Created attachment 1054230 [details]
start stop of poller daemon with named-pipe module

Description of problem:

The following traceback is observed when stopping the poller daemon:
[1437467506] ERROR: [Shinken] Worker '1' exit with an unmanaged exception : Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/shinken/worker.py", line 226, in work
    self.do_work(s, returns_queue, c)
  File "/usr/lib/python2.7/site-packages/shinken/worker.py", line 268, in do_work
    self.get_new_checks()
  File "/usr/lib/python2.7/site-packages/shinken/worker.py", line 146, in get_new_checks
    msg = self.s.get(block=False)
  File "<string>", line 2, in get
  File "/usr/lib64/python2.7/multiprocessing/managers.py", line 759, in _callmethod
    kind, result = conn.recv()
EOFError

This issue does not appear when using KillMode "process", instead of the default "control-group",
to be closer to the behavior of the SysV init script.


Version-Release number of selected component (if applicable):

shinken-arbiter-2.2-6.el7.noarch
shinken-scheduler-2.2-6.el7.noarch
shinken-reactionner-2.2-6.el7.noarch
shinken-broker-2.2-6.el7.noarch
shinken-poller-2.2-6.el7.noarch
shinken-receiver-2.2-6.el7.noarch
shinken-2.2-6.el7.noarch


How reproducible:

Always

Steps to Reproduce:
1. add a module (e.g. named-pipe) to a daemon (e.g. poller)
2. start it (wait for the configuration to be received) and stop it

Actual results:

Traceback and slow stop.

Expected results:

No traceback and fast stop.

Additional info:

pollerd log attached with start stop sequence and traceback issue.

systemd unit modification:
[root@centos7 shinken]# diff -up /usr/lib/systemd/system/shinken-poller.service.ORIG  /usr/lib/systemd/system/shinken-poller.service
--- /usr/lib/systemd/system/shinken-poller.service.ORIG 2015-07-21 04:34:00.712000000 -0400
+++ /usr/lib/systemd/system/shinken-poller.service      2015-07-21 04:48:13.018000000 -0400
@@ -5,6 +5,7 @@ After=syslog.target
 [Service]
 Type=forking
 ExecStart=/usr/sbin/shinken-poller -d -c /etc/shinken/daemons/pollerd.ini
+KillMode=process

 [Install]
 WantedBy=multi-user.target