# Is there any length limitation of the key in term aggregation ? I mean results display
**URL:** https://discuss.elastic.co/t/is-there-any-length-limitation-of-the-key-in-term-aggregation-i-mean-results-display/58024
**Category:** Elasticsearch
**Created:** [August 15, 2016, 11:55am UTC](https://discuss.elastic.co/t/is-there-any-length-limitation-of-the-key-in-term-aggregation-i-mean-results-display/58024 "2016-08-15T11:55:05Z")
**Posts on this page:** 2
**Page:** 2
### Author:  [@pill663](https://discuss.elastic.co/u/pill663)
#### Post date: [August 18, 2016, 6:09am UTC](https://discuss.elastic.co/t/is-there-any-length-limitation-of-the-key-in-term-aggregation-i-mean-results-display/58024/21 "2016-08-18T06:09:26Z")
Thank you very much.
I've found a way to solve it in logstash.
The elasticsearch-template.json in logstash is to describe the default template of mappings.
It's in the path:
${logstash\_home}/vendor/bundle/jruby/1.9/gems/logstash-output-elasticsearch-2.5.1-java/lib/logstash/outputs/elasticsearch/elasticsearch-template.json
So I change the ignore\_above attribute, then the long string in new index will be indexable.
Also , I need to add 'template\_overwrite =\> true' to logstash.conf to make it into effect.
output {
elasticsearch {
hosts =\> ["[https://esurl:443](https://esurl:443)"]
ssl =\> true
flush\_size =\> 250000
template\_overwrite =\> true
}
}
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 5, 2017, 10:27pm UTC](https://discuss.elastic.co/t/is-there-any-length-limitation-of-the-key-in-term-aggregation-i-mean-results-display/58024/22 "2017-07-05T22:27:05Z")
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