無法啟動獨角獸

Question

我想重新啟動Unicorn，以查看我在某些View上本地所做的一些編輯。

我能夠阻止獨角獸。 由於某種原因，它將無法重新啟動。

這是它給我的錯誤：

Executing /etc/rc.d/init.d/unicorn_loadmax start ..

/etc/rc.d/init.d/unicorn_loadmax: line 20: kill: (24317) - No such process
master failed to start, check stderr log for details

這是我的獨角獸劇本

#!/bin/sh
set -e
# Example init script, this can be used with nginx, too,
# since nginx and unicorn accept the same signals

# Feel free to change any of the following variables for your app:
TIMEOUT=${TIMEOUT-60}
APP_ROOT=/home/deployer/loadmax/current
PID=/home/deployer/loadmax/shared/pids/unicorn.pid
CMD="cd /home/deployer/loadmax/current && bundle exec /home/deployer/loadmax/shared/bundle/ruby/1.9.1/bin/unicorn -D -c /home/deployer/loadmax/shared/config/unicorn.rb -E production"
AS_USER=deployer
action="$1"
set -u

old_pid="$PID.oldbin"

cd $APP_ROOT || exit 1

sig () {
        test -s "$PID" && kill -$1 `cat $PID`
}

oldsig () {
        test -s $old_pid && kill -$1 `cat $old_pid`
}

case $action in
start)
        sig 0 && echo >&2 "Already running" && exit 0
        su -c "$CMD" - $AS_USER
        ;;
stop)
        sig QUIT && exit 0
        echo >&2 "Not running"
        ;;
force-stop)
        sig TERM && exit 0
        echo >&2 "Not running"
        ;;
restart|reload)
        sig USR2 && echo reloaded OK && exit 0
        echo >&2 "Couldn't reload, starting '$CMD' instead"
        su -c "$CMD" - $AS_USER
        ;;
upgrade)
        if sig USR2 && sleep 2 && sig 0 && oldsig QUIT
        then
                n=$TIMEOUT
                while test -s $old_pid && test $n -ge 0
                do
                        printf '.' && sleep 1 && n=$(( $n - 1 ))
                done
                echo

                if test $n -lt 0 && test -s $old_pid
                then
                        echo >&2 "$old_pid still exists after $TIMEOUT seconds"
                        exit 1
                fi
                exit 0
        fi
        echo >&2 "Couldn't upgrade, starting '$CMD' instead"
        su -c "$CMD" - $AS_USER
        ;;
reopen-logs)
        sig USR1
        ;;
*)
        echo >&2 "Usage: $0 <start|stop|restart|upgrade|force-stop|reopen-logs>"
        exit 1
        ;;
esac

日志文件：

I, [2014-03-24T15:25:07.830877 #13704]  INFO -- : Refreshing Gem list
        SECURITY WARNING: No secret option provided to Rack::Session::Cookie.
        This poses a security threat. It is strongly recommended that you
        provide a secret to prevent exploits that may be possible from crafted
        cookies. This will not be supported in future versions of Rack, and
        future versions will even invalidate your existing user cookies.

        Called from: /home/deployer/website/shared/bundle/ruby/1.9.1/gems/actionpack-3.2.3/lib/action_dispatch/middleware/session/abstract_store.rb:28:in `initialize'.

