搭建环境

很容易 按照 logstash.net 上的learn进行操作

其中当File的input时候，出现了错误

Exception in thread "LogStash::Runner" org.jruby.exceptions.RaiseException: (NotImplementedError) stat.st_dev unsupported or native support failed to load
        at org.jruby.RubyFileStat.dev_major(org/jruby/RubyFileStat.java:394)
        at RUBY._discover_file(jar:file:/home/phab/logstash/logstash-1.1.9-monolithic.jar!/gems/filewatch-0.5.0/lib/filewatch/watch.rb:140)
        at org.jruby.RubyArray.each(org/jruby/RubyArray.java:1612)
        at RUBY._discover_file(jar:file:/home/phab/logstash/logstash-1.1.9-monolithic.jar!/gems/filewatch-0.5.0/lib/filewatch/watch.rb:122)
        at RUBY.watch(jar:file:/home/phab/logstash/logstash-1.1.9-monolithic.jar!/gems/filewatch-0.5.0/lib/filewatch/watch.rb:34)
        at RUBY.tail(jar:file:/home/phab/logstash/logstash-1.1.9-monolithic.jar!/gems/filewatch-0.5.0/lib/filewatch/tail.rb:58)
        at RUBY.run(file:/home/phab/logstash/logstash-1.1.9-monolithic.jar!/logstash/inputs/file.rb:124)
        at org.jruby.RubyArray.each(org/jruby/RubyArray.java:1612)
        at RUBY.run(file:/home/phab/logstash/logstash-1.1.9-monolithic.jar!/logstash/inputs/file.rb:124)
        at RUBY.run_input(file:/home/phab/logstash/logstash-1.1.9-monolithic.jar!/logstash/agent.rb:714)
        at RUBY.start_input(file:/home/phab/logstash/logstash-1.1.9-monolithic.jar!/logstash/agent.rb:367)

解决
出问题的机器

Description:    Red Hat Enterprise Linux AS release 4 (Nahant Update 7)

换到机器

Description:    CentOS release 5.4 (Final)

OK