コード例 #1
0
ファイル: test_stack_lock.py プロジェクト: AnyBucket/heat
    def test_failed_acquire_one_retry_only(self):
        self.m.StubOutWithMock(db_api, "stack_lock_create")
        db_api.stack_lock_create(
            self.stack.id, self.engine_id).AndReturn("fake-engine-id")

        self.m.StubOutWithMock(messaging.rpc.client._CallContext, "call")
        messaging.rpc.client._CallContext.call(
            self.context, "listening").AndRaise(messaging.MessagingTimeout)

        self.m.StubOutWithMock(db_api, "stack_lock_steal")
        db_api.stack_lock_steal(
            self.stack.id, "fake-engine-id", self.engine_id).AndReturn(True)

        db_api.stack_lock_create(
            self.stack.id, self.engine_id).AndReturn("fake-engine-id")

        messaging.rpc.client._CallContext.call(
            self.context, "listening").AndRaise(messaging.MessagingTimeout)

        db_api.stack_lock_steal(
            self.stack.id, "fake-engine-id", self.engine_id).AndReturn(True)

        self.m.ReplayAll()

        slock = stack_lock.StackLock(self.context, self.stack, self.engine_id)
        self.assertRaises(exception.ActionInProgress, slock.acquire)
        self.m.VerifyAll()
コード例 #2
0
    def test_failed_acquire_one_retry_only(self):
        self.m.StubOutWithMock(db_api, "stack_lock_create")
        db_api.stack_lock_create(self.stack.id, self.engine_id).\
            AndReturn("fake-engine-id")

        topic = self.stack.id
        self.m.StubOutWithMock(proxy.RpcProxy, "call")
        rpc = proxy.RpcProxy(topic, "1.0")
        rpc.call(self.context, rpc.make_msg("listening"), timeout=2,
                 topic="fake-engine-id").AndRaise(rpc_common.Timeout)

        self.m.StubOutWithMock(db_api, "stack_lock_steal")
        db_api.stack_lock_steal(self.stack.id, "fake-engine-id",
                                self.engine_id).\
            AndReturn(True)

        db_api.stack_lock_create(self.stack.id, self.engine_id).\
            AndReturn("fake-engine-id")

        topic = self.stack.id
        rpc = proxy.RpcProxy(topic, "1.0")
        rpc.call(self.context, rpc.make_msg("listening"), timeout=2,
                 topic="fake-engine-id").AndRaise(rpc_common.Timeout)

        db_api.stack_lock_steal(self.stack.id, "fake-engine-id",
                                self.engine_id).\
            AndReturn(True)

        self.m.ReplayAll()

        slock = stack_lock.StackLock(self.context, self.stack, self.engine_id)
        self.assertRaises(exception.ActionInProgress, slock.acquire)
        self.m.VerifyAll()
コード例 #3
0
ファイル: test_stack_lock.py プロジェクト: sirushtim/heat
    def test_successful_acquire_with_retry(self):
        self.m.StubOutWithMock(db_api, "stack_lock_create")
        db_api.stack_lock_create(self.stack.id,
                                 self.engine_id).AndReturn("fake-engine-id")

        self.m.StubOutWithMock(messaging.rpc.client._CallContext, "call")
        messaging.rpc.client._CallContext.call(
            self.context, "listening").AndRaise(messaging.MessagingTimeout)

        self.m.StubOutWithMock(db_api, "stack_lock_steal")
        db_api.stack_lock_steal(self.stack.id, "fake-engine-id",
                                self.engine_id).AndReturn(True)

        db_api.stack_lock_create(self.stack.id,
                                 self.engine_id).AndReturn("fake-engine-id")

        messaging.rpc.client._CallContext.call(
            self.context, "listening").AndRaise(messaging.MessagingTimeout)

        db_api.stack_lock_steal(self.stack.id, "fake-engine-id",
                                self.engine_id).AndReturn(None)

        self.m.ReplayAll()

        slock = stack_lock.StackLock(self.context, self.stack, self.engine_id)
        slock.acquire()
        self.m.VerifyAll()
コード例 #4
0
ファイル: test_stack_lock.py プロジェクト: AnyBucket/heat
    def test_successful_acquire_with_retry(self):
        self.m.StubOutWithMock(db_api, "stack_lock_create")
        db_api.stack_lock_create(
            self.stack.id, self.engine_id).AndReturn("fake-engine-id")

