# Index update

**URL:** https://discuss.elastic.co/t/index-update/213559
**Category:** Elasticsearch
**Created:** [January 2, 2020, 10:50am UTC](https://discuss.elastic.co/t/index-update/213559 "2020-01-02T10:50:55Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![volcano](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/volcano/32/46287_2.png) [@volcano](https://discuss.elastic.co/u/volcano)
#### Post date: [January 2, 2020, 10:50am UTC](https://discuss.elastic.co/t/index-update/213559/1 "2020-01-02T10:50:55Z")

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I have this output plugin in Logstash to create elastic search index.

```auto
output {
    amazon_es {
       hosts => ["https://xxxxxxxxxxxxxxxx.es.amazonaws.com/"]
       region => "ap-southeast-1"
       index => "studentservice-logs-%{+YYYY.MM.dd}"
   }
}

```

I want to update this index later because there will be some new fields added by _mutate_ for some log messages.

How to update the index ?

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<div class="post-metadata">

### Author: ![Emanuil](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/emanuil/32/36783_2.png) [@Emanuil](https://discuss.elastic.co/u/Emanuil)
#### Post date: [January 4, 2020, 1:44am UTC](https://discuss.elastic.co/t/index-update/213559/2 "2020-01-04T01:44:19Z")

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> [@volcano](#):
>
> How to update the index ?

Update how? With a separate batch processing job? Or do you want to make a part of the Elastic Stack do something for you?

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<div class="post-metadata">

### Author: ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)
#### Post date: [February 1, 2020, 1:44am UTC](https://discuss.elastic.co/t/index-update/213559/3 "2020-02-01T01:44:22Z")

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