# UDP listener died. IOError: closed stream

**URL:** <https://discuss.elastic.co/t/udp-listener-died-ioerror-closed-stream/44009>\
**Category:** Logstash\
**Created:** [March 10, 2016, 10:35am UTC](https://discuss.elastic.co/t/udp-listener-died-ioerror-closed-stream/44009 "2016-03-10T10:35:43Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Alexey\_Khudyakov](https://avatars.discourse-cdn.com/v4/letter/a/dfb087/32.png) [@Alexey\_Khudyakov](https://discuss.elastic.co/u/Alexey_Khudyakov)\
**Post date:** [March 10, 2016, 10:35am UTC](https://discuss.elastic.co/t/udp-listener-died-ioerror-closed-stream/44009/1 "2016-03-10T10:35:43Z")

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Dear community,

I'm evaluating logstash and stuck on this problem with a UDP Input.  
The part of config  
input {  
udp {  
port =\> 9995  
type =\> "netflow"  
}  
}  
Logstash version is 2.2.2  
OS is Centos Linux 7, selinux is disabled.

Firewall port is open

# firewall-cmd --zone=dmz --permanent --list-ports

1514/udp 9995/udp 1514/tcp 9997/tcp

Trace:

{:timestamp=\>"2016-03-10T13:02:31.930000+0300", :message=\>"UDP listener died", :exception=\>#\<IOError: closed stream\>, :backtrace=\>["org/jruby/RubyIO.java:3682:in `select'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/logstash-input-udp-2.0.3/lib/logstash/inputs/udp.rb:77:in`udp\_listener'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/logstash-input-udp-2.0.3/lib/logstash/inputs/udp.rb:50:in `run'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/logstash-core-2.2.2-java/lib/logstash/pipeline.rb:331:in`inputworker'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/logstash-core-2.2.2-java/lib/logstash/pipeline.rb:325:in `start\_input'"], :level=\>:warn}

Please, help me to workaround the issue.  
Thank you.

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<div class="post-metadata">

**Author:** ![Alexey\_Khudyakov](https://avatars.discourse-cdn.com/v4/letter/a/dfb087/32.png) [@Alexey\_Khudyakov](https://discuss.elastic.co/u/Alexey_Khudyakov)\
**Post date:** [March 11, 2016, 1:10pm UTC](https://discuss.elastic.co/t/udp-listener-died-ioerror-closed-stream/44009/2 "2016-03-11T13:10:44Z")

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Anyone? ☹

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**Author:** ![rajraja](https://avatars.discourse-cdn.com/v4/letter/r/dfb087/32.png) [@rajraja](https://discuss.elastic.co/u/rajraja)\
**Post date:** [December 21, 2016, 10:27am UTC](https://discuss.elastic.co/t/udp-listener-died-ioerror-closed-stream/44009/4 "2016-12-21T10:27:50Z")

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I am also facing same issue..

[2016-12-21T10:18:12,558][WARN][logstash.inputs.udp] UDP listener died {:exception=\>#\<IOError: closed stream\>, :backtrace=\>["org/jruby/RubyIO.java:3705:in `select'", "/usr/share/logstash/vendor/bundle/jruby/1.9/gems/logstash-input-udp-3.1.0/lib/logstash/inputs/udp.rb:93:in`udp\_listener'", "/usr/share/logstash/vendor/bundle/jruby/1.9/gems/logstash-input-udp-3.1.0/lib/logstash/inputs/udp.rb:56:in `run'", "/usr/share/logstash/logstash-core/lib/logstash/pipeline.rb:365:in`inputworker'", "/usr/share/logstash/logstash-core/lib/logstash/pipeline.rb:359:in `start\_input'"]}  
[2016-12-21T10:18:28,182][INFO][logstash.inputs.udp] Starting UDP listener {:address=\>"0.0.0.0:12201"}

Regards,  
Raja

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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:** [July 6, 2017, 4:29am UTC](https://discuss.elastic.co/t/udp-listener-died-ioerror-closed-stream/44009/5 "2017-07-06T04:29:45Z")

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