BIND 10 #2696: dhcp4 component shutdown issues

[BIND 10 Development]

#2696: dhcp4 component shutdown issues
-------------------------------------+-------------------------------------
                   Reporter:  jreed  |                 Owner:
                       Type:         |                Status:  new
  defect                             |             Milestone:  New Tasks
                   Priority:         |              Keywords:
  medium                             |             Sensitive:  0
                  Component:         |           Sub-Project:  Core
  Unclassified                       |  Estimated Difficulty:  0
               CVSS Scoring:         |           Total Hours:  0
            Defect Severity:  N/A    |
Feature Depending on Ticket:         |
        Add Hours to Ticket:  0      |
                  Internal?:  0      |
-------------------------------------+-------------------------------------
 In bindctl:
 {{{
 > config remove Boss/components b10-dhcp4
 > config commit
 Error: [Errno 32] Broken pipe
 Configuration not committed
 }}}
 It appears the configuration was removed as viewable by bindctl. The
 process was not stopped. I manually killed it (and it was not restarted).

 Soon later I upgraded and restart bind10 (now using b10-init). But the
 component configuration for b10-dhcp4 still existed so I tried to stop by
 removing the component.

 {{{
 2013-02-06 13:54:07.487 DEBUG [b10-init.init/18558]
 BIND10_CONFIGURATOR_TASK performing task stop on b10-dhcp4
 2013-02-06 13:54:07.488 INFO  [b10-init.init/18558] BIND10_COMPONENT_STOP
 component b10-dhcp4 is being stopped
 2013-02-06 13:54:07.488 INFO  [b10-init.init/18558] BIND10_STOP_PROCESS
 asking b10-dhcp4 to shut down
 }}}

 But no log message from b10-dhcp4 (no DHCP4_SHUTDOWN_REQUEST and no
 DHCP4_SHUTDOWN) and the b10-dhcp4 process was still running.

 I did a "Dhcp4 shutdown" and that worked.

 To retest, I re-added the component and it started. Then I tried to stop:

 {{{
 > config remove Init/components b10-dhcp4
 > config commit
 Error: [Errno 32] Broken pipe
 Configuration not committed
 }}}

 b10-dhcp4 was still running.
 I did a Dhcp4 shutdown and that worked.

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Ticket URL: <http://bind10.isc.org/ticket/2696>
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BIND 10 Development