# Dynamic index

**URL:** <https://discuss.elastic.co/t/dynamic-index/154146>\
**Category:** Logstash\
**Created:** [October 26, 2018, 8:34am UTC](https://discuss.elastic.co/t/dynamic-index/154146 "2018-10-26T08:34:49Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![wuwo1952368901](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/wuwo1952368901/32/25297_2.png) [@wuwo1952368901](https://discuss.elastic.co/u/wuwo1952368901)\
**Post date:** [October 26, 2018, 8:34am UTC](https://discuss.elastic.co/t/dynamic-index/154146/1 "2018-10-26T08:34:50Z")

</div>

I want to dynamic index from meassage nodename,but it's only show "%{[node\_name]}" ,it's not my node\_name. How can i config this?

filter {  
grok {  
match =\> {  
"message"=\>"#%{DATA:request\_time}#%{DATA:node\_name}#%{DATA:class\_name}#%{DATA:log\_level}#%{DATA:call\_site}#%{DATA:line\_number}#%{DATA:request\_url}#%{DATA:request\_method}#%{DATA:container\_name}#%{DATA:action\_name}#%{DATA:log\_info}#%{DATA:exception}#%{DATA:ip}#%{DATA:form}#%{DATA:identity}" }  
}  
}

output{  
elasticsearch{  
hosts=\>["127.0.0.1:9200"]  
index=\>"%{[node\_name]}"

```
    }

```

}

---

<div class="post-metadata">

**Author:** ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)\
**Post date:** [October 26, 2018, 8:45am UTC](https://discuss.elastic.co/t/dynamic-index/154146/2 "2018-10-26T08:45:11Z")

</div>

Is the grok expression working so that the field is actually extracted? If you look at the data in Elasticsearch, do you see a `_grokparsefailure` tag? If not, can you show us what anindexed document looks like?

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<div class="post-metadata">

**Author:** ![wuwo1952368901](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/wuwo1952368901/32/25297_2.png) [@wuwo1952368901](https://discuss.elastic.co/u/wuwo1952368901)\
**Post date:** [October 26, 2018, 11:05am UTC](https://discuss.elastic.co/t/dynamic-index/154146/3 "2018-10-26T11:05:35Z")

</div>

When i use this ,it was ok  
output{  
elasticsearch{  
hosts=\>["127.0.0.1:9200"]  
index=\>"defult"  
}  
}

but use this,i can't see node\_nam in Elasticsearch  
output{  
elasticsearch{  
hosts=\>["127.0.0.1:9200"]  
index=\>"%{[node\_name]}"  
}  
}

---

<div class="post-metadata">

**Author:** ![Jenni](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jenni/32/29684_2.png) [@Jenni](https://discuss.elastic.co/u/Jenni)\
**Post date:** [October 26, 2018, 11:12am UTC](https://discuss.elastic.co/t/dynamic-index/154146/4 "2018-10-26T11:12:42Z")

</div>

Well, you still haven't posted your indexed events ...

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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:** [November 23, 2018, 11:12am UTC](https://discuss.elastic.co/t/dynamic-index/154146/5 "2018-11-23T11:12:45Z")

</div>

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