def fake_view_changer(request, tconf):
node_count = 4
node_stack = FakeSomething(name="fake stack",
connecteds={"Alpha", "Beta", "Gamma", "Delta"},
conns={"Alpha", "Beta", "Gamma", "Delta"})
monitor = FakeSomething(isMasterDegraded=lambda: False,
areBackupsDegraded=lambda: [],
prettymetrics='')
node = FakeSomething(name="SomeNode",
viewNo=request.param,
quorums=Quorums(
getValueFromModule(request,
'nodeCount',
default=node_count)),
nodestack=node_stack,
utc_epoch=lambda *args: get_utc_epoch(),
config=tconf,
monitor=monitor,
discard=lambda a, b, c: print(b),
primaries_disconnection_times=[None] *
getRequiredInstances(node_count),
master_primary_name='Alpha',
master_replica=FakeSomething(instId=0))
view_changer = ViewChanger(node)
return view_changer
def view_changer(tconf):
node = FakeSomething(
config=tconf,
master_replica=FakeSomething(
inBox=deque(),
inBoxRouter=Router(),
logger=FakeSomething(info=lambda *args, **kwargs: True)),
name="Alpha",
master_primary_name="Alpha",
on_view_change_start=lambda *args, **kwargs: True,
start_catchup=lambda *args, **kwargs: True,
nodeInBox=deque(),
nodeMsgRouter=Router(),
metrics=None,
process_one_node_message=None,
quota_control=FakeSomething(node_quota=Quota(count=100, size=100)),
nodestack=FakeSomething(
service=lambda *args, **kwargs: eventually(lambda: True)))
node.metrics = functools.partial(Node._createMetricsCollector, node)()
node.process_one_node_message = functools.partial(
Node.process_one_node_message, node)
view_changer = ViewChanger(node)
node.view_changer = view_changer
node.viewNo = view_changer.view_no
node.master_replica.node = node
return view_changer
def __init__(self, tmpdir, config=None):
self.basedirpath = tmpdir
self.name = 'Node1'
self.f = 1
self.replicas = dict()
self.requests = []
self.rank = None
self.allNodeNames = [self.name, 'Node2', 'Node3', 'Node4']
self.nodeReg = {
name: HA("127.0.0.1", 0) for name in self.allNodeNames
}
self.totalNodes = len(self.allNodeNames)
self.mode = Mode.starting
self.config = config or getConfigOnce()
self.replicas = {
0: Replica(node=self, instId=0, isMaster=True, config=self.config),
1: Replica(node=self, instId=1, isMaster=False, config=self.config),
2: Replica(node=self, instId=2, isMaster=False, config=self.config),
}
self._found = False
self.ledgerManager = LedgerManager(self, ownedByNode=True)
ledger0 = FakeLedger(0, 10)
ledger1 = FakeLedger(1, 5)
self.ledgerManager.addLedger(0, ledger0)
self.ledgerManager.addLedger(1, ledger1)
self.quorums = Quorums(self.totalNodes)
self.view_changer = ViewChanger(self)
self.elector = PrimarySelector(self)
self.metrics = NullMetricsCollector()
def test_get_msgs_from_rxMsgs_queue(create_node_and_not_start, looper):
node = create_node_and_not_start
node.view_changer = ViewChanger(node)
node.view_changer.view_no = 0
"""pre_view_change stage"""
node.view_changer.startViewChange(1)
assert node.view_changer.view_no == 0
prepare = Prepare(
0, 0, 1, get_utc_epoch(),
'f99937241d4c891c08e92a3cc25966607315ca66b51827b170d492962d58a9be',
'CZecK1m7VYjSNCC7pGHj938DSW2tfbqoJp1bMJEtFqvG',
'7WrAMboPTcMaQCU1raoj28vnhu2bPMMd2Lr9tEcsXeCJ')
inst_change = InstanceChange(1, 25)
m = node.nodeInBox.popleft()
assert isinstance(m[0], ViewChangeStartMessage)
node.nodestack.addRemote('someNode', genHa(),
b'1DYuELN<SHbv1?NJ=][4De%^Hge887B0I!s<YGdD',
'pubkey')
node.nodestack.rxMsgs.append((json.dumps(prepare._asdict()), 'pubkey'))
node.nodestack.rxMsgs.append((json.dumps(inst_change._asdict()), 'pubkey'))
node.msgHasAcceptableViewNo = lambda *args, **kwargs: True
"""While processing ViewChangeStartMessage from nodeInBox queue, should be:
- move msgs from rxMsgs queue to nodeInBox queue
- process all 3PC msgs (for Prepare msg it should be moved to inBox queue of master_replica)
- add ViewChangeContinue msg into master_replica's inBox queue
- all not 3PC msgs will be stashed in strategy queue"""
looper.run(node.process_one_node_message(m))
m = node.master_replica.inBox.popleft()
assert isinstance(m[0], Prepare)
m = node.master_replica.inBox.popleft()
assert isinstance(m, ViewChangeContinueMessage)
m = node.view_changer.pre_vc_strategy.stashedNodeInBox.popleft()
assert isinstance(m[0], InstanceChange)
def __init__(self, tmpdir):
self.basedirpath = tmpdir
self.name = 'Node1'
self.f = 1
self.replicas = []
self.rank = None
self.allNodeNames = [self.name, 'Node2', 'Node3', 'Node4']
self.nodeReg = {name: HA("127.0.0.1", 0) for name in self.allNodeNames}
self.totalNodes = len(self.allNodeNames)
self.mode = Mode.starting
self.replicas = [
Replica(node=self, instId=0, isMaster=True),
Replica(node=self, instId=1, isMaster=False),
Replica(node=self, instId=2, isMaster=False),
]
self._found = False
self.ledgerManager = LedgerManager(self, ownedByNode=True)
ledger0 = FakeLedger(0, 10)
ledger1 = FakeLedger(1, 5)
self.ledgerManager.addLedger(0, ledger0)
self.ledgerManager.addLedger(1, ledger1)
self.quorums = Quorums(self.totalNodes)
self.config = getConfig() # TODO do we need fake object here?
self.view_changer = ViewChanger(self)
self.elector = PrimarySelector(self)
def view_changer():
config = FakeSomething(ViewChangeWindowSize=1, ForceViewChangeFreq=0)
node = FakeSomething(name="fake node",
ledger_ids=[0],
config=config,
quorums=Quorums(7))
view_changer = ViewChanger(node)
return view_changer
def fake_view_changer(request, tconf):
node_stack = FakeSomething(name="fake stack",
connecteds={"Alpha", "Beta", "Gamma", "Delta"})
monitor = FakeSomething(isMasterDegraded=lambda: False, )
node = FakeSomething(
name="SomeNode",
viewNo=request.param,
quorums=Quorums(getValueFromModule(request, 'nodeCount', default=4)),
nodestack=node_stack,
utc_epoch=lambda *args: get_utc_epoch(),
config=tconf,
monitor=monitor,
discard=lambda a, b, c: print(b),
)
view_changer = ViewChanger(node)
return view_changer
def create_view_changer(node):
return ViewChanger(ViewChangerNodeModelDataProvider(node), node._timer)