# Logstash can judge will be output to the elasticsearch index exists

**URL:** https://discuss.elastic.co/t/logstash-can-judge-will-be-output-to-the-elasticsearch-index-exists/80778
**Category:** Logstash
**Created:** [March 31, 2017, 7:19am UTC](https://discuss.elastic.co/t/logstash-can-judge-will-be-output-to-the-elasticsearch-index-exists/80778 "2017-03-31T07:19:13Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![qin](https://avatars.discourse-cdn.com/v4/letter/q/91b2a8/32.png) [@qin](https://discuss.elastic.co/u/qin)
#### Post date: [March 31, 2017, 7:19am UTC](https://discuss.elastic.co/t/logstash-can-judge-will-be-output-to-the-elasticsearch-index-exists/80778/1 "2017-03-31T07:19:13Z")

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**Logstash can judge will be output to the elasticsearch index exists？**

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### 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 31, 2017, 9:01am UTC](https://discuss.elastic.co/t/logstash-can-judge-will-be-output-to-the-elasticsearch-index-exists/80778/2 "2017-03-31T09:01:03Z")

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It's very hard to understand what you're asking. Could you try to rephrase and maybe use an example?

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### Author: ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)
#### Post date: [April 28, 2017, 9:01am UTC](https://discuss.elastic.co/t/logstash-can-judge-will-be-output-to-the-elasticsearch-index-exists/80778/3 "2017-04-28T09:01:10Z")

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