ruby-on-rails - Rake 因 Capistrano 部署而失败

Question

我正在使用 Capistrano 部署到 Ubuntu。

我为后台进程设置了 God + Resque。

应用程序运行良好，Resque 工作人员正在排队，但被卡在那里。当我查看日志时，我发现它的 Rake 失败了。这是跟踪:

FIRST THERE IS ABOUT 1000 OF THE BELOW LINE

/home/ubuntu/myapp/releases/20120724024732/config/application.rb:68:in `invoke'
/home/ubuntu/myapp/shared/bundle/ruby/1.9.1/gems/rake-0.9.2.2/lib/rake/application.rb:116:in `invoke_task'
/home/ubuntu/myapp/shared/bundle/ruby/1.9.1/gems/rake-0.9.2.2/lib/rake/application.rb:94:in `block (2 levels) in top_level'
/home/ubuntu/myapp/shared/bundle/ruby/1.9.1/gems/rake-0.9.2.2/lib/rake/application.rb:94:in `each'
/home/ubuntu/myapp/shared/bundle/ruby/1.9.1/gems/rake-0.9.2.2/lib/rake/application.rb:94:in `block in top_level'
/home/ubuntu/myapp/shared/bundle/ruby/1.9.1/gems/rake-0.9.2.2/lib/rake/application.rb:133:in `standard_exception_handling'
/home/ubuntu/myapp/shared/bundle/ruby/1.9.1/gems/rake-0.9.2.2/lib/rake/application.rb:88:in `top_level'
/home/ubuntu/myapp/shared/bundle/ruby/1.9.1/gems/rake-0.9.2.2/lib/rake/application.rb:66:in `block in run'
/home/ubuntu/myapp/shared/bundle/ruby/1.9.1/gems/rake-0.9.2.2/lib/rake/application.rb:133:in `standard_exception_handling'
/home/ubuntu/myapp/shared/bundle/ruby/1.9.1/gems/rake-0.9.2.2/lib/rake/application.rb:63:in `run'
/home/ubuntu/myapp/shared/bundle/ruby/1.9.1/gems/rake-0.9.2.2/bin/rake:33:in `<top (required)>'
/home/ubuntu/.rvm/gems/ruby-1.9.3-p125@global/bin/rake:19:in `load'
/home/ubuntu/.rvm/gems/ruby-1.9.3-p125@global/bin/rake:19:in `<main>'
/home/ubuntu/.rvm/gems/ruby-1.9.3-p125/bin/ruby_noexec_wrapper:14:in `eval'
/home/ubuntu/.rvm/gems/ruby-1.9.3-p125/bin/ruby_noexec_wrapper:14:in `<main>'
rake aborted!
Too many open files - rake_tasks_log.log
/home/ubuntu/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/1.9.1/open-uri.rb:35:in `initialize'
/home/ubuntu/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/1.9.1/open-uri.rb:35:in `open'
/home/ubuntu/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/1.9.1/open-uri.rb:35:in `open'
/home/ubuntu/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/1.9.1/logger.rb:592:in `open_logfile'
/home/ubuntu/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/1.9.1/logger.rb:549:in `initialize'
/home/ubuntu/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/1.9.1/logger.rb:314:in `new'
/home/ubuntu/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/1.9.1/logger.rb:314:in `initialize'
/home/ubuntu/myapp/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.6/lib/active_support/core_ext/logger.rb:72:in `initialize'

这是 application.rb 第 68 行中标有注释的函数:

module Rake
  class Task
    alias_method :origin_invoke, :invoke if method_defined?(:invoke)
    def invoke(*args)
      logger = Logger.new('rake_tasks_log.log')
      logger.info "#{Time.now} -- #{name} -- #{args.inspect}"
      puts args
      origin_invoke(args) ### LINE 68
    end
  end
end

**编辑::这是一条线索，但不知道如何处理它::显然，正在传递的 *args 是一个空数组...

这是我的 deploy.rb

require "bundler/capistrano"


$:.unshift(File.expand_path('./lib', ENV['rvm_path']))
require 'rvm/capistrano'
set :rvm_ruby_string, ENV['GEM_HOME'].gsub(/.*\//,"") 
set :rvm_type, :user


# -*- encoding : utf-8 -*-

set :assets_dependencies, %w(app/assets lib/assets vendor/assets Gemfile.lock config/routes.rb)

namespace :deploy do
  namespace :assets do

    desc <<-DESC
      Run the asset precompilation rake task. You can specify the full path \
      to the rake executable by setting the rake variable. You can also \
      specify additional environment variables to pass to rake via the \
      asset_env variable. The defaults are:

        set :rake,      "rake"
        set :rails_env, "production"
        set :asset_env, "RAILS_GROUPS=assets"
        set :assets_dependencies, fetch(:assets_dependencies) + %w(config/locales/js)
    DESC
    task :precompile, :roles => :web, :except => { :no_release => true } do
      from = source.next_revision(current_revision)
      if capture("cd #{latest_release} && #{source.local.log(from)} #{assets_dependencies.join ' '} | wc -l").to_i > 0
        run %Q{cd #{latest_release} && #{rake} RAILS_ENV=#{rails_env} #{asset_env} assets:precompile}
      else
        logger.info "Skipping asset pre-compilation because there were no asset changes"
      end
    end

  end
end

set :application, "myapp"

set :repository, "git@github.com:..."
set :scm, :git
set :git_shallow_clone, 1
set :branch, "master"

set :location, "ec2-....amazonaws.com"
role :app, location
role :web, location
role :db,  location, :primary => true

set :deploy_via, :remote_cache


set :user, "ubuntu"
set :use_sudo, false
set :deploy_to, "/home/ubuntu/myapp"
ssh_options[:forward_agent] = true
default_run_options[:pty] = true
ssh_options[:keys] = ["#{ENV['HOME']}/...pem"]

set :keep_releases, 1

# setup some Capistrano roles
role :app, location
role :web, location
role :db,  location, :primary => true

set :default_environment, { 
  'PATH' => "/home/ubuntu/.rvm/gems/ruby-1.9.3-p125/bin:/home/ubuntu/.rvm/gems/ruby-1.9.3-p125@global/bin:/home/ubuntu/.rvm/rubies/ruby-1.9.3-p194/bin:/home/ubuntu/.rvm/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/lib/pkgconfig:/usr/lib/jvm/java-1.6.0-openjdk-amd64:/usr/lib/jvm/java-6-openjdk-amd64:$PATH",
  'JAVA_HOME' => "/usr/lib/jvm/java-6-openjdk-amd64",
  'PKG_CONFIG_PATH' => '$PKG_CONFIG_PATH:/usr/local/lib/pkgconfig'

}


desc "show path"
task :show_path do
  run "echo $PATH"
end

###PASSENGER:

namespace :passenger do
    desc "Restart Application"
    task :restart do
    run 'sudo /etc/init.d/nginx stop'
        run 'sudo /etc/init.d/nginx start'
    end
end


after :deploy, "passenger:restart"
after :deploy, "deploy:migrate"

最后一点 - 如果我不使用 Capistrano 一切正常(例如，只需将 Rails 应用程序文件夹复制到服务器).. 所以我想我在 Capistrano 方面遗漏了一些东西..

Answer 1

所以原来我的redis文件夹有权限问题，无法写入数据库。所以我检查了数据库文件的保存位置(或者在我的情况下不保存)并且 sudo chown redis:redis 现在一切都很好。