-rollover-index.html#\_using\_date\_math\_with\_the\_rollover\_api](https://www.elastic.co/guide/en/elasticsearch/reference/master/indices-rollover-index.html#_using_date_math_with_the_rollover_api)
There is also a very good article about rollover here: [https://www.elastic.co/blog/managing-time-based-indices-efficiently](https://www.elastic.co/blog/managing-time-based-indices-efficiently)
---
### Author:  [@BoffinPanda](https://discuss.elastic.co/u/BoffinPanda)
#### Post date: [August 10, 2018, 3:15pm UTC](https://discuss.elastic.co/t/rollover-api-how-to-run-it-30-min-wise/143318/5 "2018-08-10T15:15:32Z")
Thanks Thiago! I will give the date wise indices roll over a try. My whole design is date dependent.
---
### Author:  [@BoffinPanda](https://discuss.elastic.co/u/BoffinPanda)
#### Post date: [August 11, 2018, 2:16am UTC](https://discuss.elastic.co/t/rollover-api-how-to-run-it-30-min-wise/143318/6 "2018-08-11T02:16:57Z")
Hello can anyone make me understand this regular expression for roll over api:
# PUT /\ with URI encoding:
PUT /%3Clogs-%7Bnow%2Fd%7D-1%3E
Now if I want to have netflow indices of format netflow-2018.08.10 rolled over, what do I do?
From theory, I was told that roll over api works with the format of having it ended with an integer -1 like netflow-2018.08.10-1 and then make an alias. The alias will be rolled over.
However this thing is not working and I am really struck on what to do next.
---
### Author:  [@thiago](https://discuss.elastic.co/u/thiago)
#### Post date: [August 11, 2018, 3:09am UTC](https://discuss.elastic.co/t/rollover-api-how-to-run-it-30-min-wise/143318/7 "2018-08-11T03:09:01Z")
Try exactly as described here [https://www.elastic.co/guide/en/elasticsearch/reference/current/indices-rollover-index.html#\_using\_date\_math\_with\_the\_rollover\_api](https://www.elastic.co/guide/en/elasticsearch/reference/current/indices-rollover-index.html#_using_date_math_with_the_rollover_api) until you can make it work, then adapt to your case.
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [September 8, 2018, 3:09am UTC](https://discuss.elastic.co/t/rollover-api-how-to-run-it-30-min-wise/143318/8 "2018-09-08T03:09:07Z")
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