Fluentd作为一个日志收集系统，其用户还是非常大的，可是安装Fluentd的步骤非常繁琐，许多人在安装的时候就遇到了难题，下面小编就给大家介绍下RedHat安装Fluentd的方法。

下载fluentd安装包并解压

tar zxvf fluentd-0.10.6.tar.gz

cd fluentd-0.10.6

。/configure

make

切换到root账号

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

安装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

验证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］

执行安装

gem install fluentd

提示如下，不必理会，等待安装，稍等一会儿（视网络情况）可看到安装进度。

/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.

命令执行完之后

执行fluentd --setup

提示Installed /etc/fluent/fluent.conf.

执行fluentd -c fluent.conf -vv &