Random failure of starting workers about capistrano-resque HOT 10 CLOSED

  * 2013-05-08 21:05:57 executing `resque:restart'
  * 2013-05-08 21:05:57 executing `resque:stop'
  * executing "if [ -e /home/webuser/www/xxx/current/tmp/pids/resque_work_1.pid ]; then            for f in `ls /home/webuser/www/xxx/current/tmp/pids/resque_work*.pid`;              do  kill -s QUIT `cat $f`              && rm $f ;done            ;fi"
    servers: ["api.xxx.com"]
    [api.xxx.com] executing command
    command finished in 1845ms
  * 2013-05-08 21:05:59 executing `resque:start'
 ** Starting 1 worker(s) with QUEUE: auth
  * executing "cd /home/webuser/www/xxx/current && RAILS_ENV=staging QUEUE=\"auth\"            PIDFILE=./tmp/pids/resque_work_1.pid BACKGROUND=yes VERBOSE=1 INTERVAL=5            bundle exec rake resque:work"
    servers: ["api.xxx.com"]
    [api.xxx.com] executing command
    command finished in 15525ms
 ** Starting 1 worker(s) with QUEUE: apn
  * executing "cd /home/webuser/www/xxx/current && RAILS_ENV=staging QUEUE=\"apn\"            PIDFILE=./tmp/pids/resque_work_2.pid BACKGROUND=yes VERBOSE=1 INTERVAL=5            bundle exec rake resque:work"
    servers: ["api.xxx.com"]
    [api.xxx.com] executing command
    command finished in 15179ms

➜  xxx git:(master) cap staging resque:status
    triggering load callbacks
  * 2013-05-08 21:08:10 executing `staging'
    triggering start callbacks for `resque:status'
  * 2013-05-08 21:08:10 executing `multistage:ensure'
  * 2013-05-08 21:08:10 executing `resque:status'
  * executing "if [ -e /home/webuser/www/xxx/current/tmp/pids/resque_work_1.pid ]; then             for f in $(ls /home/webuser/www/xxx/current/tmp/pids/resque_work*.pid);               do ps -p $(cat $f) | sed -n 2p ; done            ;fi"
    servers: ["api.xxx.com"]
    [api.xxx.com] executing command
 ** [out :: api.xxx.com] 9575 ?        00:00:00 ruby
    command finished in 2023ms

[webuser@staging pids]$ ll
total 8
-rw-rw-r-- 1 webuser webuser 4 May  8 13:06 resque_work_1.pid
-rw-rw-r-- 1 webuser webuser 4 May  8 13:06 resque_work_2.pid
[webuser@staging pids]$ ps aux| grep resque
webuser   9575  0.0  2.5 383280 97160 ?        Sl   13:06   0:00 resque-1.23.0: Waiting for auth
webuser   9948  0.0  0.0 10342