# Debug if output reaches elastic search from logstash

**URL:** <https://discuss.elastic.co/t/debug-if-output-reaches-elastic-search-from-logstash/50986>\
**Category:** Logstash\
**Created:** [May 25, 2016, 9:01pm UTC](https://discuss.elastic.co/t/debug-if-output-reaches-elastic-search-from-logstash/50986 "2016-05-25T21:01:02Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![vikas\_J](https://avatars.discourse-cdn.com/v4/letter/v/7ba0ec/32.png) [@vikas\_J](https://discuss.elastic.co/u/vikas_J)\
**Post date:** [May 25, 2016, 9:01pm UTC](https://discuss.elastic.co/t/debug-if-output-reaches-elastic-search-from-logstash/50986/1 "2016-05-25T21:01:02Z")

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I have log stash configured to send output to both love beat and elastic search. On feeding log stash through filebeat, log stash sends output to love beat immediately, however i don't see the the data sent to elastic search being indexed when the output is of smaller size. How do i debug if output from log stash is reaching elastic search or not?

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**Author:** ![vikas\_J](https://avatars.discourse-cdn.com/v4/letter/v/7ba0ec/32.png) [@vikas\_J](https://discuss.elastic.co/u/vikas_J)\
**Post date:** [May 25, 2016, 9:05pm UTC](https://discuss.elastic.co/t/debug-if-output-reaches-elastic-search-from-logstash/50986/2 "2016-05-25T21:05:31Z")

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I guess its due to buffering happening at elastic search before the output from log stash is indexed. How do i change this setting to a lower value in elastic search?

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**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\
**Post date:** [May 25, 2016, 10:30pm UTC](https://discuss.elastic.co/t/debug-if-output-reaches-elastic-search-from-logstash/50986/3 "2016-05-25T22:30:18Z")

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Probably this - [https://www.elastic.co/guide/en/logstash/current/plugins-outputs-elasticsearch.html#plugins-outputs-elasticsearch-flush\_size](https://www.elastic.co/guide/en/logstash/current/plugins-outputs-elasticsearch.html#plugins-outputs-elasticsearch-flush_size)

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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:** [July 6, 2017, 4:56am UTC](https://discuss.elastic.co/t/debug-if-output-reaches-elastic-search-from-logstash/50986/4 "2017-07-06T04:56:10Z")

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