# Unable to output to Kafka Topic

**URL:** <https://discuss.elastic.co/t/unable-to-output-to-kafka-topic/79960>\
**Category:** Logstash\
**Created:** [March 24, 2017, 10:37pm UTC](https://discuss.elastic.co/t/unable-to-output-to-kafka-topic/79960 "2017-03-24T22:37:09Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![ademaria](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/ademaria/32/16715_2.png) [@ademaria](https://discuss.elastic.co/u/ademaria)\
**Post date:** [March 24, 2017, 10:37pm UTC](https://discuss.elastic.co/t/unable-to-output-to-kafka-topic/79960/1 "2017-03-24T22:37:09Z")

</div>

Hello,

I am trying to output to a kafka topic but it does not seem to work properly.  
I am using logstash 5.2.2 with the latest logstash-output-kafka

the test setup is:

```
input {
  file {
    path => "/var/log/dpkg.log"
    start_position => "beginning"
  }
}
output {
  kafka {
    bootstrap_servers => "es-kafka1:9092"
    topic_id => "logs"
  }
}

```

the topic has already been created. Kafka is 0.10.2.0

Regards  
Alessandro

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<div class="post-metadata">

**Author:** ![ademaria](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/ademaria/32/16715_2.png) [@ademaria](https://discuss.elastic.co/u/ademaria)\
**Post date:** [March 24, 2017, 10:51pm UTC](https://discuss.elastic.co/t/unable-to-output-to-kafka-topic/79960/2 "2017-03-24T22:51:22Z")

</div>

0.10.0.1 doesn't work either

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<div class="post-metadata">

**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:** [March 27, 2017, 7:18am UTC](https://discuss.elastic.co/t/unable-to-output-to-kafka-topic/79960/3 "2017-03-27T07:18:44Z")

</div>

> I am trying to output to a kafka topic but it does not seem to work properly.

What does this mean, exactly? Are there any error messages in the Logstash log, for example?

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<div class="post-metadata">

**Author:** ![ademaria](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/ademaria/32/16715_2.png) [@ademaria](https://discuss.elastic.co/u/ademaria)\
**Post date:** [April 4, 2017, 11:52am UTC](https://discuss.elastic.co/t/unable-to-output-to-kafka-topic/79960/4 "2017-04-04T11:52:08Z")

</div>

Hi,

apologies for the delay. The error ended up being that the client certificates I had created in PKCS12 format were not correct. Thank you and sorry for not being more verbose.

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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:** [May 2, 2017, 11:52am UTC](https://discuss.elastic.co/t/unable-to-output-to-kafka-topic/79960/5 "2017-05-02T11:52:11Z")

</div>

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