Fail to use logstash-output-gelf

Elastic Stack Logstash
1

Hello,

I'm trying to use logstash-output-gelf to send logs to a Graylog instance.
I've installed a fresh logstash-6.0.0 and installed the plugin with :

logstash-plugin install logstash-output-gelf

No error at this point.

I've added this block on my logstash config file (that worked out with rubydebug) :

gelf {
host => '192.168.56.101'
port => 12201
}

Logstash fails with this error when I run it :

[2017-11-30T11:11:29,507][FATAL][logstash.runner ] An unexpected error occurred! {:error=>#<NoMethodError: undefined method time' for nil:NilClass>, :backtrace=>["/tmp/logstash/logstash-core/lib/logstash/timestamp.rb:13:in <=>'", "org/jruby/RubyComparable.java:150:in =='", "/tmp/logstash/vendor/bundle/jruby/2.3.0/gems/logstash-output-gelf-3.1.4/lib/logstash/outputs/gelf.rb:146:in block in receive'", "org/jruby/RubyHash.java:1343:in each'", "/tmp/logstash/vendor/bundle/jruby/2.3.0/gems/logstash-output-gelf-3.1.4/lib/logstash/outputs/gelf.rb:145:in receive'", "/tmp/logstash/logstash-core/lib/logstash/outputs/base.rb:92:in block in multi_receive'", "org/jruby/RubyArray.java:1734:in each'", "/tmp/logstash/logstash-core/lib/logstash/outputs/base.rb:92:in multi_receive'", "/tmp/logstash/logstash-core/lib/logstash/output_delegator_strategies/legacy.rb:22:in multi_receive'", "/tmp/logstash/logstash-core/lib/logstash/output_delegator.rb:49:in multi_receive'", "/tmp/logstash/logstash-core/lib/logstash/pipeline.rb:538:in block in output_batch'", "org/jruby/RubyHash.java:1343:in each'", "/tmp/logstash/logstash-core/lib/logstash/pipeline.rb:536:in output_batch'", "/tmp/logstash/logstash-core/lib/logstash/pipeline.rb:481:in worker_loop'", "/tmp/logstash/logstash-core/lib/logstash/pipeline.rb:439:in block in start_workers'"]}

Any idea on what I did wrong ?

Cheers.

2

I've just tried with previous version (5.6.4) and it works as expected.

3

Hi,
I would say look to get this issue added here: https://github.com/logstash-plugins/logstash-output-gelf/issues
As this could be something that other users will be effected by. Thanks.