昨天，一个不受欢迎的访客在我的服务器周围胡闹。从那以后，我重新启动了 ubuntu 并更改了密码。现在我尝试部署我的 rails 应用程序，但出现错误。
这是重要的部分：
** [out :: 172.27.12.xxx] /usr/local/rvm/rubies/ruby-1.9.3-p392/bin/ruby /usr/local/rvm/gems/ruby-1.9.3-p392/bin/rake assets:precompile:all RAILS_ENV=production RAILS_GROUPS=assets
** [out :: 172.27.12.xxx] /usr/local/rvm/rubies/ruby-1.9.3-p327/bin/ruby /usr/local/rvm/gems/ruby-1.9.3-p327/bin/rake assets:precompile:all RAILS_ENV=production RAILS_GROUPS=assets
** [out :: 172.27.12.xxx] /usr/local/rvm/rubies/ruby-1.9.3-p327/bin/ruby /usr/local/rvm/gems/ruby-1.9.3-p327@global/bin/rake assets:precompile:all RAILS_ENV=production RAILS_GROUPS=assets
*** [deploy:update_code] rolling back
* executing "rm -rf /home/guarddog/public_html/guarddog.com/releases/20131220150214; true"
servers: ["172.27.12.xxx", "172.27.12.xxx", "172.27.12.xxx"]
** [deploy:update_code] exception while rolling back: IOError, closed stream
这是错误的堆栈跟踪：
Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/net-ssh-2.6.2/lib/net/ssh/buffered_io.rb:65:in `recv': Operation timed out - recvfrom(2) (Errno::ETIMEDOUT)
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/net-ssh-2.6.2/lib/net/ssh/buffered_io.rb:65:in `fill'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/net-ssh-2.6.2/lib/net/ssh/connection/session.rb:228:in `block in postprocess'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/net-ssh-2.6.2/lib/net/ssh/connection/session.rb:224:in `each'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/net-ssh-2.6.2/lib/net/ssh/connection/session.rb:224:in `postprocess'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/processable.rb:31:in `block in process_iteration'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/processable.rb:43:in `block in ensure_each_session'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/processable.rb:41:in `each'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/processable.rb:41:in `ensure_each_session'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/processable.rb:29:in `process_iteration'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/command.rb:165:in `block (2 levels) in process!'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/command.rb:164:in `loop'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/command.rb:164:in `block in process!'
from /Users/guarddog/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/benchmark.rb:295:in `realtime'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/command.rb:163:in `process!'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/command.rb:134:in `process'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/configuration/actions/invocation.rb:185:in `block in run_tree'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/configuration/connections.rb:198:in `block in execute_on_servers'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/configuration/connections.rb:186:in `each'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/configuration/connections.rb:186:in `each_slice'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/configuration/connections.rb:186:in `execute_on_servers'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/configuration/actions/invocation.rb:183:in `run_tree'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/configuration/actions/invocation.rb:155:in `run'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/configuration/namespaces.rb:191:in `method_missing'
from ./config/deploy.rb:77:in `block (2 levels) in load'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/configuration/execution.rb:138:in `instance_eval'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/configuration/execution.rb:138:in `invoke_task_directly'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/configuration/callbacks.rb:25:in `invoke_task_directly_with_callbacks'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/configuration/execution.rb:89:in `execute_task'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/configuration/execution.rb:101:in `find_and_execute_task'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/callback.rb:38:in `call'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/configuration/callbacks.rb:141:in `block in trigger'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/configuration/callbacks.rb:141:in `each'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/configuration/callbacks.rb:141:in `trigger'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/configuration/callbacks.rb:27:in `invoke_task_directly_with_callbacks'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/configuration/execution.rb:89:in `execute_task'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/configuration/namespaces.rb:191:in `method_missing'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/configuration/namespaces.rb:110:in `block in define_task'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/recipes/deploy.rb:228:in `block (3 levels) in load'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/configuration/execution.rb:56:in `transaction'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/configuration/namespaces.rb:191:in `method_missing'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/recipes/deploy.rb:227:in `block (2 levels) in load'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/configuration/execution.rb:138:in `instance_eval'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/configuration/execution.rb:138:in `invoke_task_directly'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/configuration/callbacks.rb:25:in `invoke_task_directly_with_callbacks'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/configuration/execution.rb:89:in `execute_task'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/configuration/namespaces.rb:191:in `method_missing'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/configuration/namespaces.rb:110:in `block in define_task'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/recipes/deploy.rb:195:in `block (2 levels) in load'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/configuration/execution.rb:138:in `instance_eval'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/configuration/execution.rb:138:in `invoke_task_directly'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/configuration/callbacks.rb:25:in `invoke_task_directly_with_callbacks'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/configuration/execution.rb:89:in `execute_task'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/configuration/execution.rb:101:in `find_and_execute_task'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/cli/execute.rb:46:in `block in execute_requested_actions'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/cli/execute.rb:45:in `each'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/cli/execute.rb:45:in `execute_requested_actions'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/cli/help.rb:19:in `execute_requested_actions_with_help'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/cli/execute.rb:34:in `execute!'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/lib/capistrano/cli/execute.rb:14:in `execute'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/gems/capistrano-2.13.5/bin/cap:4:in `<top (required)>'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/bin/cap:19:in `load'
from /Users/guarddog/.rvm/gems/ruby-1.9.3-p0/bin/cap:19:in `<main>'
我认为值得注意的部分是这一行：
from ./config/deploy.rb:77:in `block (2 levels) in load'
这是我的 deploy.rb 文件中的实际代码：
task :precompile, :role => :app do
run "cd #{release_path}/ && RAILS_ENV=production bundle exec rake assets:precompile"
end
由于我的 deploy.rb 中的这一行而执行：
after "deploy:update_code", "deploy:precompile"
请注意，在昨天事件发生之前，部署工作正常。他似乎克隆了 git 存储库并将其复制到某个地方。但他似乎没有删除任何文件。
知道为什么 deploy：precompile 会出现错误吗？
听起来您的远程代码库可能已被破坏。 我建议使用
cap deploy:check
cap deploy:cleanup
cap deploy:cold
以重新部署原始代码库的新副本。
这不会修改您的远程数据库，但会重新启动远程 httpd 服务器，因此，与任何部署一样，您应该等到合适的维护窗口再尝试。