# Why is there no output in terminal?

**URL:** <https://discuss.elastic.co/t/why-is-there-no-output-in-terminal/69251>\
**Category:** Logstash\
**Created:** [December 16, 2016, 7:18am UTC](https://discuss.elastic.co/t/why-is-there-no-output-in-terminal/69251 "2016-12-16T07:18:19Z")\
**Posts on this page:** 6\
**Page:** 1

<div class="post-metadata">

**Author:** ![houfan](https://avatars.discourse-cdn.com/v4/letter/h/47e85d/32.png) [@houfan](https://discuss.elastic.co/u/houfan)\
**Post date:** [December 16, 2016, 7:18am UTC](https://discuss.elastic.co/t/why-is-there-no-output-in-terminal/69251/1 "2016-12-16T07:18:19Z")

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version: logstash-2.3.4  
nginx-1.8.1

here is my logstash.conf 🙂 :

**input {**  
\*\* file{\*\*  
\*\* path =\> ["/home/houfan/nginx/errorlog/ac\_api\_error.log"]\*\*  
\*\* start\_position =\> "beginning"\*\*  
\*\* }\*\*  
**}**  
**filter {**  
\*\* grok {\*\*  
\*\* match =\> { "message" =\> ["(?\d{4}/\d{2}/\d{2} \d{2}:\d{2}:\d{2}) [%{DATA:nginx\_severity}] %{NOTSPACE} %{NOTSPACE} (?\<nginx\_message\>(.|\r|\n)\*)(?:, client: (?\<nginx\_client\_ip\>%{IP}|%{HOSTNAME}))(?:, server: %{IPORHOST:nginx\_server})(?:, request: %{QS:nginx\_request})?(?:, upstream: %{QS:upstream})?(?:, host: %{QS:nginx\_host})?(?:, referrer: "%{URI:nginx\_referrer})?"]}\*\*  
\*\* }\*\*  
**}**

**output {**  
\*\* stdout {\*\*  
\*\* codec =\> rubydebug\*\*  
\*\* }\*\*  
**}**

and after I ran the command ./bin/logstash -f logstash.conf ,I only got this:

**root@logstashServer:/elk/logstash# ./bin/logstash -f logstash.conf**  
**Settings: Default pipeline workers: 4**  
**Pipeline main started**

no error , no red light .........where am I go wrong ?  
really appreciate your help .😭

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<div class="post-metadata">

**Author:** ![houfan](https://avatars.discourse-cdn.com/v4/letter/h/47e85d/32.png) [@houfan](https://discuss.elastic.co/u/houfan)\
**Post date:** [December 16, 2016, 7:19am UTC](https://discuss.elastic.co/t/why-is-there-no-output-in-terminal/69251/2 "2016-12-16T07:19:28Z")

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the path in the input section is absolutely right. I can sure.

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<div class="post-metadata">

**Author:** ![RdrgPorto](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/rdrgporto/32/13278_2.png) [@RdrgPorto](https://discuss.elastic.co/u/RdrgPorto)\
**Post date:** [December 16, 2016, 11:56am UTC](https://discuss.elastic.co/t/why-is-there-no-output-in-terminal/69251/3 "2016-12-16T11:56:59Z")

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Hi,

You can use the parameter " **ignore\_older**" in the input section (maybe it solves the problem):

```
input {
file {
     path => "/home/houfan/nginx/errorlog/ac_api_error.log"
     start_position => "beginning"
     ignore_older => 0
     }
}

```

Regards

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<div class="post-metadata">

**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:** [December 17, 2016, 1:07am UTC](https://discuss.elastic.co/t/why-is-there-no-output-in-terminal/69251/4 "2016-12-17T01:07:42Z")

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It's waiting for new data to be added to the file.

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<div class="post-metadata">

**Author:** ![houfan](https://avatars.discourse-cdn.com/v4/letter/h/47e85d/32.png) [@houfan](https://discuss.elastic.co/u/houfan)\
**Post date:** [December 20, 2016, 7:04am UTC](https://discuss.elastic.co/t/why-is-there-no-output-in-terminal/69251/5 "2016-12-20T07:04:22Z")

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😍 really really thanks !!!

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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:** [January 17, 2017, 7:04am UTC](https://discuss.elastic.co/t/why-is-there-no-output-in-terminal/69251/6 "2017-01-17T07:04:22Z")

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