# How to run a verification bloc (one time) after scheduled output

**URL:** <https://discuss.elastic.co/t/how-to-run-a-verification-bloc-one-time-after-scheduled-output/245898>\
**Category:** Logstash\
**Created:** [August 21, 2020, 9:56am UTC](https://discuss.elastic.co/t/how-to-run-a-verification-bloc-one-time-after-scheduled-output/245898 "2020-08-21T09:56:59Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![RiadhBH](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/riadhbh/32/74303_2.png) [@RiadhBH](https://discuss.elastic.co/u/RiadhBH)\
**Post date:** [August 21, 2020, 9:57am UTC](https://discuss.elastic.co/t/how-to-run-a-verification-bloc-one-time-after-scheduled-output/245898/1 "2020-08-21T09:57:00Z")

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Hi,  
I'm using this configuration: SqlServer --\> LogStash --\> {ElasticSearch, Mysql}.

I need to verify the number of input data (from logstash) and the output data (from mysql).

It is possible to query elasticsearch onetime after all received data is handled by logstash.

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [September 18, 2020, 9:57am UTC](https://discuss.elastic.co/t/how-to-run-a-verification-bloc-one-time-after-scheduled-output/245898/2 "2020-09-18T09:57:02Z")

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