# Using Logstash to read from a log file and then output each log lines to Kafka topic, cannot understand why it is not putting file content to kafka topic specified in conf file

**URL:** https://discuss.elastic.co/t/using-logstash-to-read-from-a-log-file-and-then-output-each-log-lines-to-kafka-topic-cannot-understand-why-it-is-not-putting-file-content-to-kafka-topic-specified-in-conf-file/365499
**Category:** Logstash
**Created:** [August 25, 2024, 10:31am UTC](https://discuss.elastic.co/t/using-logstash-to-read-from-a-log-file-and-then-output-each-log-lines-to-kafka-topic-cannot-understand-why-it-is-not-putting-file-content-to-kafka-topic-specified-in-conf-file/365499 "2024-08-25T10:31:22Z")
**Posts on this page:** 1
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### Author: ![Badger](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/badger/32/25190_2.png) [@Badger](https://discuss.elastic.co/u/Badger)
#### Post date: [August 25, 2024, 5:00pm UTC](https://discuss.elastic.co/t/using-logstash-to-read-from-a-log-file-and-then-output-each-log-lines-to-kafka-topic-cannot-understand-why-it-is-not-putting-file-content-to-kafka-topic-specified-in-conf-file/365499/10 "2024-08-25T17:00:47Z")

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Enable log.level trace as described [here](https://discuss.elastic.co/t/logstash-wildcards-regex-not-working/164204/2). It's very verbose, but it will tell you what the file input is seeing.

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