# Logstash \_grokparsefailure error

**URL:** <https://discuss.elastic.co/t/logstash--grokparsefailure-error/89989>\
**Category:** Logstash\
**Created:** [June 19, 2017, 8:31pm UTC](https://discuss.elastic.co/t/logstash--grokparsefailure-error/89989 "2017-06-19T20:31:02Z")\
**Posts on this page:** 2\
**Page:** 2

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**Author:** ![magnusbaeck](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/magnusbaeck/32/44943_2.png) [@magnusbaeck](https://discuss.elastic.co/u/magnusbaeck)\
**Post date:** [June 21, 2017, 5:31am UTC](https://discuss.elastic.co/t/logstash--grokparsefailure-error/89989/21 "2017-06-21T05:31:48Z")

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> My commandline shows following output:  
> // no data tag.

Your grok filter tries to parse a `@message` field but your event clearly doesn't have such a field.

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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:** [July 19, 2017, 5:31am UTC](https://discuss.elastic.co/t/logstash--grokparsefailure-error/89989/22 "2017-07-19T05:31:52Z")

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