# Logstash doesn't start after logstash.yml edit

**URL:** <https://discuss.elastic.co/t/logstash-doesnt-start-after-logstash-yml-edit/133394>\
**Category:** Logstash\
**Created:** [May 26, 2018, 1:40pm UTC](https://discuss.elastic.co/t/logstash-doesnt-start-after-logstash-yml-edit/133394 "2018-05-26T13:40:37Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![Vladimir\_Fomin](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/vladimir_fomin/32/31413_2.png) [@Vladimir\_Fomin](https://discuss.elastic.co/u/Vladimir_Fomin)\
**Post date:** [May 26, 2018, 1:40pm UTC](https://discuss.elastic.co/t/logstash-doesnt-start-after-logstash-yml-edit/133394/1 "2018-05-26T13:40:37Z")

</div>

I try to add netflow module to logstash.yml like this:

```
 modules:
   - name: netflow
     var.input.udp.port: 9996

```

But after save logstash.yml and service logstash start command logstash can't start.

```
logs form /var/log/logstash/logstash-plain.log is:
    [2018-05-26T13:12:08,178][INFO][logstash.pipeline] Pipeline has terminated {:pipeline_id=>"main", :thread=>"#<Thread:0x47cdeca3 run>"}
    [2018-05-26T13:16:05,920][INFO][logstash.modules.scaffold] Initializing module {:module_name=>"fb_apache", :directory=>"/opt/logstash/modules/fb_apache/configuration"}
    [2018-05-26T13:16:05,940][INFO][logstash.modules.scaffold] Initializing module {:module_name=>"netflow", :directory=>"/opt/logstash/modules/netflow/configuration"}
    [2018-05-26T13:16:06,466][WARN][logstash.config.source.multilocal] Ignoring the 'pipelines.yml' file because modules or command line options are specified
    [2018-05-26T13:16:06,495][ERROR][org.logstash.Logstash] java.lang.IllegalStateException: org.jruby.exceptions.RaiseException: (SystemExit) exit
    [2018-05-26T13:18:30,647][INFO][logstash.modules.scaffold] Initializing module {:module_name=>"fb_apache", :directory=>"/opt/logstash/modules/fb_apache/configuration"}
    [2018-05-26T13:18:30,665][INFO][logstash.modules.scaffold] Initializing module {:module_name=>"netflow", :directory=>"/opt/logstash/modules/netflow/configuration"}
    [2018-05-26T13:18:31,253][WARN][logstash.config.source.multilocal] Ignoring the 'pipelines.yml' file because modules or command line options are specified
    [2018-05-26T13:18:31,278][ERROR][org.logstash.Logstash] java.lang.IllegalStateException: org.jruby.exceptions.RaiseException: (SystemExit) exit
    [2018-05-26T13:24:19,854][INFO][logstash.modules.scaffold] Initializing module {:module_name=>"fb_apache", :directory=>"/opt/logstash/modules/fb_apache/configuration"}
    [2018-05-26T13:24:19,873][INFO][logstash.modules.scaffold] Initializing module {:module_name=>"netflow", :directory=>"/opt/logstash/modules/netflow/configuration"}
    [2018-05-26T13:24:20,430][WARN][logstash.config.source.multilocal] Ignoring the 'pipelines.yml' file because modules or command line options are specified
    [2018-05-26T13:24:20,456][ERROR][org.logstash.Logstash] java.lang.IllegalStateException: org.jruby.exceptions.RaiseException: (SystemExit) exit

root@fcc92ca4cf93:/# service logstash status
logstash is not running

```

If i delete module config from logstash it start normally. What's wrong?  
If I start logstash like this: `bin/logstash --modules netflow -M netflow.var.input.udp.port=9996, logstash has restarted. But I want to do permanent netflow binding to special port, after reboot server too.

---

<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:** [June 23, 2018, 1:40pm UTC](https://discuss.elastic.co/t/logstash-doesnt-start-after-logstash-yml-edit/133394/2 "2018-06-23T13:40:43Z")

</div>

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