# Logstash crash with FATAL error

**URL:** https://discuss.elastic.co/t/logstash-crash-with-fatal-error/258919
**Category:** Logstash
**Created:** [December 16, 2020, 10:21pm UTC](https://discuss.elastic.co/t/logstash-crash-with-fatal-error/258919 "2020-12-16T22:21:40Z")
**Posts on this page:** 1
**Showing post:** 3

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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: [December 16, 2020, 10:26pm UTC](https://discuss.elastic.co/t/logstash-crash-with-fatal-error/258919/3 "2020-12-16T22:26:56Z")

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That looks a lot like [this](https://discuss.elastic.co/t/comparing-number-in-conditionnal-event-treatement/217043/5) -- doing a numeric conditional on a field that does exist.

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