        self.m.StubOutWithMock(messaging.rpc.client._CallContext, "call")
        messaging.rpc.client._CallContext.call(
            self.context, "listening").AndRaise(messaging.MessagingTimeout)

        self.m.StubOutWithMock(db_api, "stack_lock_steal")
        db_api.stack_lock_steal(
            self.stack.id, "fake-engine-id", self.engine_id).AndReturn(True)

        db_api.stack_lock_create(
            self.stack.id, self.engine_id).AndReturn("fake-engine-id")

        messaging.rpc.client._CallContext.call(
            self.context, "listening").AndRaise(messaging.MessagingTimeout)

        db_api.stack_lock_steal(
            self.stack.id, "fake-engine-id", self.engine_id).AndReturn(None)

        self.m.ReplayAll()

        slock = stack_lock.StackLock(self.context, self.stack, self.engine_id)
        slock.acquire()
        self.m.VerifyAll()
コード例 #5
0
    def test_successful_acquire_with_retry(self):
        self.m.StubOutWithMock(db_api, "stack_lock_create")
        db_api.stack_lock_create(self.stack.id, self.engine_id).\
            AndReturn("fake-engine-id")

        topic = self.stack.id
        self.m.StubOutWithMock(proxy.RpcProxy, "call")
        rpc = proxy.RpcProxy(topic, "1.0")
        rpc.call(self.context, rpc.make_msg("listening"), timeout=2,
                 topic="fake-engine-id").AndRaise(rpc_common.Timeout)

        self.m.StubOutWithMock(db_api, "stack_lock_steal")
        db_api.stack_lock_steal(self.stack.id, "fake-engine-id",
                                self.engine_id).\
            AndReturn(True)

        db_api.stack_lock_create(self.stack.id, self.engine_id).\
            AndReturn("fake-engine-id")

        topic = self.stack.id
        rpc = proxy.RpcProxy(topic, "1.0")
        rpc.call(self.context, rpc.make_msg("listening"), timeout=2,
                 topic="fake-engine-id").AndRaise(rpc_common.Timeout)

        db_api.stack_lock_steal(self.stack.id, "fake-engine-id",
                                self.engine_id).\
            AndReturn(None)

        self.m.ReplayAll()

        slock = stack_lock.StackLock(self.context, self.stack, self.engine_id)
        slock.acquire()
        self.m.VerifyAll()
コード例 #6
0
    def test_failed_acquire_one_retry_only(self):
        self.m.StubOutWithMock(db_api, "stack_lock_create")
        db_api.stack_lock_create(self.stack.id, self.engine_id).\
            AndReturn("fake-engine-id")

        topic = self.stack.id
        self.m.StubOutWithMock(proxy.RpcProxy, "call")
        rpc = proxy.RpcProxy(topic, "1.0")
        rpc.call(self.context, rpc.make_msg("listening"), timeout=2,
                 topic="fake-engine-id").AndRaise(rpc_common.Timeout)

        self.m.StubOutWithMock(db_api, "stack_lock_steal")
        db_api.stack_lock_steal(self.stack.id, "fake-engine-id",
                                self.engine_id).\
            AndReturn(True)

        db_api.stack_lock_create(self.stack.id, self.engine_id).\
            AndReturn("fake-engine-id")

        topic = self.stack.id
        rpc = proxy.RpcProxy(topic, "1.0")
        rpc.call(self.context, rpc.make_msg("listening"), timeout=2,
                 topic="fake-engine-id").AndRaise(rpc_common.Timeout)

        db_api.stack_lock_steal(self.stack.id, "fake-engine-id",
                                self.engine_id).\
            AndReturn(True)

        self.m.ReplayAll()

        slock = stack_lock.StackLock(self.context, self.stack, self.engine_id)
        self.assertRaises(exception.ActionInProgress, slock.acquire)
        self.m.VerifyAll()
コード例 #7
0
ファイル: test_stack_lock.py プロジェクト: sirushtim/heat
    def test_failed_acquire_one_retry_only(self):
        self.m.StubOutWithMock(db_api, "stack_lock_create")
        db_api.stack_lock_create(self.stack.id,
                                 self.engine_id).AndReturn("fake-engine-id")

