async def _monitor_node_height(self) -> None:
now = datetime.utcnow().timestamp()
for node in self.nodes:
if now - node.best_height_last_update > self.MAX_HEIGHT_UPDATE_DURATION:
logger.debug(
f"Disconnecting node {node.nodeid} Reason: max height update threshold exceeded."
)
asyncio.create_task(
node.disconnect(
reason=payloads.DisconnectReason.POOR_PERFORMANCE))
else:
logger.debug(
f"Asking node {node.nodeid_human} to send us a height update (PING)"
)
# Request latest height from node
if settings.database:
height = max(0, blockchain.Blockchain().height)
else:
height = 0
m = message.Message(
msg_type=message.MessageType.PING,
payload=payloads.PingPayload(height=height))
task = asyncio.create_task(node.send_message(m))
self.tasks.append(task)
task.add_done_callback(lambda fut: self.tasks.remove(fut))
def increase_node_timeout_count(self, nodeid: int) -> None:
"""
Utility function to increase a node's `timeout_count` param by 1 and disconnect the node if it exceeds the
threshold set by :attr:`~neo3.network.convenience.nodemanager.MAX_NODE_ERROR_COUNT`.
Args:
nodeid (:attr:`~neo3.network.node.NeoNode.nodeid`): the specific node to update.
"""
node = self.get_node_by_nodeid(nodeid)
if node:
node.nodeweight.timeout_count += 1
if node.nodeweight.timeout_count > self.MAX_NODE_TIMEOUT_COUNT:
logger.debug(f"Disconnecting node {node.nodeid_human} Reason: max timeout count threshold exceeded.")
asyncio.create_task(node.disconnect(reason=payloads.DisconnectReason.POOR_PERFORMANCE))