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[Jianghua Wang <wjh_fresh@xxxxxxx>]

Public bug reported:


1. After run the script of https://git.openstack.org/cgit/openstack-infra/system-config/plain/install_puppet.sh;
execute the command of "restart ssh" but it gets hang. 
2. And if we use "status ssh", we can see there is pid in the output.
3. I noticed that there are multiple upstart-* daemon processes running: e.g.  there are two upstart-socket-bridge.
4. it can get recover via a machine reboot.


root@devstack:~# ps -ef | grep start
root       293     1  0 05:23 ?        00:00:00 upstart-udev-bridge --daemon
root       653     1  0 05:23 ?        00:00:00 upstart-file-bridge --daemon
root       676     1  0 05:23 ?        00:00:00 upstart-socket-bridge --daemon
root      5192     1  0 05:32 ?        00:00:00 upstart-udev-bridge --daemon
root      5379     1  0 05:32 ?        00:00:00 upstart-file-bridge --daemon
root      5382     1  0 05:32 ?        00:00:00 upstart-socket-bridge --daemon
root     13584     1  0 05:33 ?        00:00:00 upstart-udev-bridge --daemon

$restart ssh    ---> hang at here
$ status ssh
ssh start/running    ---> no pid

# the running sshd started before running the script; restart didn't terminate it and of course it can't start a new instance as 
sshd limited to be run single instance. Another observation is that the additinal upstart-* processes started during the 
install_puppet.sh running.
root      1875     1  0 05:27 ?        00:00:00 /usr/sbin/sshd -D
root     19284     1  0 05:35 ?        00:00:00 [sshd] <defunct>


root@one-dev-ci-controller:/etc/nodepool# uname -a
Linux one-dev-ci-controller 3.13.0-58-generic #97-Ubuntu SMP Wed Jul 8 02:56:15 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

** Affects: nova
     Importance: Undecided
         Status: Invalid

** Changed in: nova
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/1493792

Title:
  upstart hang after running install_puppet.sh

Status in OpenStack Compute (nova):
  Invalid

Bug description:

  1. After run the script of https://git.openstack.org/cgit/openstack-infra/system-config/plain/install_puppet.sh;
  execute the command of "restart ssh" but it gets hang. 
  2. And if we use "status ssh", we can see there is pid in the output.
  3. I noticed that there are multiple upstart-* daemon processes running: e.g.  there are two upstart-socket-bridge.
  4. it can get recover via a machine reboot.

  
  root@devstack:~# ps -ef | grep start
  root       293     1  0 05:23 ?        00:00:00 upstart-udev-bridge --daemon
  root       653     1  0 05:23 ?        00:00:00 upstart-file-bridge --daemon
  root       676     1  0 05:23 ?        00:00:00 upstart-socket-bridge --daemon
  root      5192     1  0 05:32 ?        00:00:00 upstart-udev-bridge --daemon
  root      5379     1  0 05:32 ?        00:00:00 upstart-file-bridge --daemon
  root      5382     1  0 05:32 ?        00:00:00 upstart-socket-bridge --daemon
  root     13584     1  0 05:33 ?        00:00:00 upstart-udev-bridge --daemon

  $restart ssh    ---> hang at here
  $ status ssh
  ssh start/running    ---> no pid

  # the running sshd started before running the script; restart didn't terminate it and of course it can't start a new instance as 
  sshd limited to be run single instance. Another observation is that the additinal upstart-* processes started during the 
  install_puppet.sh running.
  root      1875     1  0 05:27 ?        00:00:00 /usr/sbin/sshd -D
  root     19284     1  0 05:35 ?        00:00:00 [sshd] <defunct>

  
  root@one-dev-ci-controller:/etc/nodepool# uname -a
  Linux one-dev-ci-controller 3.13.0-58-generic #97-Ubuntu SMP Wed Jul 8 02:56:15 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

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