# Elasticsearch 6.5 Ingest node \_pipeline convert processors field cannot support array list

**URL:** <https://discuss.elastic.co/t/elasticsearch-6-5-ingest-node-pipeline-convert-processors-field-cannot-support-array-list/157797>\
**Category:** Elasticsearch\
**Created:** [November 22, 2018, 4:31am UTC](https://discuss.elastic.co/t/elasticsearch-6-5-ingest-node-pipeline-convert-processors-field-cannot-support-array-list/157797 "2018-11-22T04:31:14Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![HOPE](https://avatars.discourse-cdn.com/v4/letter/h/aeb1de/32.png) [@HOPE](https://discuss.elastic.co/u/HOPE)\
**Post date:** [November 22, 2018, 4:31am UTC](https://discuss.elastic.co/t/elasticsearch-6-5-ingest-node-pipeline-convert-processors-field-cannot-support-array-list/157797/1 "2018-11-22T04:31:14Z")

</div>

pipeline.json

```
    {
        "convert" : {
            "field" : ["flowid", "qq_wechat_id", "curr_time"],
            "type": "long"
        }
    },

```

when i create \_ingest/pipeline/accountlog-pipeline, it show "field property isn't string", but 'Document' [Convert processor | Elasticsearch Guide [8.11] | Elastic](https://www.elastic.co/guide/en/elasticsearch/reference/current/convert-processor.html)

> Converts a field in the currently ingested document to a different type, such as converting a string to an integer. If the field value is an array, all members will be converted.

> curl --connect-timeout 2 -XPUT "[http://10.195.17.47:9200/\_ingest/pipeline/accountlog-pipeline](http://10.195.17.47:9200/_ingest/pipeline/accountlog-pipeline)" -d@pipeline.json -H "Content-Type:application/json"  
> {  
> "error": {  
> "header": {  
> "processor\_type": "convert",  
> "property\_name": "field"  
> },  
> "reason": "[field] property isn't a string, but of type [java.util.ArrayList]",  
> "root\_cause": [  
> {  
> "header": {  
> "processor\_type": "convert",  
> "property\_name": "field"  
> },  
> "reason": "[field] property isn't a string, but of type [java.util.ArrayList]",  
> "type": "parse\_exception"  
> }  
> ],  
> "type": "parse\_exception"  
> },  
> "status": 400  
> }

---

<div class="post-metadata">

**Author:** ![HOPE](https://avatars.discourse-cdn.com/v4/letter/h/aeb1de/32.png) [@HOPE](https://discuss.elastic.co/u/HOPE)\
**Post date:** [November 23, 2018, 8:28am UTC](https://discuss.elastic.co/t/elasticsearch-6-5-ingest-node-pipeline-convert-processors-field-cannot-support-array-list/157797/2 "2018-11-23T08:28:55Z")

</div>

maybe i am wrong.  
[field] property needs a string. the string can be include an Arraylist  
i 'll try it in another way .

---

<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:** [December 21, 2018, 8:29am UTC](https://discuss.elastic.co/t/elasticsearch-6-5-ingest-node-pipeline-convert-processors-field-cannot-support-array-list/157797/3 "2018-12-21T08:29:15Z")

</div>

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