# JDBC input plugin : back pressure?

**URL:** <https://discuss.elastic.co/t/jdbc-input-plugin-back-pressure/229065>\
**Category:** Logstash\
**Created:** [April 21, 2020, 2:03pm UTC](https://discuss.elastic.co/t/jdbc-input-plugin-back-pressure/229065 "2020-04-21T14:03:05Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![deslauriersp](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/deslauriersp/32/47685_2.png) [@deslauriersp](https://discuss.elastic.co/u/deslauriersp)\
**Post date:** [April 21, 2020, 2:03pm UTC](https://discuss.elastic.co/t/jdbc-input-plugin-back-pressure/229065/1 "2020-04-21T14:03:05Z")

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I have a pipiline, with a jdbc input, http filter (adds data from a rest service), and an http output.

The JDBC input, seem to run on a schedule.

What will happen if all the events created by the previous query have not been processed before the next execution of the Jdbc Input plugin?

Is it back-pressure sensitive? If output to HTTP received 429 response code, will the jdbc plugin play nice, or just keep querying on schedule.?

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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:** [May 19, 2020, 2:03pm UTC](https://discuss.elastic.co/t/jdbc-input-plugin-back-pressure/229065/2 "2020-05-19T14:03:12Z")

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