# Logstash - complex filtering

**URL:** https://discuss.elastic.co/t/logstash-complex-filtering/85433
**Category:** Logstash
**Created:** [May 11, 2017, 3:19pm UTC](https://discuss.elastic.co/t/logstash-complex-filtering/85433 "2017-05-11T15:19:08Z")
**Posts on this page:** 1
**Showing post:** 3

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### Author: ![Vedran\_Maricevic](https://avatars.discourse-cdn.com/v4/letter/v/57b2e6/32.png) [@Vedran\_Maricevic](https://discuss.elastic.co/u/Vedran_Maricevic)
#### Post date: [May 12, 2017, 7:32am UTC](https://discuss.elastic.co/t/logstash-complex-filtering/85433/3 "2017-05-12T07:32:32Z")

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Thank you for reply. I have found at the documentation that multiline codec in Logstash should be [avoided](https://www.elastic.co/guide/en/beats/filebeat/current/configuration-filebeat-options.html#multiline).

therefore I have move to multiline in filebeat., in this [thread](https://discuss.elastic.co/t/multiline-configuration-several-prospectors/85511).

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