BIND 10 #1729: cc session timeout causes noisy traceback from b10-stats-httpd

[BIND 10 Development]

#1729: cc session timeout causes noisy traceback from b10-stats-httpd
-------------------------------------+-------------------------------------
            Reporter:  jreed         |                        Owner:
                Type:  defect        |                       Status:  new
            Priority:  major         |                    Milestone:  New
           Component:  statistics    |  Tasks
           Sensitive:  0             |                     Keywords:
         Sub-Project:  Core          |              Defect Severity:  N/A
Estimated Difficulty:  0             |  Feature Depending on Ticket:
         Total Hours:  0             |          Add Hours to Ticket:  0
                                     |                    Internal?:  0
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 {{{
 Traceback (most recent call last):
   File "/home/jreed/src/bind10/src/lib/python/isc/cc/session.py", line
 203, in _receive_full_buffer
     self._receive_len_data()
   File "/home/jreed/src/bind10/src/lib/python/isc/cc/session.py", line
 163, in _receive_len_data
     new_data = self._receive_bytes(self._recv_len_size)
   File "/home/jreed/src/bind10/src/lib/python/isc/cc/session.py", line
 149, 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/jreed/src/bind10/src/bin/stats/b10-stats-httpd", line 827,
 in <module>
     stats_httpd = StatsHttpd()
   File "/home/jreed/src/bind10/src/bin/stats/b10-stats-httpd", line 187,
 in __in it__
     self.open_mccs()
   File "/home/jreed/src/bind10/src/bin/stats/b10-stats-httpd", line 199,
 in open_mccs
     SPECFILE_LOCATION, self.config_handler, self.command_handler)
   File "/home/jreed/src/bind10/src/lib/python/isc/config/ccsession.py",
 line 186, in __init__
     self._session = Session(socket_file)
   File "/home/jreed/src/bind10/src/lib/python/isc/cc/session.py", line 57,
 in __init__
     env, msg = self.recvmsg(False)
   File "/home/jreed/src/bind10/src/lib/python/isc/cc/session.py", line
 121, in recvmsg
     data = self._receive_full_buffer(nonblock)
   File "/home/jreed/src/bind10/src/lib/python/isc/cc/session.py", line
 218, in _receive_full_buffer
     raise SessionTimeout("recv() on cc session timed out")
 isc.cc.session.SessionTimeout: recv() on cc session timed out
 Exception AttributeError: "'ModuleCCSession' object has no attribute
 '_session'" in <bound method ModuleCCSession.__del__ of
 <isc.config.ccsession.ModuleCCSession object at 0x2032a3cd0>> ignored
 2012-02-29 15:27:37.994 INFO  [b10-boss.boss] BIND10_PROCESS_ENDED process
 13233 of b10-stats-httpd ended with status 256
 }}}

 This is due to same problem as #1726.

 But I open a new ticket since I think its failure should be friendlier,
 such as:

 {{{
 2012-02-29 15:27:46.824 ERROR [b10-xfrin.xfrin] XFRIN_UNKNOWN_ERROR
 unknown error: recv() on cc session timed out
 }}}

 or

 {{{
 2012-02-29 15:27:46.854 ERROR [b10-zonemgr.zonemgr]
 ZONEMGR_SESSION_TIMEOUT timeout on session to command channel daemon
 }}}

 By the way, those two examples maybe should use identical format for same
 error?

 So original problem to be fixed in #1726. Make the output clean in this
 ticket.

-- 
Ticket URL: <http://bind10.isc.org/ticket/1729>
BIND 10 Development <http://bind10.isc.org>
BIND 10 Development