def __init__(
self,
data: ConsensusSharedData,
bus: InternalBus,
network: ExternalBus,
stasher: StashingRouter,
db_manager: DatabaseManager,
metrics: MetricsCollector = NullMetricsCollector(),
):
self._data = data
self._bus = bus
self._network = network
self._stasher = stasher
self._subscription = Subscription()
self._validator = CheckpointMsgValidator(self._data)
self._db_manager = db_manager
self.metrics = metrics
# Received checkpoints, mapping CheckpointKey -> List(node_alias)
self._received_checkpoints = defaultdict(
set) # type: Dict[CheckpointService.CheckpointKey, Set[str]]
self._config = getConfig()
self._logger = getlogger()
self._subscription.subscribe(stasher, Checkpoint,
self.process_checkpoint)
self._subscription.subscribe(bus, Ordered, self.process_ordered)
self._subscription.subscribe(bus, BackupSetupLastOrdered,
self.process_backup_setup_last_ordered)
self._subscription.subscribe(bus, NewViewAccepted,
self.process_new_view_accepted)
def __init__(self,
data: ConsensusSharedData,
timer: TimerService,
bus: InternalBus,
network: ExternalBus,
db_manager: DatabaseManager,
stasher: StashingRouter,
is_master_degraded: Callable[[], bool],
metrics: MetricsCollector = NullMetricsCollector()):
self._data = data
self._timer = timer
self._bus = bus
self._network = network
self._stasher = stasher
self._is_master_degraded = is_master_degraded
self.metrics = metrics
self._config = getConfig()
self._instance_changes = \
InstanceChangeProvider(outdated_ic_interval=self._config.OUTDATED_INSTANCE_CHANGES_CHECK_INTERVAL,
node_status_db=db_manager.get_store(NODE_STATUS_DB_LABEL),
time_provider=timer.get_current_time)
self._subscription = Subscription()
self._subscription.subscribe(bus, VoteForViewChange, self.process_vote_for_view_change)
self._subscription.subscribe(bus, NewViewAccepted, self.process_new_view_accepted)
self._subscription.subscribe(stasher, InstanceChange, self.process_instance_change)
def __init__(self,
data: ConsensusSharedData,
bus: InternalBus,
network: ExternalBus,
metrics=NullMetricsCollector()):
self._logger = getlogger()
self._data = data
self._bus = bus
self._subscription = Subscription()
self._subscription.subscribe(bus, MissingMessage,
self.process_missing_message)
self._subscription.subscribe(bus, Ordered, self.process_ordered)
self._subscription.subscribe(bus, ViewChangeStarted,
self.process_view_change_started)
self._subscription.subscribe(bus, CheckpointStabilized,
self.process_checkpoint_stabilized)
self._network = network
self._subscription.subscribe(network, MessageReq,
self.process_message_req)
self._subscription.subscribe(network, MessageRep,
self.process_message_rep)
self.metrics = metrics
self.handlers = {
PREPREPARE: PreprepareHandler(self._data),
PREPARE: PrepareHandler(self._data),
COMMIT: CommitHandler(self._data),
VIEW_CHANGE: ViewChangeHandler(self._data)
}
self.three_pc_handlers = {PREPREPARE, PREPARE, COMMIT}
def __init__(self, data: ConsensusSharedData, timer: TimerService, bus: InternalBus, network: ExternalBus,
stasher: StashingRouter):
self._config = getConfig()
self._logger = getlogger()
self._data = data
self._new_view_builder = NewViewBuilder(self._data)
self._timer = timer
self._bus = bus
self._network = network
self._router = stasher
self._new_view = None # type: Optional[NewView]
self._resend_inst_change_timer = RepeatingTimer(self._timer,
self._config.NEW_VIEW_TIMEOUT,
partial(self._propose_view_change,
Suspicions.INSTANCE_CHANGE_TIMEOUT.code),
active=False)
self._router.subscribe(ViewChange, self.process_view_change_message)
self._router.subscribe(ViewChangeAck, self.process_view_change_ack_message)
self._router.subscribe(NewView, self.process_new_view_message)
self._old_prepared = {} # type: Dict[int, BatchID]
