# Tagging errors parsing json messages

**URL:** <https://discuss.elastic.co/t/tagging-errors-parsing-json-messages/274326>\
**Category:** Logstash\
**Created:** [May 28, 2021, 10:51am UTC](https://discuss.elastic.co/t/tagging-errors-parsing-json-messages/274326 "2021-05-28T10:51:19Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![alfredo.deluca](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/alfredo.deluca/32/95381_2.png) [@alfredo.deluca](https://discuss.elastic.co/u/alfredo.deluca)\
**Post date:** [May 28, 2021, 10:51am UTC](https://discuss.elastic.co/t/tagging-errors-parsing-json-messages/274326/1 "2021-05-28T10:51:19Z")

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Hi all  
we have elastic cloud 7.12 with logstash 7.12 parsing json messages and send them to elasticsearch, but as we are having issues with mismatch type I d like to tag the error when that happen.

Do you have any idea?  
Is `tag_on_failure` a good way to go?  
Cheers

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<div class="post-metadata">

**Author:** ![grumo35](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/grumo35/32/59451_2.png) [@grumo35](https://discuss.elastic.co/u/grumo35)\
**Post date:** [May 28, 2021, 11:10am UTC](https://discuss.elastic.co/t/tagging-errors-parsing-json-messages/274326/2 "2021-05-28T11:10:43Z")

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Hi, by default the json filter will add a tag "\_jsonparsefailure"

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<div class="post-metadata">

**Author:** ![alfredo.deluca](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/alfredo.deluca/32/95381_2.png) [@alfredo.deluca](https://discuss.elastic.co/u/alfredo.deluca)\
**Post date:** [May 28, 2021, 2:10pm UTC](https://discuss.elastic.co/t/tagging-errors-parsing-json-messages/274326/3 "2021-05-28T14:10:46Z")

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Thanks heaps.  
So it's by default?

Didn't know that  
Cheers

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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:** [June 25, 2021, 2:11pm UTC](https://discuss.elastic.co/t/tagging-errors-parsing-json-messages/274326/4 "2021-06-25T14:11:23Z")

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