我有一个安装在RHEL 6机器上的Rails 4应用程序。
生产环境使用Passenger和Apache2。
最近我一直在尝试使用Whenever Gem和Cron将Rake任务整合到生产环境中作为定时任务。
每当我尝试在生产环境中运行其中一个Rake任务时,都会出现以下错误:
rake aborted!
ExecJS::RuntimeUnavailable: Could not find a JavaScript runtime. See https://github.com/sstephenson/execjs for a list of available runtimes.
需要提及的是NodeJS已安装在机器上,我可以预编译资产等操作。具体而言,命令node --version
将产生:v0.10.31
以下是我的堆栈跟踪:
rake aborted!
ExecJS::RuntimeUnavailable: Could not find a JavaScript runtime. See https://github.com/sstephenson/execjs for a list of available runtimes.
/var/www/eng_performance/shared/bundle/ruby/2.0.0/gems/execjs-2.2.1/lib/execjs/runtimes.rb:51:in `autodetect'
/var/www/eng_performance/shared/bundle/ruby/2.0.0/gems/execjs-2.2.1/lib/execjs.rb:5:in `<module:ExecJS>'
/var/www/eng_performance/shared/bundle/ruby/2.0.0/gems/execjs-2.2.1/lib/execjs.rb:4:in `<top (required)>'
/var/www/eng_performance/shared/bundle/ruby/2.0.0/gems/activesupport-4.0.4/lib/active_support/dependencies.rb:229:in `require'
/var/www/eng_performance/shared/bundle/ruby/2.0.0/gems/activesupport-4.0.4/lib/active_support/dependencies.rb:229:in `block in require'
/var/www/eng_performance/shared/bundle/ruby/2.0.0/gems/activesupport-4.0.4/lib/active_support/dependencies.rb:214:in `load_dependency'
/var/www/eng_performance/shared/bundle/ruby/2.0.0/gems/activesupport-4.0.4/lib/active_support/dependencies.rb:229:in `require'
/var/www/eng_performance/shared/bundle/ruby/2.0.0/gems/uglifier-2.5.3/lib/uglifier.rb:3:in `<top (required)>'
/home/deploy/.rvm/gems/ruby-2.0.0-p481/gems/bundler-1.7.2/lib/bundler/runtime.rb:76:in `require'
/home/deploy/.rvm/gems/ruby-2.0.0-p481/gems/bundler-1.7.2/lib/bundler/runtime.rb:76:in `block (2 levels) in require'
/home/deploy/.rvm/gems/ruby-2.0.0-p481/gems/bundler-1.7.2/lib/bundler/runtime.rb:72:in `each'
/home/deploy/.rvm/gems/ruby-2.0.0-p481/gems/bundler-1.7.2/lib/bundler/runtime.rb:72:in `block in require'
/home/deploy/.rvm/gems/ruby-2.0.0-p481/gems/bundler-1.7.2/lib/bundler/runtime.rb:61:in `each'
/home/deploy/.rvm/gems/ruby-2.0.0-p481/gems/bundler-1.7.2/lib/bundler/runtime.rb:61:in `require'
/home/deploy/.rvm/gems/ruby-2.0.0-p481/gems/bundler-1.7.2/lib/bundler.rb:133:in `require'
/var/www/eng_performance/releases/20141014084554/config/application.rb:7:in `<top (required)>'
/var/www/eng_performance/releases/20141014084554/Rakefile:4:in `require'
/var/www/eng_performance/releases/20141014084554/Rakefile:4:in `<top (required)>'
(See full trace by running task with --trace)
注意: 我已经从源代码编译安装了NodeJS,因为当我尝试从仓库安装时,遇到了一个我不知道如何解决的错误:
Packages skipped because of dependency problems:
c-ares19-1.9.1-5.el6.3.x86_64 from epel
http-parser-2.0-4.20121128gitcd01361.el6.x86_64 from epel
1:libuv-0.10.28-1.el6.x86_64 from epel
nodejs-0.10.30-1.el6.x86_64 from epel
1:v8-3.14.5.10-11.el6.x86_64 from epel
gem 'therubyracer'
。 - R Milushevnodejs
的经验不佳。它必须以非常特殊的方式安装,因此我们决定依赖于therubyracer
gem。我认为没有性能问题,因为它是一个V8 js机器包装器,没有更多或更少。 - R Milushev