self._old_preprepared = {} # type: Dict[int, List[BatchID]]
self._primaries_selector = RoundRobinPrimariesSelector()
self._subscription = Subscription()
self._subscription.subscribe(self._bus, NeedViewChange, self.process_need_view_change)
def __init__(self, data: ConsensusSharedData, timer: TimerService,
bus: InternalBus, network: ExternalBus,
stasher: StashingRouter):
self._config = getConfig()
self._logger = getlogger()
self._data = data
self._new_view_builder = NewViewBuilder(self._data)
self._timer = timer
self._bus = bus
self._network = network
self._router = stasher
self._votes = ViewChangeVotesForView(self._data.quorums)
self._new_view = None # type: Optional[NewView]
self._router.subscribe(ViewChange, self.process_view_change_message)
self._router.subscribe(ViewChangeAck,
self.process_view_change_ack_message)
self._router.subscribe(NewView, self.process_new_view_message)
self._old_prepared = {} # type: Dict[int, BatchID]
self._old_preprepared = {} # type: Dict[int, List[BatchID]]
self._primaries_selector = RoundRobinPrimariesSelector()
self._subscription = Subscription()
self._subscription.subscribe(self._bus, NeedViewChange,
self.process_need_view_change)
def __init__(self,
data: ConsensusSharedData,
timer: TimerService,
bus: InternalBus,
network: ExternalBus,
metrics: MetricsCollector = NullMetricsCollector()):
self._data = data
self._timer = timer
self._bus = bus
self._network = network
self.metrics = metrics
self._config = getConfig()
self._primary_disconnection_time = timer.get_current_time() # type: Optional[float]
self._propose_view_change_timer = RepeatingTimer(timer=timer,
interval=self._config.NEW_VIEW_TIMEOUT,
callback=self._propose_view_change_if_needed,
active=False)
self._subscription = Subscription()
self._subscription.subscribe(network, ExternalBus.Connected, self.process_connected)
self._subscription.subscribe(network, ExternalBus.Disconnected, self.process_disconnected)
self._subscription.subscribe(bus, PrimarySelected, self.process_primary_selected)
self._subscription.subscribe(bus, NodeStatusUpdated, self.process_node_status_updated)
if self._data.is_master:
self._schedule_primary_connection_check(delay=self._config.INITIAL_PROPOSE_VIEW_CHANGE_TIMEOUT)
def __init__(self, data: ConsensusSharedData, timer: TimerService, bus: InternalBus, network: ExternalBus,
stasher: StashingRouter, primaries_selector: PrimariesSelector):
self._config = getConfig()
self._data = data
self._new_view_builder = NewViewBuilder(self._data)
self._timer = timer
self._bus = bus
self._network = network
self._router = stasher
# Last successful viewNo.
# In some cases view_change process can be uncompleted in time.
# In that case we want to know, which viewNo was successful (last completed view_change)
self.last_completed_view_no = self._data.view_no
self._resend_inst_change_timer = RepeatingTimer(self._timer,
self._config.NEW_VIEW_TIMEOUT,
self._propose_view_change_not_complete_in_time,
active=False)
self._old_prepared = {} # type: Dict[int, BatchID]
self._old_preprepared = {} # type: Dict[int, List[BatchID]]
self._stashed_vc_msgs = {} # type: Dict[int, int]
self._primaries_selector = primaries_selector
self._subscription = Subscription()
self._subscription.subscribe(self._router, ViewChange, self.process_view_change_message)
self._subscription.subscribe(self._router, ViewChangeAck, self.process_view_change_ack_message)
self._subscription.subscribe(self._router, NewView, self.process_new_view_message)
self._subscription.subscribe(self._bus, NeedViewChange, self.process_need_view_change)
def __init__(self, limit: int, buses: List[Router], unstash_handler: Callable = None):
super().__init__()
self._limit = limit
self._logger = getlogger()
self._queues = {} # type: Dict[int, StashingQueue]
