Fluentd作為一個日志收集系統，其用戶還是非常大的，可是安裝Fluentd的步驟非常繁瑣，許多人在安裝的時候就遇到了難題，下面小編就給大家介紹下RedHat安裝Fluentd的方法。
下載fluentd安裝包並解壓
tar zxvf fluentd-0.10.6.tar.gz
cd fluentd-0.10.6
。/configure
make
切換到root賬號
make install
提示如下
rake aborted！
Unable to determine name from existing gemspec. Use ：name =》 ‘gemname’ in #install_tasks to manually set it.
/usr/local/lib/fluent/ruby/lib/ruby/gems/1.9.1/gems/bundler-1.2.1/lib/bundler/gem_helper.rb:30:in `initialize‘
/usr/local/lib/fluent/ruby/lib/ruby/gems/1.9.1/gems/bundler-1.2.1/lib/bundler/gem_helper.rb:14:in `new’
/usr/local/lib/fluent/ruby/lib/ruby/gems/1.9.1/gems/bundler-1.2.1/lib/bundler/gem_helper.rb:14:in `install_tasks‘
/home/aircom/fluentd-0.10.6/Rakefile:6：in `《top （required）》’
/usr/local/lib/fluent/ruby/lib/ruby/1.9.1/rake.rb:2373:in `load‘
/usr/local/lib/fluent/ruby/lib/ruby/1.9.1/rake.rb:2373:in `raw_load_rakefile’
/usr/local/lib/fluent/ruby/lib/ruby/1.9.1/rake.rb:2007:in `block in load_rakefile‘
/usr/local/lib/fluent/ruby/lib/ruby/1.9.1/rake.rb:2058:in `standard_exception_handling’
/usr/local/lib/fluent/ruby/lib/ruby/1.9.1/rake.rb:2006:in `load_rakefile‘
/usr/local/lib/fluent/ruby/lib/ruby/1.9.1/rake.rb:1991:in `run’
-e:1：in `《main》‘
make： *** ［install］ Error 1
安裝ruby
rz ruby-1.9.3-p0.tar.gz
tar zxvf ruby-1.9.3-p0.tar.gz
cd ruby-1.9.3-p0
。/configure
make
make install
驗證ruby
［root@Server201 ruby-1.9.3-p0］# ruby -v
得到提示信息
ruby 1.9.3p0 （2011-10-30 revision 33570） ［x86_64-linux］
執行安裝
gem install fluentd
提示如下，不必理會，等待安裝，稍等一會兒（視網絡情況）可看到安裝進度。
/usr/local/lib/ruby/1.9.1/yaml.rb:56:in `《top （required）》’：
It seems your ruby installation is missing psych （for YAML output）。
To eliminate this warning， please install libyaml and reinstall your ruby.
命令執行完之後
執行fluentd --setup
提示Installed /etc/fluent/fluent.conf.
執行fluentd -c fluent.conf -vv &
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