Rpm install logstash but while start it error!

Elastic Stack Logstash
1

[root@ESK01 logstash]# ./bin/plugin install logstash-input-beats
Validating logstash-input-beats
ERROR: Installation aborted, verification failed for logstash-input-beats
start logstash that log report error:
[root@ESK01 logstash]# tail -f -n 10 /var/log/logstash/logstash.log

{:timestamp=>"2016-01-15T18:16:09.799000+0800", :message=>"Beats input: unhandled exception", :exception=>#<RuntimeError: unsupported protocol 72>, :backtrace=>["/opt/logstash/vendor/bundle/jruby/1.9/gems/logstash-input-beats-2.0.3/lib/lumberjack/beats/server.rb:225:in handle_version'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/logstash-input-beats-2.0.3/lib/lumberjack/beats/server.rb:210:inheader'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/logstash-input-beats-2.0.3/lib/lumberjack/beats/server.rb:163:in feed'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/logstash-input-beats-2.0.3/lib/lumberjack/beats/server.rb:342:inread_socket'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/logstash-input-beats-2.0.3/lib/lumberjack/beats/server.rb:319:in run'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/logstash-input-beats-2.0.3/lib/logstash/inputs/beats.rb:184:ininvoke'", "org/jruby/RubyProc.java:281:in call'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/concurrent-ruby-0.9.2-java/lib/concurrent/executor/executor_service.rb:515:inrun'", "Concurrent$$JavaExecutorService$$Job_754842357.gen:13:in `run'"], :level=>:error}

2

What LS version.

3

oh I'm sorry it is my own problem I don't have pointed to filebeat logstash, logstash listening on port 5044 But have not received any data.May be because of this error.I modified filebeat configuration file and point to logstash after problem solved.I am logstash version 2.1.1.

4

Logstash - input - beats plug-in seems to be installed by default.By way of RPM.