# TODO: This call has been added to saving the old message order in the list.
# This is a replica's method that moves the message to the inBox, rather than
# calling the handler immediately, as the default router does.
self._unstash_handler = unstash_handler
self._subscriptions = Subscription()
self._buses = buses
def __init__(
self,
data: ConsensusSharedData,
bus: InternalBus,
network: ExternalBus,
stasher: StashingRouter,
db_manager: DatabaseManager,
metrics: MetricsCollector = NullMetricsCollector(),
):
self._data = data
self._bus = bus
self._network = network
self._checkpoint_state = SortedDict(lambda k: k[1])
self._stasher = stasher
self._subscription = Subscription()
self._validator = CheckpointMsgValidator(self._data)
self._db_manager = db_manager
self.metrics = metrics
# Stashed checkpoints for each view. The key of the outermost
# dictionary is the view_no, value being a dictionary with key as the
# range of the checkpoint and its value again being a mapping between
# senders and their sent checkpoint
# Dict[view_no, Dict[(seqNoStart, seqNoEnd), Dict[sender, Checkpoint]]]
self._stashed_recvd_checkpoints = {}
self._config = getConfig()
self._logger = getlogger()
self._subscription.subscribe(stasher, Checkpoint,
self.process_checkpoint)
self._subscription.subscribe(bus, Ordered, self.process_ordered)
self._subscription.subscribe(bus, BackupSetupLastOrdered,
self.process_backup_setup_last_ordered)
self._subscription.subscribe(bus, NewViewAccepted,
self.process_new_view_accepted)
def __init__(self,
node: 'plenum.server.node.Node',
instId: int,
config=None,
isMaster: bool = False,
bls_bft_replica: BlsBftReplica = None,
metrics: MetricsCollector = NullMetricsCollector(),
get_current_time=None,
get_time_for_3pc_batch=None):
"""
Create a new replica.
:param node: Node on which this replica is located
:param instId: the id of the protocol instance the replica belongs to
:param isMaster: is this a replica of the master protocol instance
"""
HasActionQueue.__init__(self)
self.get_current_time = get_current_time or time.perf_counter
self.get_time_for_3pc_batch = get_time_for_3pc_batch or node.utc_epoch
# self.stats = Stats(TPCStat)
self.config = config or getConfig()
self.metrics = metrics
self.node = node
self.instId = instId
self.name = self.generateName(node.name, self.instId)
self.logger = getlogger(self.name)
self.validator = ReplicaValidator(self)
self.outBox = deque()
"""
This queue is used by the replica to send messages to its node. Replica
puts messages that are consumed by its node
"""
self.inBox = deque()
"""
This queue is used by the replica to receive messages from its node.
Node puts messages that are consumed by the replica
"""
self.inBoxStash = deque()
"""
If messages need to go back on the queue, they go here temporarily and
are put back on the queue on a state change
"""
self._is_master = isMaster
# Dictionary to keep track of the which replica was primary during each
# view. Key is the view no and value is the name of the primary
# replica during that view
self.primaryNames = OrderedDict() # type: OrderedDict[int, str]
# Flag being used for preterm exit from the loop in the method
# `processStashedMsgsForNewWaterMarks`. See that method for details.
self.consumedAllStashedMsgs = True
self._freshness_checker = FreshnessChecker(
freshness_timeout=self.config.STATE_FRESHNESS_UPDATE_INTERVAL)
self._bls_bft_replica = bls_bft_replica
self._state_root_serializer = state_roots_serializer
# Did we log a message about getting request while absence of primary
self.warned_no_primary = False
self._consensus_data = ConsensusSharedData(
self.name, self.node.poolManager.node_names_ordered_by_rank(),
self.instId, self.isMaster)
self._internal_bus = InternalBus()
self._external_bus = ExternalBus(send_handler=self.send)
self.stasher = self._init_replica_stasher()
self._subscription = Subscription()
self._bootstrap_consensus_data()
self._subscribe_to_external_msgs()
self._subscribe_to_internal_msgs()
self._checkpointer = self._init_checkpoint_service()
self._ordering_service = self._init_ordering_service()
self._message_req_service = self._init_message_req_service()
self._view_change_service = self._init_view_change_service()
for ledger_id in self.ledger_ids:
self.register_ledger(ledger_id)