# EOFError: End of file reached

**URL:** <https://discuss.elastic.co/t/eoferror-end-of-file-reached/204933>\
**Category:** Logstash\
**Created:** [October 23, 2019, 6:13pm UTC](https://discuss.elastic.co/t/eoferror-end-of-file-reached/204933 "2019-10-23T18:13:55Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Senthil\_ak](https://avatars.discourse-cdn.com/v4/letter/s/eb9ed0/32.png) [@Senthil\_ak](https://discuss.elastic.co/u/Senthil_ak)\
**Post date:** [October 23, 2019, 6:13pm UTC](https://discuss.elastic.co/t/eoferror-end-of-file-reached/204933/1 "2019-10-23T18:13:55Z")

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Hi,  
I am routing logstash logs to another logstash using TCP, there is no connection issue between them and I am able to telnet. but while sending the logs getting below error. Is that a bug ?

```auto
[2019-10-22T14:50:48,395][WARN][logstash.outputs.tcp] tcp output exception {:host=>"xxx.xx.xx.xx", :port=>xxxx, :exception=>#<EOFError: End of file reached>, :backtrace=>["org/jruby/RubyIO.java:3021:in `sysread'", "/usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/logstash-output-tcp-6.0.0/lib/logstash/outputs/tcp.rb:158:in `block in register'", "/usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/logstash-codec-json-3.0.5/lib/logstash/codecs/json.rb:42:in `encode'", "/usr/share/logstash/logstash-core/lib/logstash/codecs/delegator.rb:31:in `block in encode'", "org/logstash/instrument/metrics/AbstractSimpleMetricExt.java:45:in `time'", "org/logstash/instrument/metrics/AbstractNamespacedMetricExt.java:44:in `time'", "/usr/share/logstash/logstash-core/lib/logstash/codecs/delegator.rb:30:in `encode'", "/usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/logstash-output-tcp-6.0.0/lib/logstash/outputs/tcp.rb:203:in `receive'", "/usr/share/logstash/logstash-core/lib/logstash/outputs/base.rb:89:in `block in multi_receive'", "org/jruby/RubyArray.java:1792:in `each'", "/usr/share/logstash/logstash-core/lib/logstash/outputs/base.rb:89:in `multi_receive'", "org/logstash/config/ir/compiler/OutputStrategyExt.java:118:in `multi_receive'", "org/logstash/config/ir/compiler/AbstractOutputDelegatorExt.java:101:in `multi_receive'", "/usr/share/logstash/logstash-core/lib/logstash/java_pipeline.rb:239:in `block in start_workers'"]}

```

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<div class="post-metadata">

**Author:** ![Badger](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/badger/32/25190_2.png) [@Badger](https://discuss.elastic.co/u/Badger)\
**Post date:** [October 23, 2019, 6:30pm UTC](https://discuss.elastic.co/t/eoferror-end-of-file-reached/204933/2 "2019-10-23T18:30:06Z")

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EOFError for a tcp output typically indicates that the remove server closed the connection. What gets logged over there?

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<div class="post-metadata">

**Author:** ![Senthil\_ak](https://avatars.discourse-cdn.com/v4/letter/s/eb9ed0/32.png) [@Senthil\_ak](https://discuss.elastic.co/u/Senthil_ak)\
**Post date:** [October 23, 2019, 6:31pm UTC](https://discuss.elastic.co/t/eoferror-end-of-file-reached/204933/3 "2019-10-23T18:31:19Z")

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Ok i will go to Network team again for the trace and check.  
Nothing .... there is not logs on the other logstash.

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<div class="post-metadata">

**Author:** ![Senthil\_ak](https://avatars.discourse-cdn.com/v4/letter/s/eb9ed0/32.png) [@Senthil\_ak](https://discuss.elastic.co/u/Senthil_ak)\
**Post date:** [October 31, 2019, 5:52pm UTC](https://discuss.elastic.co/t/eoferror-end-of-file-reached/204933/4 "2019-10-31T17:52:33Z")

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Its resolved, TCP never worked we switched it to UDP.

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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:** [November 28, 2019, 5:52pm UTC](https://discuss.elastic.co/t/eoferror-end-of-file-reached/204933/5 "2019-11-28T17:52:36Z")

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