        self.m.StubOutWithMock(messaging.rpc.client._CallContext, "call")
        messaging.rpc.client._CallContext.call(
            self.context, "listening").AndRaise(messaging.MessagingTimeout)

        self.m.StubOutWithMock(db_api, "stack_lock_steal")
        db_api.stack_lock_steal(self.stack.id, "fake-engine-id",
                                self.engine_id).AndReturn(True)

        db_api.stack_lock_create(self.stack.id,
                                 self.engine_id).AndReturn("fake-engine-id")

        messaging.rpc.client._CallContext.call(
            self.context, "listening").AndRaise(messaging.MessagingTimeout)

        db_api.stack_lock_steal(self.stack.id, "fake-engine-id",
                                self.engine_id).AndReturn(True)

        self.m.ReplayAll()

        slock = stack_lock.StackLock(self.context, self.stack, self.engine_id)
        self.assertRaises(exception.ActionInProgress, slock.acquire)
        self.m.VerifyAll()
コード例 #8
0
    def test_successful_acquire_with_retry(self):
        self.m.StubOutWithMock(db_api, "stack_lock_create")
        db_api.stack_lock_create(self.stack.id, self.engine_id).\
            AndReturn("fake-engine-id")

        topic = self.stack.id
        self.m.StubOutWithMock(proxy.RpcProxy, "call")
        rpc = proxy.RpcProxy(topic, "1.0")
        rpc.call(self.context, rpc.make_msg("listening"), timeout=2,
                 topic="fake-engine-id").AndRaise(rpc_common.Timeout)

        self.m.StubOutWithMock(db_api, "stack_lock_steal")
        db_api.stack_lock_steal(self.stack.id, "fake-engine-id",
                                self.engine_id).\
            AndReturn(True)

        db_api.stack_lock_create(self.stack.id, self.engine_id).\
            AndReturn("fake-engine-id")

        topic = self.stack.id
        rpc = proxy.RpcProxy(topic, "1.0")
        rpc.call(self.context, rpc.make_msg("listening"), timeout=2,
                 topic="fake-engine-id").AndRaise(rpc_common.Timeout)

        db_api.stack_lock_steal(self.stack.id, "fake-engine-id",
                                self.engine_id).\
            AndReturn(None)

        self.m.ReplayAll()

        slock = stack_lock.StackLock(self.context, self.stack, self.engine_id)
        slock.acquire()
        self.m.VerifyAll()
コード例 #9
0
ファイル: test_stack_lock.py プロジェクト: whiteear/heat
    def test_successful_acquire_existing_lock_engine_dead(self):
        self.m.StubOutWithMock(db_api, "stack_lock_create")
        db_api.stack_lock_create(self.stack.id,
                                 self.engine_id).AndReturn("fake-engine-id")

        self.m.StubOutWithMock(db_api, "stack_lock_steal")
        db_api.stack_lock_steal(self.stack.id, "fake-engine-id",
                                self.engine_id).AndReturn(None)

        self.m.ReplayAll()

        slock = stack_lock.StackLock(self.context, self.stack, self.engine_id)
        self.patchobject(slock, 'engine_alive', return_value=False)
        slock.acquire()
        self.m.VerifyAll()
コード例 #10
0
    def test_successful_acquire_existing_lock_engine_dead(self):
        self.m.StubOutWithMock(db_api, "stack_lock_create")
        db_api.stack_lock_create(
            self.stack.id, self.engine_id).AndReturn("fake-engine-id")

        self.m.StubOutWithMock(db_api, "stack_lock_steal")
        db_api.stack_lock_steal(self.stack.id, "fake-engine-id",
                                self.engine_id).AndReturn(None)

        self.m.ReplayAll()

        slock = stack_lock.StackLock(self.context, self.stack, self.engine_id)
        self.patchobject(slock, 'engine_alive', return_value=False)
        slock.acquire()
        self.m.VerifyAll()
コード例 #11
0
ファイル: test_stack_lock.py プロジェクト: whiteear/heat
    def test_failed_acquire_existing_lock_engine_dead(self):
        self.m.StubOutWithMock(db_api, "stack_lock_create")
        db_api.stack_lock_create(self.stack.id,
                                 self.engine_id).AndReturn("fake-engine-id")

