BIND 10 #1848: msgq disappeared causes great shutdown confusion

[BIND 10 Development]

#1848: msgq disappeared causes great shutdown confusion
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            Reporter:  jreed         |                        Owner:
                Type:  defect        |                       Status:  new
            Priority:  medium        |                    Milestone:
           Component:  Unclassified  |                   Resolution:
            Keywords:                |                 CVSS Scoring:
           Sensitive:  0             |              Defect Severity:  N/A
         Sub-Project:  DNS           |  Feature Depending on Ticket:
Estimated Difficulty:  4             |          Add Hours to Ticket:  0
         Total Hours:  0             |                    Internal?:  0
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Comment (by jreed):

 On another system I saw when I did a shutdown:

 {{{
 2012-12-19 19:36:24.724 DEBUG [b10-stats-httpd.stats-httpd/34024]
 STATHTTPD_RECEIVED_SHUTDOWN_COMMAND shutdown command received
 2012-12-19 19:36:24.724 INFO  [b10-stats-httpd.stats-httpd/34024]
 STATHTTPD_SHUTDOWN shutting down
 2012-12-19 19:36:24.724 INFO  [b10-stats-httpd.stats-httpd/34024]
 STATHTTPD_CLOSING closing 0.0.0.0#8000
 2012-12-19 19:36:24.725 DEBUG [b10-stats-httpd.stats-httpd/34024]
 STATHTTPD_CLOSING_CC_SESSION stopping cc session
 2012-12-19 19:36:24.749 DEBUG [b10-zonemgr.zonemgr/34021] ZONEMGR_SHUTDOWN
 zone manager has shut down
 2012-12-19 19:36:24.762 ERROR [b10-xfrin.xfrin/34018] XFRIN_UNKNOWN_ERROR
 unknown error: Read of 0 bytes: connection closed
 2012-12-19 19:36:24.763 ERROR [b10-xfrin.config/34018]
 CONFIG_SESSION_STOPPING_FAILED error sending stopping message: [Errno 32]
 Broken pipe
 2012-12-19 19:36:24.784 ERROR [b10-resolver.cc/34023] CC_ASYNC_READ_FAILED
 asynchronous read failed (error code = 2)
 2012-12-19 19:36:24.785 DEBUG [b10-resolver.cache/34023]
 CACHE_MESSAGES_DEINIT deinitialized message cache
 2012-12-19 19:36:24.786 FATAL [b10-resolver.resolver/34023]
 RESOLVER_FAILED resolver failed, reason: asynchronous read failed
 2012-12-19 19:36:24.787 FATAL [b10-resolver.cc/34023] CC_WRITE_ERROR error
 writing data to command channel (Broken pipe)
 2012-12-19 19:36:24.787 ERROR [b10-resolver.config/34023]
 CONFIG_CCSESSION_STOPPING error sending stopping message: ASIO write
 failed: Broken pipe
 2012-12-19 19:36:24.787 INFO  [b10-resolver.resolver/34023]
 RESOLVER_SHUTDOWN resolver shutdown complete
 2012-12-19 19:36:24.794 DEBUG [b10-auth.auth/34017]
 AUTH_DATASRC_CLIENTS_BUILDER_COMMAND data source builder received command:
 SHUTDOWN
 2012-12-19 19:36:24.794 INFO  [b10-auth.auth/34017]
 AUTH_DATASRC_CLIENTS_BUILDER_STOPPED data source builder thread stopped
 2012-12-19 19:36:24.795 DEBUG [b10-auth.datasrc/34017] DATASRC_MEM_DESTROY
 destroying zone 'BIND.' in 'CH' class
 2012-12-19 19:36:24.795 DEBUG [b10-auth.datasrc/34017]
 DATASRC_SQLITE_DROPCONN SQLite3Database is being deinitialized
 }}}

 Notice above the few ERRORs and couple FATALs.

 There was also output to console I collected but I don't have any
 timestamp when it happened so not sure if was related.

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Ticket URL: <http://bind10.isc.org/ticket/1848#comment:4>
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