[1342] Remove the --brittle switch

src/bin/bind10/bind10.xml

@@ -51,7 +51,6 @@
       <arg><option>-u <replaceable>user</replaceable></option></arg>
       <arg><option>-v</option></arg>
       <arg><option>-w <replaceable>wait_time</replaceable></option></arg>
-      <arg><option>--brittle</option></arg>
       <arg><option>--cmdctl-port</option> <replaceable>port</replaceable></arg>
       <arg><option>--config-file</option> <replaceable>config-filename</replaceable></arg>
       <arg><option>--data-path</option> <replaceable>directory</replaceable></arg>
@@ -90,20 +89,6 @@
 
     <variablelist>
 
-      <varlistentry>
-        <term>
-          <option>--brittle</option>
-        </term>
-        <listitem>
-          <para>
-	    Shutdown if any of the child processes of
-	    <command>bind10</command> exit.  This is intended to
-	    help developers debug the server, and should not be
-	    used in production.
-          </para>
-        </listitem>
-      </varlistentry>
-
       <varlistentry>
         <term>
           <option>-c</option> <replaceable>config-filename</replaceable>,

src/bin/bind10/bind10_src.py.in

@@ -219,7 +219,7 @@ class BoB:
     
     def __init__(self, msgq_socket_file=None, data_path=None,
     config_filename=None, nocache=False, verbose=False, setuid=None,
-    username=None, cmdctl_port=None, brittle=False, wait_time=10):
+    username=None, cmdctl_port=None, wait_time=10):
         """
             Initialize the Boss of BIND. This is a singleton (only one can run).
         
@@ -233,9 +233,6 @@ class BoB:
             The cmdctl_port is passed to cmdctl and specify on which port it
             should listen.
 
-            brittle is a debug option that controls whether the Boss shuts down
-            after any process dies.
-
             wait_time controls the amount of time (in seconds) that Boss waits
             for selected processes to initialize before continuing with the
             initialization.  Currently this is only the configuration manager.
@@ -264,7 +261,6 @@ class BoB:
         self.data_path = data_path
         self.config_filename = config_filename
         self.cmdctl_port = cmdctl_port
-        self.brittle = brittle
         self.wait_time = wait_time
         self._component_configurator = isc.bind10.component.Configurator(self,
             isc.bind10.special_component.get_specials())
@@ -940,8 +936,6 @@ def parse_args(args=sys.argv[1:], Parser=OptionParser):
     parser.add_option("--pid-file", dest="pid_file", type="string",
                       default=None,
                       help="file to dump the PID of the BIND 10 process")
-    parser.add_option("--brittle", dest="brittle", action="store_true",
-                      help="debugging flag: exit if any component dies")
     parser.add_option("-w", "--wait", dest="wait_time", type="int",
                       default=10, help="Time (in seconds) to wait for config manager to start up")
 
@@ -1046,7 +1040,7 @@ def main():
     # Go bob!
     boss_of_bind = BoB(options.msgq_socket_file, options.data_path,
                        options.config_file, options.nocache, options.verbose,
-                       setuid, username, options.cmdctl_port, options.brittle,
+                       setuid, username, options.cmdctl_port,
                        options.wait_time)
     startup_result = boss_of_bind.startup()
     if startup_result:

src/bin/bind10/tests/bind10_test.py.in

@@ -740,15 +740,6 @@ class TestParseArgs(unittest.TestCase):
         options = parse_args(['--cmdctl-port=1234'], TestOptParser)
         self.assertEqual(1234, options.cmdctl_port)
 
-    def test_brittle(self):
-        """
-        Test we can use the "brittle" flag.
-        """
-        options = parse_args([], TestOptParser)
-        self.assertFalse(options.brittle)
-        options = parse_args(['--brittle'], TestOptParser)
-        self.assertTrue(options.brittle)
-
 class TestPIDFile(unittest.TestCase):
     def setUp(self):
         self.pid_file = '@builddir@' + os.sep + 'bind10.pid'
@@ -796,37 +787,6 @@ class TestPIDFile(unittest.TestCase):
         self.assertRaises(IOError, dump_pid,
                           'nonexistent_dir' + os.sep + 'bind10.pid')
 
-# TODO: Do we want brittle mode? Probably yes. So we need to re-enable to after that.
-@unittest.skip("Brittle mode temporarily broken")
-class TestBrittle(unittest.TestCase):
-    def test_brittle_disabled(self):
-        bob = MockBob()
-        bob.start_all_components()
-        bob.runnable = True
-
-        bob.reap_children()
-        self.assertTrue(bob.runnable)
-
-    def simulated_exit(self):
-        ret_val = self.exit_info
-        self.exit_info = (0, 0)
-        return ret_val
-
-    def test_brittle_enabled(self):
-        bob = MockBob()
-        bob.start_all_components()
-        bob.runnable = True
-
-        bob.brittle = True
-        self.exit_info = (5, 0)
-        bob._get_process_exit_status = self.simulated_exit
-
-        old_stdout = sys.stdout
-        sys.stdout = open("/dev/null", "w")
-        bob.reap_children()
-        sys.stdout = old_stdout
-        self.assertFalse(bob.runnable)
-
 class TestBossComponents(unittest.TestCase):
     """
     Test the boss propagates component configuration properly to the