# Testing log stash filter against data
**URL:** https://discuss.elastic.co/t/testing-log-stash-filter-against-data/56325
**Category:** Logstash
**Created:** [July 25, 2016, 6:03pm UTC](https://discuss.elastic.co/t/testing-log-stash-filter-against-data/56325 "2016-07-25T18:03:38Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@141984](https://discuss.elastic.co/u/141984)
#### Post date: [July 25, 2016, 6:03pm UTC](https://discuss.elastic.co/t/testing-log-stash-filter-against-data/56325/1 "2016-07-25T18:03:38Z")
Hi All,
When i try to test a log stash filter, against some data, like below
`/opt/logstash/bin/logstash -f /etc/logstash/conf.d/11-tomcat-filter.conf < /home/gibu_test/data4`
All i get in the output is:
Settings: Default pipeline workers: 2
Pipeline main started
Pipeline main has been shutdown
stopping pipeline {:id=\>"main"}
What does this mean?why isn't it able to parse the data?
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### Author:  [@141984](https://discuss.elastic.co/u/141984)
#### Post date: [July 25, 2016, 6:17pm UTC](https://discuss.elastic.co/t/testing-log-stash-filter-against-data/56325/2 "2016-07-25T18:17:19Z")
Added --verbose and --debug, seeing output now.
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### Author:  [@niraj\_kumar](https://discuss.elastic.co/u/niraj_kumar)
#### Post date: [July 25, 2016, 6:44pm UTC](https://discuss.elastic.co/t/testing-log-stash-filter-against-data/56325/3 "2016-07-25T18:44:25Z")
Does this work for you after adding the data? If not can you paste the logstash config.
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### Author:  [@magnusbaeck](https://discuss.elastic.co/u/magnusbaeck)
#### Post date: [July 30, 2016, 12:18pm UTC](https://discuss.elastic.co/t/testing-log-stash-filter-against-data/56325/4 "2016-07-30T12:18:41Z")
Unless your 11-tomcat-filter.conf contains a stdin input and e.g. a stdout output you don't have any inputs or outputs.
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 6, 2017, 4:45am UTC](https://discuss.elastic.co/t/testing-log-stash-filter-against-data/56325/5 "2017-07-06T04:45:45Z")