BIND 10 #627: bind10 crash if cfgmgr can't read configuration

[BIND 10 Development]

#627: bind10 crash if cfgmgr can't read configuration
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           Reporter:  jreed         |                      Owner:
               Type:  defect        |                     Status:  new
           Priority:  major         |                  Milestone:
          Component:  Unclassified  |                   Keywords:
          Sensitive:  0             |  Estimated Number of Hours:  0
Add Hours to Ticket:  0             |                  Billable?:  1
        Total Hours:  0             |                  Internal?:  0
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 {{{

 bind10 20101129 (BIND 10 20110120)
 [bind10] Checking for already running b10-msgq
 [bind10] Starting b10-msgq
 [bind10] Started b10-msgq (PID 19478)
 [bind10] Starting b10-cfgmgr
 [bind10] Started b10-cfgmgr (PID 15860)
 [b10-cfgmgr] Can't read configuration file: [Errno 13] Permission denied:
 '/home/reed/opt/bind10/var/bind10-devel/b10-config.db'
 [b10-msgq] Closing socket fd 5
 [bind10] Starting ccsession
 [b10-msgq] Receive error: EOF
 [bind10] killing started processes:
 [bind10] - b10-cfgmgr
 Traceback (most recent call last):
   File "/home/reed/opt/bind10/lib/python3.1/site-
 packages/isc/cc/session.py", line 184, in _receive_full_buffer
     self._receive_len_data()
   File "/home/reed/opt/bind10/lib/python3.1/site-
 packages/isc/cc/session.py", line 144, in _receive_len_data
     new_data = self._receive_bytes(self._recv_len_size)
   File "/home/reed/opt/bind10/lib/python3.1/site-
 packages/isc/cc/session.py", line 130, in _receive_bytes
     data = self._socket.recv(size)
 socket.timeout: timed out

 During handling of the above exception, another exception occurred:

 Traceback (most recent call last):
   File "/home/reed/opt/bind10/lib/python3.1/site-
 packages/isc/config/ccsession.py", line 326, in __request_config
     answer, env = self._session.group_recvmsg(False, seq)
   File "/home/reed/opt/bind10/lib/python3.1/site-
 packages/isc/cc/session.py", line 247, in group_recvmsg
     env, msg  = self.recvmsg(nonblock, seq)
   File "/home/reed/opt/bind10/lib/python3.1/site-
 packages/isc/cc/session.py", line 108, in recvmsg
     data = self._receive_full_buffer(nonblock)
   File "/home/reed/opt/bind10/lib/python3.1/site-
 packages/isc/cc/session.py", line 199, in _receive_full_buffer
     raise SessionTimeout("recv() on cc session timed out")
 isc.cc.session.SessionTimeout: recv() on cc session timed out

 During handling of the above exception, another exception occurred:

 Traceback (most recent call last):
   File "/home/reed/opt/bind10/sbin/bind10", line 580, in startup
     self.start_all_processes()
   File "/home/reed/opt/bind10/sbin/bind10", line 520, in
 start_all_processes
     self.start_ccsession(c_channel_env)
   File "/home/reed/opt/bind10/sbin/bind10", line 417, in start_ccsession
     self.ccs.start()
   File "/home/reed/opt/bind10/lib/python3.1/site-
 packages/isc/config/ccsession.py", line 164, in start
     self.__request_config()
   File "/home/reed/opt/bind10/lib/python3.1/site-
 packages/isc/config/ccsession.py", line 340, in __request_config
     raise ModuleCCSessionError("CC Session timeout waiting for
 configuration manager")
 isc.config.ccsession.ModuleCCSessionError: CC Session timeout waiting for
 configuration manager

 During handling of the above exception, another exception occurred:

 Traceback (most recent call last):
   File "/home/reed/opt/bind10/sbin/bind10", line 959, in <module>
     main()
   File "/home/reed/opt/bind10/sbin/bind10", line 898, in main
     startup_result = boss_of_bind.startup()
   File "/home/reed/opt/bind10/sbin/bind10", line 582, in startup
     self.kill_started_processes()
   File "/home/reed/opt/bind10/sbin/bind10", line 302, in
 kill_started_processes
     self.processes[pid].process.kill()
   File "/usr/pkg/lib/python3.1/subprocess.py", line 1337, in kill
     self.send_signal(signal.SIGKILL)
   File "/usr/pkg/lib/python3.1/subprocess.py", line 1327, in send_signal
     os.kill(self.pid, sig)
 OSError: [Errno 3] No such process
 [b10-msgq] Closing socket fd 4
 [b10-msgq] Receive error: EOF
 [b10-msgq] Closing socket fd 5
 [b10-msgq] Receive error: EOF

 }}}

 bind10 was dead. The only b10 process still running was msgq.

 This ticket is not about discussing why the configuration was unreadable
 but about how cfgmgr and bind10 should act if it is unreadable.

-- 
Ticket URL: <http://bind10.isc.org/ticket/627>
BIND 10 Development <http://bind10.isc.org>
BIND 10 Development