/home/deployer/website/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:251:in `require': /home/deployer/website/releases/20140111043133/app/models/document.rb:26: syntax error, unexpected tCONSTANT, expecting keyword_end (SyntaxError)
    from /home/deployer/website/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:251:in `block in require'
    from /home/deployer/website/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:236:in `load_dependency'
    from /home/deployer/website/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:251:in `require'
    from /home/deployer/website/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:359:in `require_or_load'
    from /home/deployer/website/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:502:in `load_missing_constant'
    from /home/deployer/website/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:192:in `block in const_missing'
    from /home/deployer/website/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:190:in `each'
    from /home/deployer/website/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:190:in `const_missing'
    from /home/deployer/website/shared/bundle/ruby/1.9.1/gems/rake-0.9.2.2/lib/rake/ext/module.rb:36:in `const_missing'
    from /home/deployer/website/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.3/lib/active_support/inflector/methods.rb:229:in `block in constantize'
    from /home/deployer/website/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.3/lib/active_support/inflector/methods.rb:228:in `each'
    from /home/deployer/website/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.3/lib/active_support/inflector/methods.rb:228:in `constantize'
    from /home/deployer/website/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.3/lib/active_support/inflector/methods.rb:259:in `safe_constantize'
    from /home/deployer/website/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.3/lib/active_support/core_ext/string/inflections.rb:66:in `safe_constantize'
    from /home/deployer/website/shared/bundle/ruby/1.9.1/gems/actionpack-3.2.3/lib/action_controller/metal/params_wrapper.rb:152:in `_default_wrap_model'
    from /home/deployer/website/shared/bundle/ruby/1.9.1/gems/actionpack-3.2.3/lib/action_controller/metal/params_wrapper.rb:169:in `_set_wrapper_defaults'
    from /home/deployer/website/shared/bundle/ruby/1.9.1/gems/actionpack-3.2.3/lib/action_controller/metal/params_wrapper.rb:133:in `inherited'
    from /home/deployer/website/shared/bundle/ruby/1.9.1/gems/actionpack-3.2.3/lib/abstract_controller/railties/routes_helpers.rb:7:in `block (2 levels) in with'
    from /home/deployer/website/shared/bundle/ruby/1.9.1/gems/actionpack-3.2.3/lib/action_controller/railties/paths.rb:7:in `block (2 levels) in with'
    from /home/deployer/website/releases/20140111043133/app/controllers/documents_controller.rb:1:in `<top (required)>'
    from /home/deployer/website/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:251:in `require'
    from /home/deployer/website/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:251:in `block in require'
    from /home/deployer/website/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:236:in `load_dependency'
    from /home/deployer/website/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:251:in `require'
    from /home/deployer/website/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:359:in `require_or_load'
    from /home/deployer/website/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:313:in `depend_on'
    from /home/deployer/website/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:225:in `require_dependency'
    from /home/deployer/website/shared/bundle/ruby/1.9.1/gems/railties-3.2.3/lib/rails/engine.rb:439:in `block (2 levels) in eager_load!'
    from /home/deployer/website/shared/bundle/ruby/1.9.1/gems/railties-3.2.3/lib/rails/engine.rb:438:in `each'
    from /home/deployer/website/shared/bundle/ruby/1.9.1/gems/railties-3.2.3/lib/rails/engine.rb:438:in `block in eager_load!'
    from /home/deployer/website/shared/bundle/ruby/1.9.1/gems/railties-3.2.3/lib/rails/engine.rb:436:in `each'
    from /home/deployer/website/shared/bundle/ruby/1.9.1/gems/railties-3.2.3/lib/rails/engine.rb:436:in `eager_load!'
    from /home/deployer/website/shared/bundle/ruby/1.9.1/gems/railties-3.2.3/lib/rails/application/finisher.rb:53:in `block in <module:Finisher>'
    from /home/deployer/website/shared/bundle/ruby/1.9.1/gems/railties-3.2.3/lib/rails/initializable.rb:30:in `instance_exec'
    from /home/deployer/website/shared/bundle/ruby/1.9.1/gems/railties-3.2.3/lib/rails/initializable.rb:30:in `run'
    from /home/deployer/website/shared/bundle/ruby/1.9.1/gems/railties-3.2.3/lib/rails/initializable.rb:55:in `block in run_initializers'
    from /home/deployer/website/shared/bundle/ruby/1.9.1/gems/railties-3.2.3/lib/rails/initializable.rb:54:in `each'
    from /home/deployer/website/shared/bundle/ruby/1.9.1/gems/railties-3.2.3/lib/rails/initializable.rb:54:in `run_initializers'
    from /home/deployer/website/shared/bundle/ruby/1.9.1/gems/railties-3.2.3/lib/rails/application.rb:136:in `initialize!'
    from /home/deployer/website/shared/bundle/ruby/1.9.1/gems/railties-3.2.3/lib/rails/railtie/configurable.rb:30:in `method_missing'
    from /home/deployer/website/releases/20140111043133/config/environment.rb:5:in `<top (required)>'
    from config.ru:4:in `require'
    from config.ru:4:in `block in <main>'
    from /home/deployer/website/shared/bundle/ruby/1.9.1/gems/rack-1.4.5/lib/rack/builder.rb:51:in `instance_eval'
    from /home/deployer/website/shared/bundle/ruby/1.9.1/gems/rack-1.4.5/lib/rack/builder.rb:51:in `initialize'
    from config.ru:1:in `new'
    from config.ru:1:in `<main>'
    from /home/deployer/website/shared/bundle/ruby/1.9.1/gems/unicorn-4.6.2/lib/unicorn.rb:44:in `eval'
    from /home/deployer/website/shared/bundle/ruby/1.9.1/gems/unicorn-4.6.2/lib/unicorn.rb:44:in `block in builder'
    from /home/deployer/website/shared/bundle/ruby/1.9.1/gems/unicorn-4.6.2/lib/unicorn/http_server.rb:722:in `call'
    from /home/deployer/website/shared/bundle/ruby/1.9.1/gems/unicorn-4.6.2/lib/unicorn/http_server.rb:722:in `build_app!'
    from /home/deployer/website/shared/bundle/ruby/1.9.1/gems/unicorn-4.6.2/lib/unicorn/http_server.rb:140:in `start'
    from /home/deployer/website/shared/bundle/ruby/1.9.1/gems/unicorn-4.6.2/bin/unicorn:126:in `<top (required)>'
    from /home/deployer/website/shared/bundle/ruby/1.9.1/bin/unicorn:23:in `load'
    from /home/deployer/website/shared/bundle/ruby/1.9.1/bin/unicorn:23:in `<main>'

