# "name" field

**URL:** <https://discuss.elastic.co/t/name-field/278713>\
**Category:** Elasticsearch\
**Created:** [July 14, 2021, 8:30pm UTC](https://discuss.elastic.co/t/name-field/278713 "2021-07-14T20:30:41Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![rojin](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/rojin/32/97697_2.png) [@rojin](https://discuss.elastic.co/u/rojin)\
**Post date:** [July 14, 2021, 8:30pm UTC](https://discuss.elastic.co/t/name-field/278713/1 "2021-07-14T20:30:41Z")

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Hey, just wondering if I can use the "name" field in grok patterns. when I use it, the error appears to be like this:

```auto
["Error"], "id"=>"692aaaf9cd6aedfa9e73788106ef94fc1d968d10a1586c197812a6e14d84010a"}]=>[{"thread_id"=>25, "name"=>"[main]>worker0", "current_call"=>"[...]/logstash-core/lib/logstash/java_pipeline.rb:243:in `block in start_workers'"}, {"thread_id"=>26, "name"=>"[main]>worker1", "current_call"=>"[...]/logstash-core/lib/logstash/java_pipeline.rb:243:in `block in start_workers'"}, {"thread_id"=>27, "name"=>"[main]>worker2", "current_call"=>"[...]/logstash-core/lib/logstash/java_pipeline.rb:243:in `block in start_workers'"}, {"thread_id"=>28, "name"=>"[main]>worker3", "current_call"=>"[...]/logstash-core/lib/logstash/java_pipeline.rb:243:in `block in start_workers'"}]}}

```

Is the field "name" reserved? Thanks in advance!

---

<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 11, 2021, 8:30pm UTC](https://discuss.elastic.co/t/name-field/278713/2 "2021-08-11T20:30:51Z")

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