# Dynamic index name when using multiple filebeat instances

**URL:** <https://discuss.elastic.co/t/dynamic-index-name-when-using-multiple-filebeat-instances/139928>\
**Category:** Logstash\
**Created:** [July 13, 2018, 11:13am UTC](https://discuss.elastic.co/t/dynamic-index-name-when-using-multiple-filebeat-instances/139928 "2018-07-13T11:13:09Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Sakshi\_Aggarwal](https://avatars.discourse-cdn.com/v4/letter/s/9e8a1a/32.png) [@Sakshi\_Aggarwal](https://discuss.elastic.co/u/Sakshi_Aggarwal)\
**Post date:** [July 13, 2018, 11:13am UTC](https://discuss.elastic.co/t/dynamic-index-name-when-using-multiple-filebeat-instances/139928/1 "2018-07-13T11:13:09Z")

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i have a working model of elk but i want a dynamic index name, all i want is to assign a based on my beat.name field.

output {  
elasticsearch {  
hosts =\> ["localhost:9200"]  
index =\> "%{[beat.name][\_id]}"  
}  
}

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<div class="post-metadata">

**Author:** ![magnusbaeck](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/magnusbaeck/32/44943_2.png) [@magnusbaeck](https://discuss.elastic.co/u/magnusbaeck)\
**Post date:** [July 13, 2018, 12:01pm UTC](https://discuss.elastic.co/t/dynamic-index-name-when-using-multiple-filebeat-instances/139928/2 "2018-07-13T12:01:48Z")

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The correct way to reference beat.name is `%{[beat][name]}`

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<div class="post-metadata">

**Author:** ![Sakshi\_Aggarwal](https://avatars.discourse-cdn.com/v4/letter/s/9e8a1a/32.png) [@Sakshi\_Aggarwal](https://discuss.elastic.co/u/Sakshi_Aggarwal)\
**Post date:** [July 16, 2018, 6:18am UTC](https://discuss.elastic.co/t/dynamic-index-name-when-using-multiple-filebeat-instances/139928/3 "2018-07-16T06:18:58Z")

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omgggg !! amazing it worked..

u r such a life saver.

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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:** [August 13, 2018, 6:19am UTC](https://discuss.elastic.co/t/dynamic-index-name-when-using-multiple-filebeat-instances/139928/4 "2018-08-13T06:19:07Z")

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