document.rb

class Document < ActiveRecord::Base
  attr_accessible :description, :filename, :filesize, :filetype, :name, :user_id
  belongs_to :user

  FILENAME_FORMAT = /^[a-zA-Z0-9_\.]+$/
  BAD_FILETYPE_FORMAT = /^Badfiletype$/
  MIME_HASH = { "doc" => "application/msword",
                "docx" => "application/msword",
                "dot" => "application/msword",
                "xml" => "application/xml",
                "pdf" => "application/pdf",
                "tif" => "image/tif",
                "txt" => "text/plain",
                "xls" => "application/vnd.ms-excel",
                "xlsx" => "application/vnd.ms-excel",
                "ppt" => "application/vnd.ms-powerpoint",
                "pptx" => "application/vnd.ms-powerpoint",
                "gif" => "image/gif",
                "png" => "image/png",
                "jpg" => "image/jpg",
                "jpeg" => "image/jpg",
                "ps" => "application/postscript",
                "rtf" => "application/rtf",
                "zip" => "application/zip" }

  validates_numericality_of :filesize, less_than: 50M
  validates_format_of :filename, with: FILENAME_FORMAT
  validates_format_of :filetype, without: BAD_FILETYPE_FORMAT
end

我昨天更改了第26行...

將2048更改為50M

Answer 1

您應該檢查日志中的確切錯誤。 但是，一個簡單的解決方法是終止進程並重新啟動獨角獸。

ps aux | grep unicorn

然后，在其中找到主進程。

kill <process-id>

然后，嘗試再次啟動服務器。

Answer 2

您的腳本在以下行崩潰：

test -s "$PID" && kill -$1 `cat $PID`

$PID設置在：

PID=/home/deployer/loadmax/shared/pids/unicorn.pid

然后test -s檢查文件是否存在，並且文件大小大於零。

嘗試刪除此文件，然后再次運行腳本。

---

至於第26行-嘗試刪除M它不是數字...-只需輸入50