BIND 10 #2880: b10-stats timeout on cc session

[BIND 10 Development]

#2880: b10-stats timeout on cc session
-------------------------------------+-------------------------------------
                   Reporter:  shane  |                 Owner:
                       Type:         |                Status:  new
  defect                             |             Milestone:  New Tasks
                   Priority:         |              Keywords:
  medium                             |             Sensitive:  0
                  Component:         |           Sub-Project:  DNS
  Unclassified                       |  Estimated Difficulty:  0
               CVSS Scoring:         |           Total Hours:  0
            Defect Severity:  N/A    |
Feature Depending on Ticket:         |
        Add Hours to Ticket:  0      |
                  Internal?:  0      |
-------------------------------------+-------------------------------------
 I just checked the log on my server and see the following:

 {{{
 2013-03-17 20:56:27.858 INFO  [b10-xfrin.xfrin/25980]
 XFRIN_NOTIFY_UNKNOWN_MASTER got notification to retransfer zone time-
 travellers.nl.eu.org/IN from 192.16.192.99:53, expected
 [2001:610:719:1::5]:53
 2013-03-17 20:56:29.030 ERROR [b10-auth.cc/23060] CC_TIMEOUT timeout
 reading data from command channel
 2013-03-17 20:56:29.101 ERROR [b10-auth.auth/23060] AUTH_ZONEMGR_COMMS
 error communicating with zone manager: Timeout while reading data from cc
 session
 2013-03-17 20:56:29.113 ERROR [b10-auth.cc/23060] CC_TIMEOUT timeout
 reading data from command channel
 2013-03-17 20:56:29.149 ERROR [b10-auth.auth/23060] AUTH_ZONEMGR_COMMS
 error communicating with zone manager: Timeout while reading data from cc
 session
 Traceback (most recent call last):
   File "/opt/bind10/lib/python3.1/site-packages/isc/cc/session.py", line
 218, in _receive_full_buffer
     self._receive_len_data()
   File "/opt/bind10/lib/python3.1/site-packages/isc/cc/session.py", line
 178, in _receive_len_data
     new_data = self._receive_bytes(self._recv_len_size)
   File "/opt/bind10/lib/python3.1/site-packages/isc/cc/session.py", line
 164, 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 "/opt/bind10/libexec/bind10/b10-stats", line 707, in <module>
     stats.start()
   File "/opt/bind10/libexec/bind10/b10-stats", line 401, in start
     self.do_polling()
   File "/opt/bind10/libexec/bind10/b10-stats", line 271, in do_polling
     value = self.mccs.rpc_call('show_processes', 'Init')
   File "/opt/bind10/lib/python3.1/site-packages/isc/config/ccsession.py",
 line 533, in rpc_call
     reply, rheaders = self._session.group_recvmsg(nonblock=False, seq=seq)
   File "/opt/bind10/lib/python3.1/site-packages/isc/cc/session.py", line
 301, in group_recvmsg
     env, msg  = self.recvmsg(nonblock, seq)
   File "/opt/bind10/lib/python3.1/site-packages/isc/cc/session.py", line
 136, in recvmsg
     data = self._receive_full_buffer(nonblock)
   File "/opt/bind10/lib/python3.1/site-packages/isc/cc/session.py", line
 233, in _receive_full_buffer
     raise SessionTimeout("recv() on cc session timed out")
 isc.cc.session.SessionTimeout: recv() on cc session timed out
 2013-03-17 20:56:49.245 INFO  [b10-init.init/22470] BIND10_PROCESS_ENDED
 process 14657 of b10-stats ended with status 256
 2013-03-17 20:56:49.282 ERROR [b10-init.init/22470]
 BIND10_COMPONENT_FAILED component b10-stats (pid 14657) failed: process
 exited normally with exit status 256
 2013-03-17 20:56:49.297 INFO  [b10-init.init/22470] BIND10_COMPONENT_START
 component b10-stats is starting
 2013-03-17 20:56:49.301 INFO  [b10-init.init/22470]
 BIND10_STARTING_PROCESS starting process b10-stats
 2013-03-17 20:56:50.712 INFO  [b10-stats.stats/31674] STATS_STARTING
 starting
 }}}

 This same error also happened a few days earlier (2013-03-14
 19:41:39.126).

-- 
Ticket URL: <http://bind10.isc.org/ticket/2880>
BIND 10 Development <http://bind10.isc.org>
BIND 10 Development