        self.m.StubOutWithMock(db_api, "stack_lock_steal")
        db_api.stack_lock_steal(self.stack.id, "fake-engine-id",
                                self.engine_id).AndReturn("fake-engine-id2")

        self.m.ReplayAll()

        slock = stack_lock.StackLock(self.context, self.stack, self.engine_id)
        self.patchobject(slock, 'engine_alive', return_value=False)
        self.assertRaises(exception.ActionInProgress, slock.acquire)
        self.m.VerifyAll()
コード例 #12
0
ファイル: test_stack_lock.py プロジェクト: alexguev/heat
 def test_successful_acquire_steal_lock_updated(self):
     existing_lock = self.m.CreateMockAnything()
     existing_lock.updated_at = datetime.datetime(2012, 10, 16, 18, 35, 18)
     current_time = datetime.datetime(2012, 10, 16, 18, 36, 29)
     self.m.StubOutWithMock(db_api, "current_timestamp")
     db_api.current_timestamp().AndReturn(current_time)
     self.m.StubOutWithMock(db_api, "stack_lock_get")
     db_api.stack_lock_get(mox.IgnoreArg(), mox.IgnoreArg())\
           .AndReturn(existing_lock)
     self.m.StubOutWithMock(db_api, "stack_lock_steal")
     db_api.stack_lock_steal(mox.IgnoreArg(), mox.IgnoreArg(),
                             mox.IgnoreArg()).AndReturn(None)
     self.m.ReplayAll()
     slock = stack_lock.StackLock(self.context, self.stack)
     slock.acquire()
     self.m.VerifyAll()
コード例 #13
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    def test_failed_acquire_existing_lock_engine_dead(self):
        self.m.StubOutWithMock(db_api, "stack_lock_create")
        db_api.stack_lock_create(
            self.stack.id, self.engine_id).AndReturn("fake-engine-id")

        self.m.StubOutWithMock(db_api, "stack_lock_steal")
        db_api.stack_lock_steal(
            self.stack.id, "fake-engine-id",
            self.engine_id).AndReturn("fake-engine-id2")

        self.m.ReplayAll()

        slock = stack_lock.StackLock(self.context, self.stack, self.engine_id)
        self.patchobject(slock, 'engine_alive', return_value=False)
        self.assertRaises(exception.ActionInProgress, slock.acquire)
        self.m.VerifyAll()
コード例 #14
0
ファイル: test_stack_lock.py プロジェクト: NeCTAR-RC/heat
    def test_failed_acquire_existing_lock_engine_dead(self):
        self.m.StubOutWithMock(db_api, "stack_lock_create")
        db_api.stack_lock_create(self.stack.id, stack_lock.engine_id).\
            AndReturn("fake-engine-id")

        topic = self.stack.id
        self.m.StubOutWithMock(proxy.RpcProxy, "call")
        rpc = proxy.RpcProxy(topic, "1.0")
        rpc.call(self.context, rpc.make_msg("listening"), timeout=2,
                 topic="fake-engine-id").AndRaise(rpc_common.Timeout)

        self.m.StubOutWithMock(db_api, "stack_lock_steal")
        db_api.stack_lock_steal(self.stack.id, "fake-engine-id",
                                stack_lock.engine_id).\
            AndReturn("fake-engine-id2")

        self.m.ReplayAll()

        slock = stack_lock.StackLock(self.context, self.stack)
        self.assertRaises(rpc_common.ClientException, slock.acquire)
        self.m.VerifyAll()
コード例 #15
0
ファイル: stack_lock.py プロジェクト: AnyBucket/heat
    def acquire(self, retry=True):
        """
        Acquire a lock on the stack.

