Add TCP Support

[talevy]

migrated from: https://logstash.jira.com/browse/LOGSTASH-780

Graylog 0.10 starts supporting TCP transport for gelf.
Since this enables safer transport than UDP, I suggest extending the gelf input/output with a TCP option.

[florian-asche]

+1

Gelf-rb starts support of gelf tcp. Please suggest extending!

[runningman84]

this looks like a simple change:

# old
# @gelf ||= GELF::Notifier.new(@host, @port, @chunksize)
# new
@gelf ||= GELF::Notifier.new(@host, @port, "LAN", { :protocol => GELF::Protocol::TCP })

[rcord02]

+1
would be awesome if this will be availible in the next release!

[danlsgiga]

+1... This is a must for our environment. Please bring this new feature in the next release.
Also, @runningman84 I've tested the simple change you suggested but it does not work.

[danlsgiga]

FYI...
graylog-labs/gelf-rb#21

[ghost]

Are there any plans to work on this enhancement? TCP is a must for deploying a scalable Graylog cluster in AWS, since AWS elastic load balancers do not support UDP

[alpha-centauri]

Still no TCP in 2017?! So TCP support in Graylog2/gelf-rb has been developed all in vain, indeed.

[runningman84]

this can be closed due to #19

[Moeser]

For those landing on this from Google, the TCP option for logstash's gelf output plugin has been available since v3.0.0 of the plugin. There's a (currently undocumented) option you can add to the output plugin protocol => "TCP" that switches it to TCP instead of UDP.

[davesave]

I hope someday someone will fine the time and update 'docs/index.asciidoc' with this hidden protocol => "tcp" option.