# Aggregation: Field data loading is forbidden on\[ \]

**URL:** <https://discuss.elastic.co/t/aggregation-field-data-loading-is-forbidden-on/47913>\
**Category:** Elasticsearch\
**Created:** [April 20, 2016, 1:28pm UTC](https://discuss.elastic.co/t/aggregation-field-data-loading-is-forbidden-on/47913 "2016-04-20T13:28:50Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![maher](https://avatars.discourse-cdn.com/v4/letter/m/a6a055/32.png) [@maher](https://discuss.elastic.co/u/maher)\
**Post date:** [April 20, 2016, 1:28pm UTC](https://discuss.elastic.co/t/aggregation-field-data-loading-is-forbidden-on/47913/1 "2016-04-20T13:28:50Z")

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Hi, I am using logstash to parse some access.log and send it to elasticsearch.

I am trying to use an aggregation to get distinct values of a ProductCode Field which is a string.  
when i run this command request :

POST localhost:9200/logstash-2016.04.18/\_search  
{  
"aggs": {  
"t": {  
"terms": {  
"field": "productcode"  
}  
}  
}  
}

I get this result:

{  
"error": {  
"root\_cause": [  
{  
"type": "illegal\_state\_exception",  
"reason": "Field data loading is forbidden on [productcode]"  
}  
],  
"type": "search\_phase\_execution\_exception",  
"reason": "all shards failed",  
"phase": "query",  
"grouped": true,  
"failed\_shards": [  
{  
"shard": 0,  
"index": "logstash-2016.04.18",  
"node": "hM-NdbGUQdGCrcgUDkhXgA",  
"reason": {  
"type": "illegal\_state\_exception",  
"reason": "Field data loading is forbidden on [productcode]"  
}  
}  
]  
},  
"status": 500  
}

---

<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:** [July 5, 2017, 10:57pm UTC](https://discuss.elastic.co/t/aggregation-field-data-loading-is-forbidden-on/47913/2 "2017-07-05T22:57:41Z")

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