        :param retry: When True, retry if lock was released while stealing.
        :type retry: boolean
        """
        lock_engine_id = db_api.stack_lock_create(self.stack.id,
                                                  self.engine_id)
        if lock_engine_id is None:
            LOG.debug("Engine %(engine)s acquired lock on stack "
                      "%(stack)s" % {'engine': self.engine_id,
                                     'stack': self.stack.id})
            return

        if lock_engine_id == self.engine_id or \
           self.engine_alive(self.context, lock_engine_id):
            LOG.debug("Lock on stack %(stack)s is owned by engine "
                      "%(engine)s" % {'stack': self.stack.id,
                                      'engine': lock_engine_id})
            raise exception.ActionInProgress(stack_name=self.stack.name,
                                             action=self.stack.action)
        else:
            LOG.info(_("Stale lock detected on stack %(stack)s.  Engine "
                       "%(engine)s will attempt to steal the lock")
                     % {'stack': self.stack.id, 'engine': self.engine_id})

            result = db_api.stack_lock_steal(self.stack.id, lock_engine_id,
                                             self.engine_id)

            if result is None:
                LOG.info(_("Engine %(engine)s successfully stole the lock "
                           "on stack %(stack)s")
                         % {'engine': self.engine_id,
                            'stack': self.stack.id})
                return
            elif result is True:
                if retry:
                    LOG.info(_("The lock on stack %(stack)s was released "
                               "while engine %(engine)s was stealing it. "
                               "Trying again") % {'stack': self.stack.id,
                                                  'engine': self.engine_id})
                    return self.acquire(retry=False)
            else:
                new_lock_engine_id = result
                LOG.info(_("Failed to steal lock on stack %(stack)s. "
                           "Engine %(engine)s stole the lock first")
                         % {'stack': self.stack.id,
                            'engine': new_lock_engine_id})

            raise exception.ActionInProgress(
                stack_name=self.stack.name, action=self.stack.action)
コード例 #16
0
ファイル: stack_lock.py プロジェクト: stavxyz/heat
    def acquire(self, retry=True):
        """
        Acquire a lock on the stack.

        :param retry: When True, retry if lock was released while stealing.
        :type retry: boolean
        """
        lock_engine_id = db_api.stack_lock_create(self.stack.id,
                                                  self.engine_id)
        if lock_engine_id is None:
            logger.debug(_("Engine %(engine)s acquired lock on stack "
                           "%(stack)s") % {'engine': self.engine_id,
                                           'stack': self.stack.id})
            return

        if lock_engine_id == self.engine_id or \
           self.engine_alive(self.context, lock_engine_id):
            logger.debug(_("Lock on stack %(stack)s is owned by engine "
                           "%(engine)s") % {'stack': self.stack.id,
                                            'engine': lock_engine_id})
            raise exception.ActionInProgress(stack_name=self.stack.name,
                                             action=self.stack.action)
        else:
            logger.info(_("Stale lock detected on stack %(stack)s.  Engine "
                          "%(engine)s will attempt to steal the lock")
                        % {'stack': self.stack.id, 'engine': self.engine_id})

            result = db_api.stack_lock_steal(self.stack.id, lock_engine_id,
                                             self.engine_id)

            if result is None:
                logger.info(_("Engine %(engine)s successfully stole the lock "
                              "on stack %(stack)s")
                            % {'engine': self.engine_id,
                               'stack': self.stack.id})
                return
            elif result is True:
                if retry:
                    logger.info(_("The lock on stack %(stack)s was released "
                                  "while engine %(engine)s was stealing it. "
                                  "Trying again") % {'stack': self.stack.id,
                                                     'engine': self.engine_id})
                    return self.acquire(retry=False)
            else:
                new_lock_engine_id = result
                logger.info(_("Failed to steal lock on stack %(stack)s. "
                              "Engine %(engine)s stole the lock first")
                            % {'stack': self.stack.id,
                               'engine': new_lock_engine_id})

            raise exception.ActionInProgress(
                stack_name=self.stack.name, action=self.stack.action)
コード例 #17
0
 def steal(cls, stack_id, old_engine_id, new_engine_id):
     return db_api.stack_lock_steal(stack_id, old_engine_id, new_engine_id)
コード例 #18
0
ファイル: stack_lock.py プロジェクト: ISCAS-VDI/heat-base
 def steal(cls, stack_id, old_engine_id, new_engine_id):
     return db_api.stack_lock_steal(stack_id,
                                    old_engine_id,
                                    new_engine_id)