# Logstash unhandled exception

**URL:** <https://discuss.elastic.co/t/logstash-unhandled-exception/49798>\
**Category:** Logstash\
**Created:** [May 11, 2016, 3:54pm UTC](https://discuss.elastic.co/t/logstash-unhandled-exception/49798 "2016-05-11T15:54:09Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Zfs](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/zfs/32/13370_2.png) [@Zfs](https://discuss.elastic.co/u/Zfs)\
**Post date:** [May 11, 2016, 3:54pm UTC](https://discuss.elastic.co/t/logstash-unhandled-exception/49798/1 "2016-05-11T15:54:09Z")

</div>

I've started to see these exceptions thrown after updating to 2.3.2.

Source is beats 1.2.2

Logstash  
input {  
beats {  
port =\> "5001"  
add\_field =\> { "beats" =\> "topic"}  
}  
}

I have 3 instances of logstash running on the same server ports 5001,5002,5003.

←[31mBeats input: unhandled exception {:exception=\>#fbroker6NoMethodError: undefined method fbroker6fbroker6fbroker6fbroker6 for nil:NilClass\>, :backtrace=\>["F:/ELK/logstash-2.3.2/vendor/bundle/jruby/1.9/gems/logstash-input-beats-2.2.8/lib/lumberjack/beats/server.rb:248:in fbroker6feedfbroker6", "F:/ELK/logstash-2.3.2/vendor/bundle/jruby/1.9/gems/logstash-input-beats-2.2.8/lib/lumberjack/beats/server.rb:384:in fbroker6compressed\_payloadfbroker6", "F:/ELK/logstash-2.3.2/vendor/bundle/jruby/1.9/gems/logstash-input-beats-2.2.8/lib/lumberjack/beats/server.rb:251:in fbroker6feedfbroker6", "F:/ELK/logstash-2.3.2/vendor/bundle/jruby/1.9/gems/logstash-input-beats-2.2.8/lib/lumberjack/beats/server.rb:462:in fbroker6read\_socketfbroker6", "F:/ELK/logstash-2.3.2/vendor/bundle/jruby/1.9/gems/logstash-input-beats-2.2.8/lib/lumberjack/beats/server.rb:442:in fbroker6runfbroker6", "F:/ELK/logstash-2.3.2/vendor/bundle/jruby/1.9/gems/logstash-input-beats-2.2.8/lib/logstash/inputs/beats\_support/connection\_handler.rb:34:in fbroker6acceptfbroker6", "F:/ELK/logstash-2.3.2/vendor/bundle/jruby/1.9/gems/logstash-input-beats-2.2.8/lib/logstash/inputs/beats.rb:211:in fbroker6handle\_new\_connectionfbroker6", "F:/ELK/logstash-2.3.2/vendor/bundle/jruby/1.9/gems/logstash-input-beats-2.2.8/lib/logstash/inputs/beats\_support/circuit\_breaker.rb:42:in fbroker6executefbroker6", "F:/ELK/logstash-2.3.2/vendor/bundle/jruby/1.9/gems/logstash-input-beats-2.2.8/lib/logstash/inputs/beats.rb:211:in fbroker6handle\_new\_connectionfbroker6", "F:/ELK/logstash-2.3.2/vendor/bundle/jruby/1.9/gems/logstash-input-beats-2.2.8/lib/logstash/inputs/beats.rb:167:in fbroker6runfbroker6"], :level=\>:error}←[0m

←[31mBeats input: unhandled exception {:exception=\>#fbroker6Zlib::BufError: buffer error\>, :backtrace=\>["org/jruby/ext/zlib/ZStream.java:134:in fbroker6finishfbroker6", "org/jruby/ext/zlib/JZlibInflate.java:72:in fbroker6inflatefbroker6", "F:/ELK/logstash-2.3.2/vendor/bundle/jruby/1.9/gems/logstash-input-beats-2.2.8/lib/lumberjack/beats/server.rb:380:in fbroker6compressed\_payloadfbroker6", "F:/ELK/logstash-2.3.2/vendor/bundle/jruby/1.9/gems/logstash-input-beats-2.2.8/lib/lumberjack/beats/server.rb:251:in fbroker6feedfbroker6", "F:/ELK/logstash-2.3.2/vendor/bundle/jruby/1.9/gems/logstash-input-beats-2.2.8/lib/lumberjack/beats/server.rb:462:in fbroker6read\_socketfbroker6", "F:/ELK/logstash-2.3.2/vendor/bundle/jruby/1.9/gems/logstash-input-beats-2.2.8/lib/lumberjack/beats/server.rb:442:infbroker6runfbroker6", "F:/ELK/logstash-2.3.2/vendor/bundle/jruby/1.9/gems/logstash-input-beats-2.2.8/lib/logstash/inputs/beats\_support/connection\_handler.rb:34:infbroker6acceptfbroker6",  
"F:/ELK/logstash-2.3.2/vendor/bundle/jruby/1.9/gems/logstash-input-beats-2.2.8/lib/logstash/inputs/beats.rb:211:in fbroker6handle\_new\_connectionfbroker6", "F:/ELK/logstash-2.3.2/vendor/bundle/jruby/1.9/gems/logstash-input-beats-2.2.8/lib/logstash/inputs/beats\_support/circuit\_breaker.rb:42:in fbroker6executefbroker6", "F:/ELK/logstash-2.3.2/vendor/bundle/jruby/1.9/gems/logstash-input-beats-2.2.8/lib/logstash/inputs/beats.rb:211:in fbroker6handle\_new\_connectionfbroker6", "F:/ELK/logstash-2.3.2/vendor/bundle/jruby/1.9/gems/logstash-input-beats-2.2.8/lib/logstash/inputs/beats.rb:167:in fbroker6runfbroker6"], :level=\>:error}←[0m

---

<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:** [July 6, 2017, 4:58am UTC](https://discuss.elastic.co/t/logstash-unhandled-exception/49798/2 "2017-07-06T04:58:10Z")

</div>