# How to check logstash sends logs?

**URL:** <https://discuss.elastic.co/t/how-to-check-logstash-sends-logs/77314>\
**Category:** Logstash\
**Created:** [March 3, 2017, 1:10pm UTC](https://discuss.elastic.co/t/how-to-check-logstash-sends-logs/77314 "2017-03-03T13:10:49Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![hispeed](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/hispeed/32/16232_2.png) [@hispeed](https://discuss.elastic.co/u/hispeed)\
**Post date:** [March 7, 2017, 5:56pm UTC](https://discuss.elastic.co/t/how-to-check-logstash-sends-logs/77314/5 "2017-03-07T17:56:55Z")

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Hi Magnus,

This thread can be closed. It is the same problem as in the following post:

> [@Can't load an invalid configuration (:reason=\>"Expected one of #](https://discuss.elastic.co/t/cant-load-an-invalid-configuration-reason-expected-one-of/77422/5):
>
> Hmm there i have the problem. I don't really understand the grokking patterns and the config files from Logstash. So I don't know how I can do that what you want me to do. So if someone has some hints for me concerning commenting out which parts and test, I'm open to do it. In Kibana i have the following sentence: unable to fetch mapping. Do you have indices matching the pattern?

Thanks for closing.

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